{"id":20780,"date":"2022-04-06T13:05:39","date_gmt":"2022-04-06T07:35:39","guid":{"rendered":"https:\/\/ccssmathanswers.com\/?p=20780"},"modified":"2022-04-07T11:09:38","modified_gmt":"2022-04-07T05:39:38","slug":"big-ideas-math-answers-grade-1-chapter-1","status":"publish","type":"post","link":"https:\/\/bigideasmathanswers.com\/big-ideas-math-answers-grade-1-chapter-1\/","title":{"rendered":"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations"},"content":{"rendered":"<p>Download Big Ideas Math Book 1st Grade Answer Key Chapter 1 Addition and Subtraction Situations pdf for free of cost. Addition and subtraction are the basics you have to learn in maths to become a master. Make use of Big Ideas Math Book 1st Grade Answer Key Chapter 1 Addition and Subtraction Situations and start your preparation for exams. Quick and easy learning is possible with the help of <a href=\"https:\/\/bigideasmathanswers.com\/big-ideas-math-answers-grade-1\/\">Big Ideas Math Answers Grade 1<\/a> Chapter 1 Addition and Subtraction Situations.<\/p>\n<h2>Big Ideas Math Book 1st Grade Answer Key Chapter 1 Addition and Subtraction Situations<\/h2>\n<p>The topics covered in this Addition and Subtraction Situations are Vocabulary, Addition: Add To, Solve Add To Problems, etc. If you start practicing the problems from now itself you can score top in the exams. After practicing the problems we suggest you solve the questions given at the end of the chapter. So that you can know in which topic you are lagging and practice number of times. Simply tap the link who wish to practice and solve the problems.<\/p>\n<p><strong>Vocabulary<\/strong><\/p>\n<ul>\n<li><a href=\"#Addition_and_Subtraction_Situations_Vocabulary\">Addition and Subtraction Situations Vocabulary<\/a><\/li>\n<\/ul>\n<p><strong>Lesson: 1 Addition: Add To<\/strong><\/p>\n<ul>\n<li><a href=\"#Lesson_1.1_Addition:_Add_To\">Lesson 1.1 Addition: Add To<\/a><\/li>\n<li><a href=\"#Addition:_Add_To_Practice_1.1\">Addition: Add To Practice 1.1<\/a><\/li>\n<\/ul>\n<p><strong>Lesson: 2 Solve Add To Problems<\/strong><\/p>\n<ul>\n<li><a href=\"#Lesson_1.2_Solve_Add_To_Problems\">Lesson 1.2 Solve Add To Problems<\/a><\/li>\n<li><a href=\"#Solve_Add_To_Problems_Practice_1.2\">Solve Add To Problems Practice 1.2<\/a><\/li>\n<\/ul>\n<p><strong>Lesson: 3 Solve Put Together Problems<\/strong><\/p>\n<ul>\n<li><a href=\"#Lesson_1.3_Solve_Put_Together_Problems\">Lesson 1.3 Solve Put Together Problems<\/a><\/li>\n<li><a href=\"#Solve_Put_Together_Problems_Practice_1.3\">Solve Put Together Problems Practice 1.3<\/a><\/li>\n<\/ul>\n<p><strong>Lesson: 4 Solve Put Together Problems with Both Addends Unknown<\/strong><\/p>\n<ul>\n<li><a href=\"#Lesson_1.4_Solve_Put_Together_Problems_with_Both_Addends_Unknown\">Lesson 1.4 Solve Put Together Problems with Both Addends Unknown<\/a><\/li>\n<li><a href=\"#Solve_Put_Together_Problems_with_Both_Addends_Unknown_Practice_1.4\">Solve Put Together Problems with Both Addends Unknown Practice 1.4<\/a><\/li>\n<\/ul>\n<p><strong>Lesson: 5 Solve Take From Problems<\/strong><\/p>\n<ul>\n<li><a href=\"#Lesson_1.5_Solve_Take_From_Problems\">Lesson 1.5 Solve Take From Problems<\/a><\/li>\n<li><a href=\"#Solve_Take_From_Problems_Practice_1.5\">Solve Take From Problems Practice 1.5<\/a><\/li>\n<\/ul>\n<p><strong>Lesson: 6 Solve Compare Problems: More<\/strong><\/p>\n<ul>\n<li><a href=\"#Lesson_1.6_Solve_Compare_Problems:_More\">Lesson 1.6 Solve Compare Problems: More<\/a><\/li>\n<li><a href=\"#Solve_Compare_Problems:_More_Practice_1.6\">Solve Compare Problems: More Practice 1.6<\/a><\/li>\n<\/ul>\n<p><strong>Lesson: 7 Solve Compare Problems: Fewer<\/strong><\/p>\n<ul>\n<li><a href=\"#Lesson_1.7_Solve_Compare_Problems:_Fewer\">Lesson 1.7 Solve Compare Problems: Fewer<\/a><\/li>\n<li><a href=\"#Solve_Compare_Problems:_Fewer_Practice_1.7\">Solve Compare Problems: Fewer Practice 1.7<\/a><\/li>\n<\/ul>\n<p><strong>Lesson: 8 Solve Add To Problems with Change Unknown<\/strong><\/p>\n<ul>\n<li><a href=\"#Lesson_1.8_Solve_Add_To_Problems_with_Change_Unknown\">Lesson 1.8 Solve Add To Problems with Change Unknown<\/a><\/li>\n<li><a href=\"#Solve_Add_To_Problems_with_Change_Unknown_Practice_1.8\">Solve Add To Problems with Change Unknown Practice 1.8<\/a><\/li>\n<\/ul>\n<p><strong>Lesson: 9 Connect Put Together and Take Apart Problems<\/strong><\/p>\n<ul>\n<li><a href=\"#Lesson_1.9_Connect_Put_Together_and_Take_Apart_Problems\">Lesson 1.9 Connect Put Together and Take Apart Problems<\/a><\/li>\n<li><a href=\"#Connect_Put_Together_and_Take_Apart_Problems_Practice_1.9\">Connect Put Together and Take Apart Problems Practice 1.9<\/a><\/li>\n<\/ul>\n<p><strong>Performance Task<\/strong><\/p>\n<ul>\n<li><a href=\"#Addition_and_Subtraction_Situations_Performance_Task\">Addition and Subtraction Situations Performance Task<\/a><\/li>\n<\/ul>\n<h3><a id=\"Addition_and_Subtraction_Situations_Vocabulary\"><\/a>Addition and Subtraction Situations Vocabulary<\/h3>\n<p><strong>Oraganize it<\/strong><\/p>\n<p>Use the review words to complete the graphic organizer<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-20997\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-1.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 1\" width=\"439\" height=\"147\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-1.png 439w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-1-300x100.png 300w\" sizes=\"(max-width: 439px) 100vw, 439px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\n<img src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-1.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 1\" \/><br \/>\nLABELLING:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-26993\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Addition-and-Subtraction-Situations.png\" alt=\"\" width=\"532\" height=\"242\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Addition-and-Subtraction-Situations.png 532w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Addition-and-Subtraction-Situations-300x136.png 300w\" sizes=\"(max-width: 532px) 100vw, 532px\" \/><\/p>\n<p><strong>Define it<\/strong><\/p>\n<p>Use your vocabulary cards to match.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-20996\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-2.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 2\" width=\"452\" height=\"284\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-2.png 452w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-2-300x188.png 300w\" sizes=\"(max-width: 452px) 100vw, 452px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\n<img src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-2.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 2\" \/><\/p>\n<p>EXPLANATION:<br \/>\nMATCHING :<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-26994\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Addition-and-Subtraction-Situations-Define-it.png\" alt=\"\" width=\"532\" height=\"373\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Addition-and-Subtraction-Situations-Define-it.png 532w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Addition-and-Subtraction-Situations-Define-it-300x210.png 300w\" sizes=\"(max-width: 532px) 100vw, 532px\" \/><\/p>\n<h3><a id=\"Lesson_1.1_Addition:_Add_To\"><\/a>Lesson 1.1 Addition: Add To<\/h3>\n<p><strong>Explore and Grow<\/strong><\/p>\n<p>Use linking cubes to model the story.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-21019\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-1.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 1\" width=\"556\" height=\"594\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-1.png 556w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-1-281x300.png 281w\" sizes=\"(max-width: 556px) 100vw, 556px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of bears = 4<br \/>\nNumber of more bears added\u00a0 = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of bears = Number of bears\u00a0 + Number of more bears added<br \/>\n=4 + 2 =6<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27020\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-Add-To-Grow.png\" alt=\"\" width=\"252\" height=\"138\" \/><br \/>\nHence, Total number of bears = 6.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21017\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-2.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 2\" width=\"345\" height=\"132\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-2.png 345w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-2-300x115.png 300w\" sizes=\"(max-width: 345px) 100vw, 345px\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21016\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-3.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 3\" width=\"221\" height=\"127\" \/><br \/>\nAddition equation: __________ + ___________ = ___________<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of cats = 5<br \/>\nNumber of more cats added = 1<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal Number of cats = Number of cats\u00a0 + Number of more cats added<br \/>\n=5 + 1 = 6<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27021\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-Show-and-Grow.png\" alt=\"\" width=\"293\" height=\"182\" \/><br \/>\nHence, total number of cats = 6.<\/p>\n<p><strong>Apply and Grow: Practice<\/strong><\/p>\n<p>Question 2.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21015\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-4.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 4\" width=\"385\" height=\"87\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-4.png 385w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-4-300x68.png 300w\" sizes=\"(max-width: 385px) 100vw, 385px\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21014\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-5.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 5\" width=\"239\" height=\"121\" \/><br \/>\n__________ + ___________ = ___________<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of crabs = 3<br \/>\nNumber of crabs added more = 6<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of crabs = Number of crabs + Number of crabs added more<br \/>\n=3 + 6 = 9<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27022\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-Apply-and-Grow-Practice2.png\" alt=\"\" width=\"375\" height=\"190\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-Apply-and-Grow-Practice2.png 375w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-Apply-and-Grow-Practice2-300x152.png 300w\" sizes=\"(max-width: 375px) 100vw, 375px\" \/><br \/>\nHence, Total number of crabs = 9.<\/p>\n<p>Question 3.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21013\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-6.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 6\" width=\"502\" height=\"108\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-6.png 502w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-6-300x65.png 300w\" sizes=\"(max-width: 502px) 100vw, 502px\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21012\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-7.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 7\" width=\"237\" height=\"123\" \/><br \/>\n__________ + ___________ = ___________<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of pigs = 8<br \/>\nNumber of pigs added more = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of pigs = Number of pigs + Number of pigs added more<br \/>\n=8 + 2 = 10<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27023\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-Apply-and-Grow-Practice3.png\" alt=\"\" width=\"398\" height=\"110\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-Apply-and-Grow-Practice3.png 398w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-Apply-and-Grow-Practice3-300x83.png 300w\" sizes=\"(max-width: 398px) 100vw, 398px\" \/><br \/>\nHence, Total number of pigs = 10.<\/p>\n<p>Question 4.<br \/>\n<strong>DIG DEEPER!<\/strong><br \/>\nComplete the picture and the story.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21011\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-8.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 8\" width=\"369\" height=\"75\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-8.png 369w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-8-300x61.png 300w\" sizes=\"(max-width: 369px) 100vw, 369px\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21010\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-9.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 9\" width=\"215\" height=\"124\" \/><br \/>\n__________ + ___________ = ___________<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of owls in the picture = 3<br \/>\nNumber of owls added more = 3<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of owls in the picture = Number of owls in the picture\u00a0 + Number of owls added more<br \/>\n=3 + 3 = 6<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27024\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-dig-deeper4.png\" alt=\"\" width=\"443\" height=\"127\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-dig-deeper4.png 443w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-dig-deeper4-300x86.png 300w\" sizes=\"(max-width: 443px) 100vw, 443px\" \/><\/p>\n<p>Hence,\u00a0 Total number of owls in the picture = 6.<\/p>\n<p><strong>Think and Grow: Modeling Real Life<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-21009\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-10.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 10\" width=\"525\" height=\"289\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-10.png 525w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-10-300x165.png 300w\" sizes=\"(max-width: 525px) 100vw, 525px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of fishes = 5<br \/>\nNumber of fishes added more = 3<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of fishes = Number of fishes +\u00a0 Number of fishes added more<br \/>\n=5 + 3 = 8<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27025\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-Think-and-Grow-Modeling-Real-Life.png\" alt=\"\" width=\"360\" height=\"135\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-Think-and-Grow-Modeling-Real-Life.png 360w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-Think-and-Grow-Modeling-Real-Life-300x113.png 300w\" sizes=\"(max-width: 360px) 100vw, 360px\" \/><br \/>\nHence, Total number of fishes =\u00a0 8.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 5.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21008\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-11.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 11\" width=\"526\" height=\"333\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-11.png 526w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-11-300x190.png 300w\" sizes=\"(max-width: 526px) 100vw, 526px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of tortoise = 2<br \/>\nNumber of tortoise added more = 7<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of tortoise = Number of tortoise + Number of tortoise added more<br \/>\n=2 + 7 = 9<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27026\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-5..png\" alt=\"\" width=\"554\" height=\"227\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-5..png 554w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.1-Addition-5.-300x123.png 300w\" sizes=\"(max-width: 554px) 100vw, 554px\" \/><br \/>\nHence, total number of tortoise = 9.<\/p>\n<h3><a id=\"Addition:_Add_To_Practice_1.1\"><\/a>Addition: Add To Practice 1.1<\/h3>\n<p>Question 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21007\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-12.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 12\" width=\"472\" height=\"110\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-12.png 472w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-12-300x70.png 300w\" sizes=\"(max-width: 472px) 100vw, 472px\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21006\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-13.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 13\" width=\"214\" height=\"120\" \/><br \/>\n__________ + ___________ = ___________<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of foxes = 6<br \/>\nNumber of foxes added more = 1<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of foxes = Number of foxes + Number of foxes added more<br \/>\n=6 + 1 = 7<br \/>\nHence, Total number of foxes = 7.<\/p>\n<p>Question 2.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21005\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-14.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 14\" width=\"433\" height=\"105\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-14.png 433w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-14-300x73.png 300w\" sizes=\"(max-width: 433px) 100vw, 433px\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21004\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-15.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 15\" width=\"225\" height=\"107\" \/><br \/>\n__________ + ___________ = ___________<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of bugs = 7<br \/>\nNumber of bugs added more = 3<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of bugs = Number of bugs\u00a0 + Number of bugs added more<br \/>\n=7 + 3 = 10<br \/>\nHence, the Total number of bugs = 10.<\/p>\n<p>Question 3.<br \/>\n<strong>DIG DEEPER!<\/strong><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21003\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-16.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 16\" width=\"519\" height=\"78\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-16.png 519w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-16-300x45.png 300w\" sizes=\"(max-width: 519px) 100vw, 519px\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21002\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-17.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 17\" width=\"213\" height=\"122\" \/><br \/>\n__________ + ___________ = ___________<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of parrots = 6<br \/>\nNumber of parrots added more = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of parrots = Number of parrots\u00a0 + Number of parrots added more<br \/>\n=6 + 2 = 8<br \/>\nHence, Total number of parrots = 8.<\/p>\n<p>Question 4.<br \/>\nModeling Real Life<br \/>\nThere are 2 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21001\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-18.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 18\" width=\"32\" height=\"41\" \/>. 7 more <img loading=\"lazy\" class=\"alignnone size-full wp-image-21001\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-18.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 18\" width=\"32\" height=\"41\" \/> join them. How many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21001\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-18.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 18\" width=\"32\" height=\"41\" \/> are there now?<\/p>\n<p>&nbsp;<\/p>\n<p>___________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21001\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-18.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 18\" width=\"32\" height=\"41\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of ducks = 2<br \/>\nNumber of ducks added more = 7<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of ducks = Number of ducks + Number of ducks added more<br \/>\n= 2 + 7 = 9<br \/>\nHence, the Total number of ducks = 9.<\/p>\n<p><strong>Review and Refresh<\/strong><\/p>\n<p>Write the number of objects.<\/p>\n<p>Question 5.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21000\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-19.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 19\" width=\"212\" height=\"189\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nApples in the picture.<br \/>\nCOUNT:<br \/>\nNumber of apples first row = 4<br \/>\nNumber of apples second row = 3<br \/>\nEXPLANATION:<br \/>\nTotal number of apples in both rows = Number of apples first row + Number of apples second row<br \/>\n= 4 + 3 = 7<br \/>\nHence, the Total number of apples in both rows = 7.<\/p>\n<p>Question 5.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21024\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-20-1.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 20\" width=\"238\" height=\"191\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nBananas in the picture.<br \/>\nCOUNT:<br \/>\nNumber of Bananas first row = 4<br \/>\nNumber of Bananas second row = 4<br \/>\nNumber of Bananas third row = 2<br \/>\nEXPLANATION:<br \/>\nTotal number of Bananas in all three rows = Number of Bananas first row + Number of Bananas second row + Number of Bananas third row<br \/>\n= 4 + 4 +2<br \/>\n= 8 + 2<br \/>\n= 10.<br \/>\nHence, Total number of Bananas in all three rows = 10.<\/p>\n<h3>Lesson 1.2 Solve Add To Problems<\/h3>\n<p><strong>Explore and Grow<\/strong><\/p>\n<p>Use linking cubes to model the story.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-21065\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-1.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 1\" width=\"520\" height=\"582\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-1.png 520w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-1-268x300.png 268w\" sizes=\"(max-width: 520px) 100vw, 520px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of hats = 5<br \/>\nNumber of hats added more = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of hats = Number of hats + Number of hats added more<br \/>\n= 5 + 2 = 7<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27029\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-explore.png\" alt=\"\" width=\"265\" height=\"124\" \/><br \/>\nHence, Total number of hats= 7.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21064\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-2.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 2\" width=\"200\" height=\"137\" \/><br \/>\nAddition equation:<br \/>\n__________ + ___________ = ___________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21063\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-3.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 3\" width=\"34\" height=\"37\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of balls = 4<br \/>\nNumber of balls added more = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of balls = Number of balls + Number of balls added more<br \/>\n= 4 + 2 = 6<br \/>\nHence, number of balls = 6.<\/p>\n<p>Question 2.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21062\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-4.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 4\" width=\"186\" height=\"157\" \/><br \/>\nAddition equation:<br \/>\n__________ + ___________ = ___________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21061\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-5.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 5\" width=\"34\" height=\"45\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of rabbits = 4<br \/>\nNumber of rabbits more added = 4<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of rabbits = Number of rabbits + Number of rabbits more added<br \/>\n= 4 + 4\u00a0 = 8<br \/>\nHence, number of rabbits = 8.<\/p>\n<p><strong>Apply and Grow: Practice<\/strong><\/p>\n<p>Question 3.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21060\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-6.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 6\" width=\"294\" height=\"124\" \/><br \/>\n__________ + ___________ = ___________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21059\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-7.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 7\" width=\"32\" height=\"42\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of books = 2<br \/>\nNumber of books added more = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of books = Number of books + Number of books added more<br \/>\n= 2 + 2 = 4<br \/>\nHence, Total number of books = 4.<\/p>\n<p>Question 4.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21058\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-8.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 8\" width=\"284\" height=\"124\" \/><br \/>\n__________ + ___________ = ___________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21057\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-9.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 9\" width=\"45\" height=\"42\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of ants = 3<br \/>\nNumber of ants added more = 5<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of ants = Number of ants\u00a0 + Number of ants added more<br \/>\n= 3 + 5 = 8<br \/>\nHence, Total number of ants = 8.<\/p>\n<p>Question 5.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21056\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-10.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 10\" width=\"239\" height=\"117\" \/><br \/>\n__________ + ___________ = ___________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21055\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-11.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 11\" width=\"31\" height=\"36\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of chocolates eaten by me = 9<br \/>\nNumber of chocolates eaten by me more = 1<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of chocolates eaten by me = Number of chocolates eaten by me + Number of chocolates eaten by me more<br \/>\n= 9 + 1 = 10.<br \/>\nHence, Total number of chocolates eaten by me = 10.<\/p>\n<p>Question 6.<br \/>\n<strong>DIG DEEPER<\/strong><br \/>\nComplete the picture and the story<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21054\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-12.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 12\" width=\"421\" height=\"63\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-12.png 421w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-12-300x45.png 300w\" sizes=\"(max-width: 421px) 100vw, 421px\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21053\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-13.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 13\" width=\"230\" height=\"122\" \/><br \/>\n__________ + ___________ = ___________<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of snails = 4<br \/>\nNumber of snails added more = 3<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of snails = Number of snails\u00a0 + Number of snails added more<br \/>\n= 4 + 3 = 7<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27030\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Question-6.-digdeeper.png\" alt=\"\" width=\"547\" height=\"97\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Question-6.-digdeeper.png 547w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Question-6.-digdeeper-300x53.png 300w\" sizes=\"(max-width: 547px) 100vw, 547px\" \/><br \/>\nHence, Total number of snails = 7.<\/p>\n<p><strong>Think and Grow: Modeling Real Life<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-21052\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-14.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 14\" width=\"521\" height=\"311\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-14.png 521w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-14-300x179.png 300w\" sizes=\"(max-width: 521px) 100vw, 521px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of apples with me = 3<br \/>\nNumber of apples I purchased = 7<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of apples I am having = Number of apples with me\u00a0 + Number of apples I purchased<br \/>\n= 3 + 7 = 10.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27031\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Think-and-Grow-Modeling-Real-Life1.png\" alt=\"\" width=\"545\" height=\"197\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Think-and-Grow-Modeling-Real-Life1.png 545w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Think-and-Grow-Modeling-Real-Life1-300x108.png 300w\" sizes=\"(max-width: 545px) 100vw, 545px\" \/><br \/>\nHence, Total number of apples I am having = 10.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 7.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21051\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-15.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 15\" width=\"522\" height=\"296\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-15.png 522w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-15-300x170.png 300w\" sizes=\"(max-width: 522px) 100vw, 522px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of cube boxes = 6<br \/>\nNumber of cube boxes more added given by your Friend= 3<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of cube boxes = Number of cube boxes + Number of cube boxes more added given by your Friend<br \/>\n= 6 + 3 = 9<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27033\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Think-and-Grow-Modeling-Real-Life-Show-and-Grow7-1.png\" alt=\"\" width=\"458\" height=\"225\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Think-and-Grow-Modeling-Real-Life-Show-and-Grow7-1.png 458w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Think-and-Grow-Modeling-Real-Life-Show-and-Grow7-1-300x147.png 300w\" sizes=\"(max-width: 458px) 100vw, 458px\" \/><\/p>\n<p>Hence, Total number of cube boxes = 9.<\/p>\n<h3><a id=\"Lesson_1.2_Solve_Add_To_Problems\"><\/a>Solve Add To Problems Practice 1.2<\/h3>\n<p>Question 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21050\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-16.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 16\" width=\"312\" height=\"117\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-16.png 312w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-16-300x113.png 300w\" sizes=\"(max-width: 312px) 100vw, 312px\" \/><br \/>\n__________ + ___________ = ___________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21049\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-17.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 17\" width=\"41\" height=\"28\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of pencils = 2<br \/>\nNumber of pencils\u00a0 purchased more = 3<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of pencils\u00a0 = Number of pencils + Number of pencils purchased more<br \/>\n= 2 + 3 = 5<br \/>\nHence, Total number of pencils = 5.<\/p>\n<p>Question 2.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21048\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-18.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 18\" width=\"274\" height=\"116\" \/><br \/>\n__________ + ___________ = ___________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21047\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-19.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 19\" width=\"34\" height=\"31\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of flowers = 6<br \/>\nNumber of flowers added more = 4<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of flowers = Number of flowers + Number of flowers added more<br \/>\n= 6 + 4 = 10<br \/>\nHence, Total number of flowers = 10.<\/p>\n<p>Question 3.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21046\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-20.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 20\" width=\"268\" height=\"120\" \/><br \/>\n__________ + ___________ = ___________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21045\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-21.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 21\" width=\"31\" height=\"29\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of butterflies = 5<br \/>\nNumber of butterflies added more = 4<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of butterflies = Number of butterflies + Number of butterflies added more<br \/>\n= 5 + 4 = 9<br \/>\nHence, Total number of butterflies = 9.<\/p>\n<p>Question 4.<br \/>\n<strong>DIG DEEPER<\/strong><br \/>\nComplete the picture and the story.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21044\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-22.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 22\" width=\"356\" height=\"96\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-22.png 356w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-22-300x81.png 300w\" sizes=\"(max-width: 356px) 100vw, 356px\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21043\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-23.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 23\" width=\"218\" height=\"95\" \/><br \/>\n__________ + ___________ = ___________<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of Frogs = 7<br \/>\nNumber of Frogs more added = 3<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of frogs = Number of Frogs + Number of Frogs more added<br \/>\n= 7 + 3 = 10<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27034\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Question-4-digdeeper.png\" alt=\"\" width=\"491\" height=\"224\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Question-4-digdeeper.png 491w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Question-4-digdeeper-300x137.png 300w\" sizes=\"(max-width: 491px) 100vw, 491px\" \/><br \/>\nHence, Total number of frogs = 10.<\/p>\n<p>Question 5.<br \/>\n<strong>Modeling Real Life<\/strong><br \/>\nYou have 2 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21042\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-24.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 24\" width=\"37\" height=\"36\" \/>. You buy 4<img loading=\"lazy\" class=\"alignnone size-full wp-image-21042\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-24.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 24\" width=\"37\" height=\"36\" \/>. How many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21042\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-24.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 24\" width=\"37\" height=\"36\" \/> do you have now?<\/p>\n<p>_____________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21042\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-24.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 24\" width=\"37\" height=\"36\" \/><\/p>\n<p>Answer:<br \/>\nGIVEN:<br \/>\nNumber of balls = 2<br \/>\nNumber of balls purchased more = 4<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of balls = Number of balls + Number of balls purchased more<br \/>\n= 2 + 4 = 6<br \/>\nHence, Total number of balls = 6.<\/p>\n<p><strong>Review &amp; Refresh<\/strong><\/p>\n<p>Question 6.<br \/>\nUse the picture to complete the number bond.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21041\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-25.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 25\" width=\"544\" height=\"216\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-25.png 544w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-25-300x119.png 300w\" sizes=\"(max-width: 544px) 100vw, 544px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of lemons = 6<br \/>\nNumber of circle bonding given = 3<br \/>\nEXPLANATION:<br \/>\nDIVISION:<br \/>\nThe picture of the number bond with lemons = 6\/3 = 2 in each circle.<br \/>\nHence, the picture is below:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27035\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2review.png\" alt=\"\" width=\"384\" height=\"330\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2review.png 384w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2review-300x258.png 300w\" sizes=\"(max-width: 384px) 100vw, 384px\" \/><\/p>\n<h3><a id=\"Lesson_1.3_Solve_Put_Together_Problems\"><\/a>Lesson 1.3 Solve Put Together Problems<\/h3>\n<p><strong>Explore and Grow<\/strong><\/p>\n<p>Use counters to model the story.<\/p>\n<p>You have 7 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21111\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-1.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 1\" width=\"34\" height=\"48\" \/> and 2 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21110\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-2.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 2\" width=\"62\" height=\"35\" \/>. How many toys do you have in all?<\/p>\n<p>&nbsp;<\/p>\n<p>______ toys<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of robot toys =7<br \/>\nNumber of car toys = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of toys = Number of robot toys + Number of car toys<br \/>\n= 7 + 2 = 9<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-27762\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.3-Solve-Put-Together-Problems.png\" alt=\"\" width=\"300\" height=\"169\" \/><br \/>\nHence, total number of toys = 9.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 1.<br \/>\nYou have 3 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21109\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-3.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 3\" width=\"32\" height=\"31\" \/> and 1 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21108\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-4.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 4\" width=\"33\" height=\"31\" \/>\u00a0How many balls do you<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21107\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-5.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 5\" width=\"510\" height=\"142\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-5.png 510w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-5-300x84.png 300w\" sizes=\"(max-width: 510px) 100vw, 510px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of volleyballs = 3<br \/>\nNumber of footballs = 1<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of balls = Number of volleyballs + Number of footballs<br \/>\n= 3 + 1 = 4<br \/>\nHence, total number of balls = 4.<\/p>\n<p>Question 2.<br \/>\nThere are 2 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21106\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-6.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 6\" width=\"43\" height=\"28\" \/> and 6 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21105\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-7.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 7\" width=\"43\" height=\"25\" \/>\u00a0How many fish are there in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21104\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-8.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 8\" width=\"522\" height=\"144\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-8.png 522w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-8-300x83.png 300w\" sizes=\"(max-width: 522px) 100vw, 522px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of green fishes = 2<br \/>\nNumber of yellow fishes = 6<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of fishes = Number of green fishes + Number of yellow fishes<br \/>\n= 2 + 6 =8<\/p>\n<p>Hence, total number of fishes = 8.<\/p>\n<p>Question 3.<br \/>\nYou have 1 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21103\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-9.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 9\" width=\"32\" height=\"44\" \/> and 5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21102\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-10.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 10\" width=\"29\" height=\"40\" \/>. How many pets do you have in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21101\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-11.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 11\" width=\"542\" height=\"146\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-11.png 542w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-11-300x81.png 300w\" sizes=\"(max-width: 542px) 100vw, 542px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of dogs = 1<br \/>\nNumber of cats = 5<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of pets = Number of dogs + Number of cats<br \/>\n= 1 + 5 = 6<br \/>\nHence, total number of pets = 6.<\/p>\n<p>Question 4.<br \/>\nThere are 4 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21100\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-12.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 12\" width=\"31\" height=\"39\" \/> and 6 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21099\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-13.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 13\" width=\"28\" height=\"40\" \/>. How many animals are there in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21098\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-14.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 14\" width=\"545\" height=\"145\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-14.png 545w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-14-300x80.png 300w\" sizes=\"(max-width: 545px) 100vw, 545px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of Horses = 4<br \/>\nNumber of Hens = 6<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of animals = Number of Horses + Number of Hens<br \/>\n= 4 + 6 = 10<br \/>\nHence, total number of animals = 10.<\/p>\n<p>Question 5.<br \/>\n<strong>MP Number Sense<\/strong><br \/>\nNumber Sense Circle two groups of bugs to match the addition problem. Then \ufb01nd the sum.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21097\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-15.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 15\" width=\"514\" height=\"108\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-15.png 514w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-15-300x63.png 300w\" sizes=\"(max-width: 514px) 100vw, 514px\" \/><br \/>\n3 + 5 = __________<br \/>\nAnswer:<\/p>\n<p><strong>Think and Grow: Modeling Real Life<\/strong><\/p>\n<p>You have 3 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21096\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-16.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 16\" width=\"21\" height=\"37\" \/> and 4 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21095\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-17.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 17\" width=\"24\" height=\"35\" \/> . Your friend has 8 flowers. Who has more flowers?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21094\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-18.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 18\" width=\"60\" height=\"131\" \/><br \/>\nModel:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21093\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-19.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 19\" width=\"224\" height=\"144\" \/><br \/>\nAddition equation:<\/p>\n<p>Who has more flowers?\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 You\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Friend<\/p>\n<p>Show and Grow<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of purple flower I am having = 3<br \/>\nNumber of yellow flower I am having = 4<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of flowers I am having = Number of purple flower I am having + Number of yellow flower I am having<br \/>\n= 3 + 4 =7<br \/>\nTotal Number of flowers my Friend having = 8<br \/>\nCOMPARISION:<br \/>\nNumber of flowers has more flowers = Total number of flowers I am having\u00a0 or Total Number of flowers my Friend having<br \/>\n=&gt; <img loading=\"lazy\" class=\"alignnone size-full wp-image-28386\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Think-and-Grow-Modeling-Real-Life1-1.png\" alt=\"\" width=\"145\" height=\"93\" \/><br \/>\nHence, my Friend has more flowers than me.<\/p>\n<p>Question 6.<br \/>\nYou have 4 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21092\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-20.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 20\" width=\"29\" height=\"34\" \/> and 5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21091\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-21.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 21\" width=\"36\" height=\"33\" \/> . Your friend has 7 leaves. Who has more leaves?<br \/>\nModel:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21090\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-22.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 22\" width=\"232\" height=\"147\" \/><br \/>\nAddition equation:<\/p>\n<p>Who has more leaves?\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0You\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Friend<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of\u00a0 orange leaves with me = 4<br \/>\nNumber of\u00a0 green leaves with me= 5<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of leaves with me= Number of\u00a0 orange leaves with me + Number of\u00a0 green leaves with me<br \/>\n= 4 + 5 = 9<br \/>\nTotal number of leaves my friend having = 7<br \/>\nCOMPARISION:<br \/>\nNumber of leaves who is having more = Total number of leaves with me or Total number of leaves my friend having<br \/>\n= <img loading=\"lazy\" class=\"alignnone size-full wp-image-28390\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Think-and-Grow-Modeling-Real-Life1-2.png\" alt=\"\" width=\"134\" height=\"67\" \/><br \/>\nHence, number of leaves with me are more than my friend.<\/p>\n<h3>Solve Put Together Problems Practice 1.3<\/h3>\n<p>Question 1.<br \/>\nYou buy 1 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21089\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-23.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 23\" width=\"23\" height=\"47\" \/> and 7 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21088\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-24.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 24\" width=\"38\" height=\"31\" \/>. How many pieces of fruit do you buy in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21087\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-25.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 25\" width=\"545\" height=\"146\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-25.png 545w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-25-300x80.png 300w\" sizes=\"(max-width: 545px) 100vw, 545px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of pineapples purchased = 1<br \/>\nNumber of bananas purchased = 7<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of fruits purchased = Number of pineapples purchased + Number of bananas purchased<br \/>\n= 1 + 7 = 8<br \/>\nHence, Total number of fruits purchased = 8.<\/p>\n<p>Question 2.<br \/>\nThere are 5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21086\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-26.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 26\" width=\"47\" height=\"35\" \/> and 5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21085\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-27.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 27\" width=\"30\" height=\"44\" \/> . How many birds are there in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21084\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-28.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 28\" width=\"551\" height=\"146\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-28.png 551w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-28-300x79.png 300w\" sizes=\"(max-width: 551px) 100vw, 551px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of koala birds = 5<br \/>\nNumber of kuku\u00a0 birds = 5<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of birds = Number of koala birds + Number of kuku\u00a0 birds<br \/>\n= 5 + 5 = 10<br \/>\nHence, Total number of birds = 10.<\/p>\n<p>Question 3.<br \/>\n<strong>MP Number Sense<\/strong><br \/>\nCircle two groups of hats to match the addition problem. Then find the sum.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21083\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-29.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 29\" width=\"345\" height=\"114\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-29.png 345w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-29-300x99.png 300w\" sizes=\"(max-width: 345px) 100vw, 345px\" \/><br \/>\n6 + 1 = 7<br \/>\nAnswer:<\/p>\n<p>Question 4.<br \/>\n<strong>Modeling Real Life<\/strong><br \/>\nYou have 4 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21082\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-30.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 30\" width=\"39\" height=\"28\" \/> and 5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21081\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-31.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 31\" width=\"36\" height=\"25\" \/>. You friend has 8 cars. Who has more cars?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21080\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-32.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 32\" width=\"223\" height=\"144\" \/><br \/>\nWho has more cars?\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 You\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Friend<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of blue cars with me\u00a0= 4<br \/>\nNumber of yellow cars with me\u00a0= 5<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of cars with me = Number of blue cars with me+ Number of yellow cars with me<br \/>\n= 4 + 5 = 9<br \/>\nNumber of cars my friend has = 8<br \/>\nCOMPARISION:<br \/>\nNumber of cars who has more = Total number of cars with me \u00a0or Number of cars my friend has<br \/>\n= <img loading=\"lazy\" class=\"alignnone size-full wp-image-28394\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.2-Think-and-Grow-Modeling-Real-Life1-3.png\" alt=\"\" width=\"136\" height=\"82\" \/><br \/>\nHence, total number of cars with me are more than my friend.<\/p>\n<p><strong>Review &amp; Refresh<\/strong><\/p>\n<p>Question 5.<br \/>\nWrite the number for each type of pepper. Write the number for the whole.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21079\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-33.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 33\" width=\"430\" height=\"147\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-33.png 430w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-33-300x103.png 300w\" sizes=\"(max-width: 430px) 100vw, 430px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of yellow pepper =\u00a0 3 or three<br \/>\nNumber of red pepper =\u00a0 3 or three<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of pepper = Number of yellow pepper + Number of red pepper<br \/>\n=\u00a0 3 + 3 = 6 or Six.<br \/>\nHence, Total number of pepper = 6 or Six.<\/p>\n<h3><a id=\"Lesson_1.4_Solve_Put_Together_Problems_with_Both_Addends_Unknown\"><\/a>Lesson 1.4 Solve Put Together Problems with Both Addends Unknown<\/h3>\n<p><strong>Explore and Grow<\/strong><\/p>\n<p>Use linking cubes to model the story.<\/p>\n<p>There are 10 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21143\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-34.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 34\" width=\"32\" height=\"35\" \/>. Some are on the court and some are on the rack <img loading=\"lazy\" class=\"alignnone size-full wp-image-21143\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-34.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 34\" width=\"32\" height=\"35\" \/>.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21142\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-35.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 35\" width=\"554\" height=\"514\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-35.png 554w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-35-300x278.png 300w\" sizes=\"(max-width: 554px) 100vw, 554px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of cubes on the court = 6<br \/>\nNumber of cubes on the rack = 4<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of cubes = Number of cubes on the court + Number of cubes on the rack<br \/>\n= 6 + 4 = 10<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-28519\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Solve-Put-Together-Problems-with-Both-Addends-Unknown.png\" alt=\"\" width=\"316\" height=\"95\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Solve-Put-Together-Problems-with-Both-Addends-Unknown.png 316w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Solve-Put-Together-Problems-with-Both-Addends-Unknown-300x90.png 300w\" sizes=\"(max-width: 316px) 100vw, 316px\" \/><br \/>\nHence, total number of cubes = 10.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 1.<br \/>\nThere are 7 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21141\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-36.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 36\" width=\"29\" height=\"38\" \/> Some are on a tree. Some more are on the ground. Draw the <img loading=\"lazy\" class=\"alignnone size-full wp-image-21141\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-36.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 36\" width=\"29\" height=\"38\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21140\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-37.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 37\" width=\"121\" height=\"146\" \/><br \/>\nAddition equation: ________ = ________ + _______<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of apples on the tree = 4<br \/>\nNumber of apples on the ground = 3<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of apples = Number of apples on the tree + Number of apples on the ground<br \/>\n= 4 + 3 = 7.<br \/>\nPICTURE :<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-28521\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Show-and-Grow1.png\" alt=\"\" width=\"332\" height=\"360\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Show-and-Grow1.png 332w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Show-and-Grow1-277x300.png 277w\" sizes=\"(max-width: 332px) 100vw, 332px\" \/><br \/>\nHence, drawn the picture.<\/p>\n<p><strong>Apply and Grow: Practice<\/strong><\/p>\n<p>Question 2.<br \/>\nThere are 5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21139\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-38.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 38\" width=\"34\" height=\"31\" \/> Some are on a couch. Some more are on a rug. Draw the <img loading=\"lazy\" class=\"alignnone size-full wp-image-21139\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-38.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 38\" width=\"34\" height=\"31\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21138\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-39.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 39\" width=\"288\" height=\"194\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of dogs on a couch = 3<br \/>\nNumber of dogs on a rug = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of dogs = Number of dogs on a couch + Number of dogs on a rug<br \/>\n= 3 + 2 = 5<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-28522\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Show-and-Grow2.png\" alt=\"\" width=\"372\" height=\"203\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Show-and-Grow2.png 372w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Show-and-Grow2-300x164.png 300w\" sizes=\"(max-width: 372px) 100vw, 372px\" \/><br \/>\nHence, picture is drawn.<\/p>\n<p>Question 3.<br \/>\nThere are 8 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21137\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-40.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 40\" width=\"42\" height=\"36\" \/> Some are in a pond. Some more are in the grass. Draw two different pictures to show the <img loading=\"lazy\" class=\"alignnone size-full wp-image-21137\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-40.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 40\" width=\"42\" height=\"36\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21136\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-41.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 41\" width=\"543\" height=\"251\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-41.png 543w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-41-300x139.png 300w\" sizes=\"(max-width: 543px) 100vw, 543px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nTotal number of snakes = 8<br \/>\nFIGURE:1:<br \/>\nNumber of snakes in a pond = 4<br \/>\nNumber of snakes in a grass = 4<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of snakes = Number of snakes in a pond + Number of snakes in a grass<br \/>\n= 4 + 4 = 8<br \/>\nFIGURE:2:<br \/>\nNumber of snakes in a pond = 3<br \/>\nNumber of snakes in a grass = 5<br \/>\nTotal number of snakes = Number of snakes in a pond + Number of snakes in a grass<br \/>\n= 3 + 5 = 8<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-28587\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Show-and-Grow3-1.png\" alt=\"\" width=\"634\" height=\"230\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Show-and-Grow3-1.png 634w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-LessonLesson-1.4-Show-and-Grow3-1-300x109.png 300w\" sizes=\"(max-width: 634px) 100vw, 634px\" \/><br \/>\nHence, Total number of snakes = 8.<\/p>\n<p>Question 4.<br \/>\n<strong>DIG DEEPER!<\/strong><br \/>\nNewton has 4 toy trucks. Some are red. The rest are blue. Write two different addition equations to describe his trucks.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21135\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-42.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 42\" width=\"474\" height=\"50\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-42.png 474w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-42-300x32.png 300w\" sizes=\"(max-width: 474px) 100vw, 474px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nEQUATION:1:<br \/>\nNumber of red trucks toys Newton has = 3<br \/>\nNumber of blue trucks toys Newton has = 1<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of toy trucks Newton has = Number of red trucks toys Newton has + Number of blue trucks toys Newton has<br \/>\n= 3 + 1 =4.<br \/>\nHence, total number of toy trucks Newton has = 4.<br \/>\nEQUATION:2:<br \/>\nNumber of red trucks toys Newton has = 2<br \/>\nNumber of blue trucks toys Newton has = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of toy trucks Newton has = Number of red trucks toys Newton has + Number of blue trucks toys Newton has<br \/>\n= 2 + 2 =4.<br \/>\nHence, total number of toy trucks Newton has = 4.<\/p>\n<p><strong>Think and Grow: Modeling Real Life<\/strong><\/p>\n<p>You have 7 ribbons. Some are blue. The rest are red. You have more blue ribbons than red ribbons. How many blue and red ribbons can you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21134\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-43.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 43\" width=\"93\" height=\"86\" \/><br \/>\n2 blue 5 red\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a04 blue 3 red<br \/>\n6 blue 1 red\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a03 blue 4 red<br \/>\nShow how you know:<br \/>\nAnswer:<br \/>\nTotal number of ribbons = 7.<br \/>\nSome are blue and rest are red.<br \/>\nBlue ribbons are more than red ribbons.<br \/>\nEXPLANATION:<br \/>\nGIVEN:<br \/>\n1. 2 blue 5 red<br \/>\nBlue ribbons are more than red balls.<br \/>\nNumber of blue ribbons are less than red.<br \/>\nHence, this case is not\u00a0 the correct count of ribbons.<br \/>\n2. \u00a04 blue 3 red<br \/>\nNumber of blue ribbons are more than red.<br \/>\nNumber of blue ribbons = 4<br \/>\nNumber of red ribbons = 3<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of ribbons = Number of blue ribbons + Number of red ribbons<br \/>\n= 4 + 3 = 7.<br \/>\nHence, this case is the correct count of ribbons.<br \/>\n3.6 blue 1 red<br \/>\nBlue ribbons are more than red balls.<br \/>\nNumber of blue ribbons are more than red.<br \/>\nNumber of blue ribbons = 6<br \/>\nNumber of red ribbons = 1<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of ribbons = Number of blue ribbons + Number of red ribbons<br \/>\n= 6 + 1 = 7.<br \/>\nHence, this case is the correct count of ribbons.<br \/>\n4. \u00a03 blue 4 red<br \/>\nNumber of blue ribbons are less than red.<br \/>\nSo, this case is not\u00a0 the correct count of ribbons.<br \/>\nHence, Total number of ribbons can be 4 blue 3 red if not 6 blue 1 red ball.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 5.<br \/>\nThere are lo kites. Some are green. The rest are yellow. There are more yellow kites than green kites. How many green and yellow kites can there be?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21133\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-44.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 44\" width=\"85\" height=\"121\" \/><br \/>\n4 green 6 yellow\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a06 green 4 yellow<br \/>\n5 green 5 yellow\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a03 green 7 yellow<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nTotal number of kites = 10.<br \/>\nSome are green and rest are yellow.<br \/>\nThere are more yellow kites than green kites.<br \/>\nEXPLANATION:<br \/>\n1. 4 green 6 yellow<br \/>\nThere are more yellow kites than green kites.<br \/>\nNumber of green kites = 4<br \/>\nNumber of yellow kites = 6<br \/>\nADDITION:<br \/>\nTotal number of kites = Number of green kites + Number of yellow kites<br \/>\n= 4 + 6 = 10.<br \/>\n2. \u00a06 green 4 yellow<br \/>\nHere, number of green kites are more than yellow kites. So, this cannot be the count of kites.<br \/>\n3. 5 green 5 yellow<br \/>\nHere, both the number of green and yellow kites are same. This means the condition given is not fulfilled. So, this cannot be the count of kites.<br \/>\n4. \u00a03 green 7 yellow<br \/>\nThere are more yellow kites than green kites.<br \/>\nNumber of green kites = 3<br \/>\nNumber of yellow kites = 7<br \/>\nADDITION:<br \/>\nTotal number of kites = Number of green kites + Number of yellow kites<br \/>\n= 3 + 7 = 10.<br \/>\nHence, the total number of kites can be 4 green 6 yellow or 3 green 7 yellow kites.<\/p>\n<h3><a id=\"Solve_Put_Together_Problems_with_Both_Addends_Unknown_Practice_1.4\"><\/a>Solve Put Together Problems with Both Addends Unknown Practice 1.4<\/h3>\n<p>Question 1.<br \/>\nThere are 6 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21131\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-45.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 45\" width=\"44\" height=\"35\" \/> Some are on a hill. Some more are in the grass. Draw the <img loading=\"lazy\" class=\"alignnone size-full wp-image-21131\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-45.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 45\" width=\"44\" height=\"35\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21130\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-46.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 46\" width=\"276\" height=\"163\" \/><\/p>\n<p>_____________ = ____________ + ____________<br \/>\nAnswer:<br \/>\nNumber of ants on hill = 4<br \/>\nNumber of ants in the grass = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of ants = Number of ants on hill + Number of ants in the grass<br \/>\n= 4 + 2 = 6<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-28555\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-with-Both-Addends-Unknown-Practice-1.4.1..png\" alt=\"\" width=\"326\" height=\"217\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-with-Both-Addends-Unknown-Practice-1.4.1..png 326w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-with-Both-Addends-Unknown-Practice-1.4.1.-300x200.png 300w\" sizes=\"(max-width: 326px) 100vw, 326px\" \/><br \/>\nHence,\u00a0 Total number of ants = 6.<\/p>\n<p>Question 2.<br \/>\nThere are 8<img loading=\"lazy\" class=\"alignnone size-full wp-image-21129\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-47.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 47\" width=\"45\" height=\"36\" \/> Some are in the water. Some more are on the dirt. Draw the <img loading=\"lazy\" class=\"alignnone size-full wp-image-21129\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-47.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 47\" width=\"45\" height=\"36\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21128\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-48.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 48\" width=\"278\" height=\"164\" \/><br \/>\n_____________ = ____________ + ____________<br \/>\nAnswer:<br \/>\nNumber of frogs in the water = 3<br \/>\nNumber of frogs on the dirt = 5<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of frogs = Number of frogs in the water+ Number of frogs on the dirt<br \/>\n= 3 + 5 = 8<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-28586\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-with-Both-Addends-Unknown-Practice-1.4.2..png\" alt=\"\" width=\"328\" height=\"224\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-with-Both-Addends-Unknown-Practice-1.4.2..png 328w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-with-Both-Addends-Unknown-Practice-1.4.2.-300x205.png 300w\" sizes=\"(max-width: 328px) 100vw, 328px\" \/><br \/>\nHence, Total number of frogs = 8.<br \/>\nQuestion 3.<br \/>\nThere are 5<img loading=\"lazy\" class=\"alignnone size-full wp-image-21127\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-49.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 49\" width=\"28\" height=\"30\" \/> . Some are inside a bin. Some more are outside the bin. Draw two different pictures to show the <img loading=\"lazy\" class=\"alignnone size-full wp-image-21127\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-49.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 49\" width=\"28\" height=\"30\" \/> .<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21126\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-50-1.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 50\" width=\"541\" height=\"183\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-50-1.png 541w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-50-1-300x101.png 300w\" sizes=\"(max-width: 541px) 100vw, 541px\" \/><br \/>\nAnswer:<br \/>\nPICTURE:1:<br \/>\nNumber of balls are inside a bin = 1<br \/>\nNumber of balls are outside the bin = 4<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of balls = Number of balls are inside a bin + Number of balls are outside the bin<br \/>\n= 1 + 4<br \/>\n=5<br \/>\nPICTURE:2:<br \/>\nNumber of balls are inside a bin = 2<br \/>\nNumber of balls are outside the bin = 3<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of balls = Number of balls are inside a bin + Number of balls are outside the bin<br \/>\n= 2 + 3<br \/>\n= 5<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-28589\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-with-Both-Addends-Unknown-Practice-1.4.3..png\" alt=\"\" width=\"606\" height=\"168\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-with-Both-Addends-Unknown-Practice-1.4.3..png 606w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-with-Both-Addends-Unknown-Practice-1.4.3.-300x83.png 300w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><br \/>\nHence, total number of balls = 5.<\/p>\n<p>Question 4.<br \/>\n<strong>Modeling Real Life<\/strong><br \/>\nYou have 9 hats. Some are blue. The rest are red. You have more red hats than blue hats. How many red and blue hats can you have?<br \/>\n4 red 5 blue 6 red 3 blue<br \/>\n3 red 6 blue 7 red 2 blue<br \/>\nShow how you know:<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of hats = 9<br \/>\nSome are blue. The rest are red.<br \/>\nYou have more red hats than blue hats.<br \/>\nEXPLANATION:<br \/>\n1. 4 red 5 blue<br \/>\nHere, red are less than blue hats. So, this are not the count of hats.<br \/>\n2. 6 red 3 blue<br \/>\nHere, red are more than blue hats.<br \/>\nNumber of red hats = 6<br \/>\nNumber of blue hats = 3<br \/>\nADDITION:<br \/>\nTotal number of hats =\u00a0 Number of red hats + Number of blue hats<br \/>\n= 6 + 3 = 9<br \/>\n3. 3 red 6 blue<br \/>\nHere, red are less than blue hats. So, this are not the count of hats.<br \/>\n4.\u00a0 7 red 2 blue<br \/>\nHere, red are more than blue hats.<br \/>\nNumber of red hats = 6<br \/>\nNumber of blue hats = 3<br \/>\nADDITION:<br \/>\nTotal number of hats =\u00a0 Number of red hats + Number of blue hats<br \/>\n= 6 + 3 = 9<br \/>\nHence, Total number of hats can be 6 red 3 blue or 7 red 2 blue.<\/p>\n<p><strong>Review &amp; Refresh<\/strong><\/p>\n<p>Use the picture to write a subtraction sentence.<\/p>\n<p>Question 5.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21124\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-51.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 51\" width=\"178\" height=\"110\" \/><br \/>\n___________ &#8211; ___________ = _____________<br \/>\nAnswer:<br \/>\nNumber of sea horse in first row = 4<br \/>\nNumber of sea horse in second row = 4<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nDifference in the rows = Number of sea horse in first row &#8211; Number of sea horse in second row<br \/>\n= 4 &#8211; 4 = 0<br \/>\nHence, Difference in the rows = 0.<\/p>\n<p>Question 6.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21123\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-52.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 52\" width=\"252\" height=\"125\" \/><br \/>\n___________ &#8211; ___________ = _____________<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nNumber of dolphins left side in the picture = 6<br \/>\nNumber of dolphins right side in the picture = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nDifference in the dolphins in both the sides of the picture = Number of dolphins left side in the picture &#8211; Number of dolphins right side in the picture<br \/>\n= 6 &#8211; 3\u00a0 = 3<br \/>\nHence, Difference in the dolphins in both the sides of the picture = 3.<\/p>\n<h3><a id=\"Lesson_1.5_Solve_Take_From_Problems\"><\/a>Lesson 1.5 Solve Take From Problems<\/h3>\n<p><strong>Explore and Grow<\/strong><\/p>\n<p>Use linking cubes to model the story.<\/p>\n<p>There are 6 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21223\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-53.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 53\" width=\"36\" height=\"42\" \/> 3 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21223\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-53.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 53\" width=\"36\" height=\"42\" \/> hop away How many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21223\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-53.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 53\" width=\"36\" height=\"42\" \/> are left.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21222\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-54.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 54\" width=\"497\" height=\"471\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-54.png 497w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-54-300x284.png 300w\" sizes=\"(max-width: 497px) 100vw, 497px\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nTotal number of rabbits = 6<br \/>\nNumber of rabbits left away = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of rabbits left = Total number of rabbits &#8211; Number of rabbits left away<br \/>\n= 6 &#8211; 3 = 3<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-28599\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.5-Solve-Take-From-Problems.png\" alt=\"\" width=\"337\" height=\"130\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.5-Solve-Take-From-Problems.png 337w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.5-Solve-Take-From-Problems-300x116.png 300w\" sizes=\"(max-width: 337px) 100vw, 337px\" \/><br \/>\nHence, Number of rabbits left = 3.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 1.<br \/>\nThere are 6 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21220\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-55.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 55\" width=\"39\" height=\"46\" \/>.<br \/>\n2 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21220\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-55.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 55\" width=\"39\" height=\"46\" \/> jump away.<br \/>\nHow many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21220\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-55.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 55\" width=\"39\" height=\"46\" \/> are left?<br \/>\nSubtraction equation:<br \/>\n___________ &#8211; __________ = __________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21220\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-55.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 55\" width=\"39\" height=\"46\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nTotal number of monkeys = 6<br \/>\nNumber of monkeys jump away = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of monkeys left = Total number of monkeys &#8211; Number of monkeys jump away<br \/>\n= 6 &#8211; 3 = 3<br \/>\nHence,\u00a0 Number of monkeys left = 3.<\/p>\n<p>Question 2.<br \/>\nThere are 8 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21219\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-56.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 56\" width=\"20\" height=\"38\" \/>.<br \/>\nA monkey eats 5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21219\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-56.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 56\" width=\"20\" height=\"38\" \/><br \/>\nHow many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21219\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-56.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 56\" width=\"20\" height=\"38\" \/> are left?<br \/>\nSubtraction equation:<br \/>\n___________ &#8211; __________ = __________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21219\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-56.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 56\" width=\"20\" height=\"38\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nTotal number of bananas = 8<br \/>\nNumber of bananas monkey ate = 5<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of bananas left = Total number of bananas &#8211; Number of bananas monkey ate<br \/>\n= 8 &#8211; 5 = 3<br \/>\nHence, Number of bananas left = 3.<\/p>\n<p><strong>Apply and Grow: Practice<\/strong><\/p>\n<p>Question 3.<br \/>\nThere are 7 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21217\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-57.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 57\" width=\"37\" height=\"34\" \/>.<br \/>\n3 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21217\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-57.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 57\" width=\"37\" height=\"34\" \/> walk away.<br \/>\nHow many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21217\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-57.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 57\" width=\"37\" height=\"34\" \/> are left?<br \/>\n___________ &#8211; __________ = __________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21217\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-57.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 57\" width=\"37\" height=\"34\" \/><br \/>\nAnswer:<br \/>\nTotal number of ants = 7<br \/>\nNumber of ants ran away = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of ants left =\u00a0 Total number of ants &#8211; Number of ants ran away<br \/>\n= 7 &#8211; 3 = 4<br \/>\nHence, Number of ants left = 4.<\/p>\n<p>Question 4.<br \/>\nThere are 8 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21216\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-58.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 58\" width=\"33\" height=\"29\" \/><br \/>\n6 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21216\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-58.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 58\" width=\"33\" height=\"29\" \/> fly away.<br \/>\nHow many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21216\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-58.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 58\" width=\"33\" height=\"29\" \/> are left?<br \/>\n___________ &#8211; __________ = __________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21216\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-58.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 58\" width=\"33\" height=\"29\" \/><br \/>\nAnswer:<br \/>\nTotal number of birds = 8<br \/>\nNumber of birds flew = 6<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of birds left = Total number of birds &#8211; Number of birds flew<br \/>\n= 8 &#8211; 6 = 2.<br \/>\nHence, Number of birds left = 2.<\/p>\n<p>Question 5.<br \/>\n10 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21215\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-59.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 59\" width=\"29\" height=\"32\" \/> play.<br \/>\n5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21215\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-59.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 59\" width=\"29\" height=\"32\" \/> run away.<br \/>\nHow many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21215\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-59.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 59\" width=\"29\" height=\"32\" \/> are left?<br \/>\n___________ &#8211; __________ = __________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21215\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-59.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 59\" width=\"29\" height=\"32\" \/><br \/>\nAnswer:<br \/>\nTotal number of cats = 10<br \/>\nNumber of cats run cats = 5<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of cats left = Total number of cats\u00a0 &#8211; Number of cats run cats<br \/>\n= 10 &#8211; 5 = 5<br \/>\nHence, Number of cats left = 5.<\/p>\n<p>Question 6.<br \/>\n<strong>MP Precision<\/strong><br \/>\nFind the difference. Draw a picture to match.<br \/>\n7 &#8211; 4 = ______<br \/>\nAnswer:<br \/>\n7 &#8211; 4 = 3<br \/>\nEXPLANATION:<br \/>\nOut of 7 blocks remove 4 blocks = ????<br \/>\nDIFFERENCE<br \/>\n7 &#8211; 4 = 3<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-28600\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-MP-Precision6..png\" alt=\"\" width=\"377\" height=\"156\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-MP-Precision6..png 377w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-MP-Precision6.-300x124.png 300w\" sizes=\"(max-width: 377px) 100vw, 377px\" \/><br \/>\nHence, picture is drawn.<\/p>\n<p><strong>Think and Grow: Modeling Real Life<\/strong><\/p>\n<p>7 students play tag.<br \/>\n2 of them leave.<br \/>\nHow many students are left?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21214\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-60.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 60\" width=\"151\" height=\"95\" \/><br \/>\nWhich equation matches the story?<br \/>\n9 &#8211; 7 = 2<br \/>\n7 &#8211; 2 = 5<br \/>\n7 &#8211; 5 = 2<br \/>\nShow how you know:<\/p>\n<p>&nbsp;<\/p>\n<p>____ students are left.<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nTotal number of students playing tag = 7<br \/>\nNumber of students left away = 2<br \/>\nEXPLANATION:<br \/>\nNumber of students left = Total number of students playing tag &#8211; Number of students left away<br \/>\n= 7 &#8211; 2 = 5<br \/>\nHence, Number of students left = 2<br \/>\nEQUATION matching the answer = 7 &#8211; 2 = 5 not others 9 &#8211; 7=2 nor 7 &#8211; 5 = 2.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 7.<br \/>\nYou have 9 coins. You give 3 coins away. How many coins are left?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21213\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-61.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 61\" width=\"105\" height=\"82\" \/><br \/>\nWhich equation matches the story?<br \/>\n9 &#8211; 3 = 6<br \/>\n6 &#8211; 3 = 3<br \/>\nShow how you know:<\/p>\n<p>&nbsp;<\/p>\n<p>____ coins are left.<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nTotal number of coins = 9<br \/>\nNumber of coins\u00a0 given away = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of coins left = Total number of coins &#8211; Number of coins\u00a0 given away<br \/>\n= 9 &#8211; 3<br \/>\n= 6<br \/>\nHence, Number of coins left = 6.<br \/>\nEQUATION matching the story is 9 &#8211; 3 = 6 not 6 &#8211; 3 = 3.<\/p>\n<h3><a id=\"Solve_Take_From_Problems_Practice_1.5\"><\/a>Solve Take From Problems Practice 1.5<\/h3>\n<p>Question 1.<br \/>\nThere are 5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21212\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-62.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 62\" width=\"32\" height=\"28\" \/><br \/>\n3 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21212\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-62.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 62\" width=\"32\" height=\"28\" \/> leave.<br \/>\nHow many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21212\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-62.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 62\" width=\"32\" height=\"28\" \/> are left?<br \/>\n___________ &#8211; __________ = __________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21212\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-62.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 62\" width=\"32\" height=\"28\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nTotal number of tigers = 5<br \/>\nNumber of tigers left away= 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of tigers left = Total number of tigers &#8211; Number of tigers left away<br \/>\n= 5 &#8211; 3<br \/>\n= 2<br \/>\nHence, Number of tigers left = 2.<\/p>\n<p>Question 2.<br \/>\nThere are 7 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21211\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-63.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 63\" width=\"33\" height=\"22\" \/>.<br \/>\nA cat eats 5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21211\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-63.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 63\" width=\"33\" height=\"22\" \/>.<br \/>\nHow many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21211\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-63.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 63\" width=\"33\" height=\"22\" \/> are left?<br \/>\n___________ &#8211; __________ = __________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21211\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-63.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 63\" width=\"33\" height=\"22\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nTotal number of fishes = 7<br \/>\nNumber of fishes cat ate = 5<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fishes left =\u00a0 Total number of fishes &#8211; Number of fishes cat ate<br \/>\n= 7 &#8211; 5<br \/>\n= 2.<br \/>\nHence, Number of fishes left = 2.<\/p>\n<p>Question 3.<br \/>\nYou have 10 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21210\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-64.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 64\" width=\"26\" height=\"31\" \/>.<br \/>\nYou give away 10 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21210\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-64.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 64\" width=\"26\" height=\"31\" \/>.<br \/>\nHow many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21210\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-64.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 64\" width=\"26\" height=\"31\" \/> do you have left?<br \/>\n___________ &#8211; __________ = __________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21210\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-64.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 64\" width=\"26\" height=\"31\" \/><br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nTotal number of balls = 10<br \/>\nNumber of balls given away = 10<br \/>\nEXPLANATION:<br \/>\nNumber of balls left = Total number of balls &#8211; Number of balls given away<br \/>\n= 10 &#8211; 10<br \/>\n= 0<br \/>\nHence, Number of balls left = 0.<\/p>\n<p>Question 4.<br \/>\n<strong>MP Precision<\/strong><br \/>\nFind the difference. Draw a picture to match.<br \/>\n8 &#8211; 2 = _______<br \/>\nAnswer:<br \/>\n8 &#8211; 2 = 6<br \/>\nEXPLANATION:<br \/>\nOut of 8 blocks remove 2 blocks = ????<br \/>\nDifference:<br \/>\n8 &#8211; 2 = 6<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-28611\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Take-From-Problems-Practice-1.5.4..png\" alt=\"\" width=\"438\" height=\"159\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Take-From-Problems-Practice-1.5.4..png 438w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Take-From-Problems-Practice-1.5.4.-300x109.png 300w\" sizes=\"(max-width: 438px) 100vw, 438px\" \/><br \/>\nHence, picture is drawn.<\/p>\n<p>Question 5.<br \/>\nModeling Real Life<br \/>\n6 students play soccer. 4 of them leave. How many students are left?<\/p>\n<p>Which equation matches the story?<br \/>\n6 &#8211; 2 = 4<br \/>\n8 &#8211; 6 = 2<br \/>\n6 &#8211; 4 = 2<br \/>\nShow how you know:<\/p>\n<p>____ students are left.<br \/>\nAnswer:<br \/>\nGIVEN:<br \/>\nTotal number of students playing soccer = 6<br \/>\nNumber of students left away the soccer = 4<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of students left in the game = Total number of students playing soccer &#8211; Number of students left away the soccer<br \/>\n=6 &#8211; 4<br \/>\n=2<br \/>\nHence, Equation matches our story is 6 &#8211; 4 = 2 not other 6 &#8211; 2 = 4, 8 &#8211; 6 = 2.<\/p>\n<p><strong>Review &amp; Refresh<\/strong><\/p>\n<p>Question 6.<br \/>\nWrite the numbers of dogs and bones. Circle the number that is greater than the other number.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21209\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-65.png\" alt=\"Big Ideas Math Answers 1st Grade 1 Chapter 1 Addition and Subtraction Situations 65\" width=\"551\" height=\"178\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-65.png 551w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-1st-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-65-300x97.png 300w\" sizes=\"(max-width: 551px) 100vw, 551px\" \/><br \/>\nAnswer:<br \/>\n<img src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.5-Review-Refresh6-1.png\" \/><br \/>\nGIVEN:<br \/>\nNumber of dogs = 7<br \/>\nNumber of dog bones = 10<br \/>\nEXPLANATION:<br \/>\nCOMPARISION:<br \/>\nNumber of dogs : Number of dog bones<br \/>\n=&gt; <img loading=\"lazy\" class=\"alignnone size-full wp-image-28613\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.5-Review-Refresh6-1.png\" alt=\"\" width=\"219\" height=\"107\" \/><br \/>\nHence, comparison is done and greater number is also marked circle.<\/p>\n<h3><a id=\"Lesson_1.6_Solve_Compare_Problems:_More\"><\/a>Lesson 1.6 Solve Compare Problems: More<\/h3>\n<p><strong>Explore and Grow<\/strong><\/p>\n<p>Use counters to model the story.<\/p>\n<p>Newton has 4 apples. Descartes has 6 apples. Who has more apples? How many more?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21367\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-66.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 66\" width=\"444\" height=\"461\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-66.png 444w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-66-289x300.png 289w\" sizes=\"(max-width: 444px) 100vw, 444px\" \/><br \/>\nAnswer:<br \/>\nNumber of apples Descartes has more than Number of apples Newton has.<br \/>\nTherefore, Descartes has 2 apples more than Newton has.<br \/>\nGIVEN:<br \/>\nNumber of apples Newton has = 4<br \/>\nNumber of apples Descartes has = 6<br \/>\nSUBTRACTION:<br \/>\nNumber of apples who has more = Number of apples Descartes has\u00a0 &#8211; Number of apples Newton has<br \/>\n= 6 &#8211; 4<br \/>\n=2<br \/>\nHence, Number of apples Descartes has more than Number of apples Newton has.<br \/>\nTherefore, Descartes has 2 apples more than Newton has.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 1.<br \/>\nYou have 7 books. Your friend has 3 books. How many more books do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21366\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-67.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 67\" width=\"308\" height=\"114\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-67.png 308w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-67-300x111.png 300w\" sizes=\"(max-width: 308px) 100vw, 308px\" \/><br \/>\nSubtraction equation: _________ &#8211; _________ = __________ more books<br \/>\nAnswer:<br \/>\nI am having 4 books more than my friend has.<br \/>\nGIVEN:<br \/>\nNumber of books I have = 7<br \/>\nNumber of books my friend has = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of books who has more = Number of books I have &#8211; Number of books my friend has<br \/>\n= 7 &#8211; 3<br \/>\n= 4<br \/>\nHence, \u00a0I am having 4 books more than my friend has.<\/p>\n<p><strong>Apply and Grow: Practice<\/strong><\/p>\n<p>Question 2.<br \/>\nYour friend has 6 crayons. You have 3 crayons. How many more crayons does your friend have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21365\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-68.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 68\" width=\"194\" height=\"148\" \/><br \/>\n_________ &#8211; _________ = __________ more crayons<br \/>\nAnswer:<br \/>\nMy friend has 3 crayons more than me.<br \/>\nGIVEN:<br \/>\nNumber of crayons my friend has = 6<br \/>\nNumber of crayons I am having = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of crayons who has more by = Number of crayons my friend has &#8211; Number of crayons I am having<br \/>\n= 6 &#8211; 3<br \/>\n= 3<br \/>\nHence, my friend has 3 crayons more than me.<\/p>\n<p>Question 3.<br \/>\nThere are 9 purple flowers and 5 yellow flowers. Draw the missing flowers. How many more purple flowers are there?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21364\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-69.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 69\" width=\"386\" height=\"43\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-69.png 386w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-69-300x33.png 300w\" sizes=\"(max-width: 386px) 100vw, 386px\" \/><br \/>\n_________ &#8211; _________ = __________ more purple flowers<br \/>\nAnswer:<br \/>\nPurples\u00a0 flowers are 4 more than the yellow flowers.<br \/>\nGIVEN:<br \/>\nNumber of purple flowers = 9<br \/>\nNumber of yellow flowers = 5<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nDifference in the flowers = Number of purple flowers &#8211; Number of yellow flowers<br \/>\n= 9 &#8211; 5<br \/>\n=4.<br \/>\nPICTURE:<br \/>\nMISSING FLOWERS are 5 yellow flowers. Picture is below:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29045\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Solve-Compare-Problems-More-Show-and-Grow3.png\" alt=\"\" width=\"468\" height=\"121\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Solve-Compare-Problems-More-Show-and-Grow3.png 468w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Solve-Compare-Problems-More-Show-and-Grow3-300x78.png 300w\" sizes=\"(max-width: 468px) 100vw, 468px\" \/><br \/>\nHence, purples\u00a0 flowers are 4 more than the yellow flowers.<\/p>\n<p>Question 4.<br \/>\nYou have 2 yellow buckets. Your friend has 6 blue buckets. Draw the missing buckets. How many more buckets does your friend have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21363\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-70.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 70\" width=\"141\" height=\"67\" \/><br \/>\n_________ &#8211; _________ = __________ more buckets<br \/>\nAnswer:<br \/>\nNumber of more buckets\u00a0 my friend having than me are 4 blue buckets.<br \/>\nGIVEN:<br \/>\nNumber of yellow buckets I am having = 2<br \/>\nNumber of blue buckets my friend having = 6<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of more buckets does my friend having = Number of yellow buckets I am having &#8211; Number of blue buckets my friend having<br \/>\n= 6 &#8211; 2<br \/>\n= 4<br \/>\nPICTURE:<br \/>\nMISSING BUCKETS are 6 blue buckets. Picture is below:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29054\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Solve-Compare-Problems-More-Show-and-Grow4.png\" alt=\"\" width=\"464\" height=\"232\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Solve-Compare-Problems-More-Show-and-Grow4.png 464w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Solve-Compare-Problems-More-Show-and-Grow4-300x150.png 300w\" sizes=\"(max-width: 464px) 100vw, 464px\" \/><br \/>\nHence, Number of more buckets\u00a0 my friend having than me are 4 blue buckets.<\/p>\n<p><strong>Think and Grow: Modeling Real Life<\/strong><\/p>\n<p>You have 2 dog puppets. You have more cat puppets than dog puppets. How many more cat puppets do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21362\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-71.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 71\" width=\"143\" height=\"120\" \/><br \/>\nDraw a picture:<\/p>\n<p>&nbsp;<\/p>\n<p>Subtraction equation:<\/p>\n<p>___________ more cat puppets<br \/>\nAnswer:<br \/>\nCats are 1 more than dog puppets<br \/>\nGIVEN:<br \/>\nNumber of dog puppets\u00a0 = 2<br \/>\nYou have more cat puppets than dog puppets.<br \/>\n=&gt; Number of cat puppets\u00a0 = 3<\/p>\n<p>PICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29061\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Think-and-Grow-Modeling-Real-Life.png\" alt=\"\" width=\"252\" height=\"204\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>EXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of cats more than dog puppets = Number of cat puppets\u00a0 &#8211; Number of dog puppets<br \/>\n= 3 &#8211; 2<br \/>\n=1<br \/>\nHence, cats are 1 more than dog puppets.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 5.<br \/>\nYou have 9 toy cars. You have more cars than trucks. How many more cars do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21361\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-72.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 72\" width=\"89\" height=\"95\" \/><br \/>\nDraw a picture:<\/p>\n<p>&nbsp;<\/p>\n<p>Subtraction equation:<\/p>\n<p>&nbsp;<\/p>\n<p>__________ more toy cars<br \/>\nAnswer:<br \/>\nNumber of toy cars more than trucks = 1.<br \/>\nGIVEN:<br \/>\nNumber of toy cars = 9<br \/>\nYou have more cars than trucks.<br \/>\n=&gt; Number of trucks = 8<\/p>\n<p>PICTURE: MISSING TOYS are 8 trucks.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29069\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Show-and-Grow5-1.png\" alt=\"\" width=\"649\" height=\"182\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Show-and-Grow5-1.png 649w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Show-and-Grow5-1-300x84.png 300w\" sizes=\"(max-width: 649px) 100vw, 649px\" \/><br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of toy cars more than trucks =Number of toy cars &#8211;\u00a0 Number of trucks<br \/>\n= 9 &#8211; 8<br \/>\n= 1<br \/>\nHence, Number of toy cars more than trucks = 1.<\/p>\n<h3><a id=\"Solve_Compare_Problems:_More_Practice_1.6\"><\/a>Solve Compare Problems: More Practice 1.6<\/h3>\n<p>Question 1.<br \/>\nThere are 4 blue scarves and 3 green scarves. How many more blue scarves are there?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21360\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-73.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 73\" width=\"208\" height=\"111\" \/><br \/>\n____________ &#8211; ____________ = ___________ more blue scarf<br \/>\nAnswer:<br \/>\nThere are blue scarfs 1 more than red scarfs.<br \/>\nGIVEN:<br \/>\nNumber of blue scarves = 4<br \/>\nNumber of green scarves = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nDifference in the scarves = Number of blue scarves &#8211; Number of green scarves<br \/>\n= 4 &#8211; 3<br \/>\n= 1<br \/>\nHence, there are blue scarfs 1 more than red scarfs.<\/p>\n<p>Question 2.<br \/>\nYou have 6 strawberries and 2 blueberries. Draw the missing fruit. How many more strawberries do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21359\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-74.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 74\" width=\"268\" height=\"40\" \/><br \/>\n____________ &#8211; ____________ = ___________ more straw berries<br \/>\nAnswer:<br \/>\nThere are 4 strawberries more than blue berries.<br \/>\nGIVEN:<br \/>\nNumber of strawberries = 6<br \/>\nNumber of\u00a0 blueberries = 2<br \/>\nPICTURE:<br \/>\nMISSING FRUITS are 2 blueberries.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29084\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Solve-Compare-Problems-More-Practice-2..png\" alt=\"\" width=\"342\" height=\"142\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Solve-Compare-Problems-More-Practice-2..png 342w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Solve-Compare-Problems-More-Practice-2.-300x125.png 300w\" sizes=\"(max-width: 342px) 100vw, 342px\" \/><\/p>\n<p>EXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nDifference in the berries = Number of strawberries &#8211; Number of\u00a0 blueberries<br \/>\n= 6 &#8211; 2<br \/>\n= 4<br \/>\nHence, there are 4 strawberries more than blue berries.<\/p>\n<p>Question 3.<br \/>\nYou have 2 blue towels. Your friend has 7 red towels. Draw the missing towels. How many more towels does your friend have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21358\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-75.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 75\" width=\"147\" height=\"44\" \/><br \/>\n____________ &#8211; ____________ = ___________ more towels<br \/>\nAnswer:<br \/>\nMy friend has 5 red towels more than me.<br \/>\nGIVEN:<br \/>\nNumber of blue towels I have = 2<br \/>\nNumber of red towels my friend has = 7<br \/>\nPICTURE: MISSING TOWELS are 7 red towels.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-29088\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Solve-Compare-Problems-More-Practice-3..png\" alt=\"\" width=\"273\" height=\"206\" \/><\/p>\n<p>EXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nDifference in the towels between me and my friend = Number of red towels my friend has &#8211; Number of blue towels I have<br \/>\n= 7 &#8211; 2<br \/>\n= 5<br \/>\nHence, my friend has 5 red towels more than me.<\/p>\n<p>Question 4.<br \/>\n<strong>Modeling Real Life<\/strong><br \/>\nYou have 3 toy bears. You have more yo-yos than toy bears. How many more yo-yos do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21357\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-76.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 76\" width=\"592\" height=\"206\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-76.png 592w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-76-300x104.png 300w\" sizes=\"(max-width: 592px) 100vw, 592px\" \/><br \/>\nAnswer:<br \/>\nThere are 2 yo-yos more than toy bears.<br \/>\nGIVEN:<br \/>\nNumber of toy bears = 3<br \/>\nYou have more yo-yos than toy bears.<br \/>\nNumber of yo-yos = 5<br \/>\nPICTURE: MISSING\u00a0 TOYS are 5 yo-yos. Picture is below:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29091\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Modeling-Real-Life..png\" alt=\"\" width=\"290\" height=\"291\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Modeling-Real-Life..png 290w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Modeling-Real-Life.-150x150.png 150w\" sizes=\"(max-width: 290px) 100vw, 290px\" \/><br \/>\nEXPLANATION:<br \/>\nDifference in the toys = Number of yo-yos &#8211; Number of toy bears<br \/>\n= 5 &#8211; 3<br \/>\n= 2<br \/>\nHence, there are 2 yo-yos more than toy bears.<\/p>\n<p><strong>Review &amp; Refresh<\/strong><\/p>\n<p>Question 5.<br \/>\nWrite the number of each type of sea creature. Draw a line through the number that is less than the other number.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21356\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-77.png\" alt=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations 77\" width=\"505\" height=\"127\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-77.png 505w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answers-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-77-300x75.png 300w\" sizes=\"(max-width: 505px) 100vw, 505px\" \/><br \/>\nAnswer:<br \/>\nThere are 2 jelly fishes more than star fishes.<br \/>\nGIVEN:<br \/>\nNumber of star fish = 3<!--more-->Number of jelly fish = 5<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nDifference in the fishes = Number of jelly fish\u00a0 &#8211; Number of star fish<br \/>\n= 5 &#8211; 3<br \/>\n=2<br \/>\nHence, there are 2 jelly fishes more than star fishes.<\/p>\n<h3><a id=\"Lesson_1.7_Solve_Compare_Problems:_Fewer\"><\/a>Lesson 1.7 Solve Compare Problems: Fewer<\/h3>\n<p><strong>Explore and Grow<\/strong><\/p>\n<p>Use counters to model the story.<br \/>\nNewton has 7 games. Descartes has 5 games. Who has fewer games? How many fewer?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21637\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-78.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 78\" width=\"447\" height=\"465\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-78.png 447w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-78-288x300.png 288w\" sizes=\"(max-width: 447px) 100vw, 447px\" \/><br \/>\nAnswer:<br \/>\nDescartes has 2 games less than Newton has.<br \/>\nGIVEN:<br \/>\nNumber of games Newton has = 7<br \/>\nNumber of games Descartes has = 5<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of games who has more =\u00a0 Number of games Newton has &#8211; Number of games Descartes has<br \/>\n= 7- 5<br \/>\n= 2<br \/>\nNewton has more games than Descartes has.<br \/>\nDescartes has less\u00a0 games\u00a0 than Newton has.<br \/>\nHence, Descartes has 2 games less than Newton has.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 1.<br \/>\nThere are 2 green pinwheels and 8 yellow pinwheels. How many fewer green pinwheels are there?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21636\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-79.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 79\" width=\"339\" height=\"124\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-79.png 339w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-79-300x110.png 300w\" sizes=\"(max-width: 339px) 100vw, 339px\" \/><br \/>\nSubtraction equation: ___________ &#8211; __________ = ____________ fewer green pinwheels<br \/>\nAnswer:<br \/>\nThere are 6 green pinwheels.<br \/>\nGIVEN:<br \/>\nNumber of green pinwheels = 2<br \/>\nNumber of yellow pinwheels = 8<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nDifference in the pinwheels = Number of yellow pinwheels &#8211; Number of green pinwheels<br \/>\n= 8 &#8211; 2<br \/>\n= 6.<br \/>\nHence, there are 6 green pinwheels.<\/p>\n<p>Question 2.<br \/>\nYou have 3 key chains. Your friend has 7 key chains. How many fewer key chains do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21635\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-80.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 80\" width=\"341\" height=\"155\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-80.png 341w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-80-300x136.png 300w\" sizes=\"(max-width: 341px) 100vw, 341px\" \/><br \/>\n___________ &#8211; __________ = ____________ fewer key chains<br \/>\nAnswer:<br \/>\nNumber of fewer key chains I have are 4.<br \/>\nGIVEN:<br \/>\nNumber of key chains I have = 3<br \/>\nNumber of key chains my friend has = 7<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fewer key chains I have = Number of key chains my friend has &#8211; Number of key chains I have<br \/>\n= 7 &#8211; 3<br \/>\n= 4<br \/>\nHence, number of fewer key chains I have are 4.<\/p>\n<p>Question 3.<br \/>\nThere are 6 brown horses and 10 gray horses. Draw the missing horses. How many fewer brown horses are there?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21634\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-81.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 81\" width=\"291\" height=\"51\" \/><br \/>\n___________ &#8211; __________ = ____________ fewer brown horses<br \/>\nAnswer:<br \/>\nNumber of fewer brown horses = 4.<br \/>\nGIVEN:<br \/>\nNumber of brown horses = 6<br \/>\nNumber of gray horses = 10<br \/>\nPICTURE: MISSING HORSES are 10 gray horses.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29142\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Show-and-Grow3.png\" alt=\"\" width=\"371\" height=\"200\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Show-and-Grow3.png 371w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Show-and-Grow3-300x162.png 300w\" sizes=\"(max-width: 371px) 100vw, 371px\" \/><br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fewer brown horses = Number of gray horses &#8211; Number of brown horses<br \/>\n= 10 &#8211; 6<br \/>\n= 4<br \/>\nHence, number of fewer brown horses = 4.<\/p>\n<p>Question 4.<br \/>\nYou have 8 red trains. Your friend has 5 orange trains. Draw the missing trains. How many fewer trains does your friend have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21633\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-82.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 82\" width=\"364\" height=\"41\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-82.png 364w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-82-300x34.png 300w\" sizes=\"(max-width: 364px) 100vw, 364px\" \/><br \/>\n___________ &#8211; __________ = ____________ fewer trains<br \/>\nAnswer:<br \/>\nNumber of fewer trains my friend has = 3.<br \/>\nGIVEN:<br \/>\nNumber of red trains I have= 8<br \/>\nNumber of orange trains my friend has = 5<br \/>\nPICTURE: MISSING TRAINS are 5 orange train.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29147\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Show-and-Grow4.png\" alt=\"\" width=\"408\" height=\"118\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Show-and-Grow4.png 408w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.6-Show-and-Grow4-300x87.png 300w\" sizes=\"(max-width: 408px) 100vw, 408px\" \/><br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fewer trains my friend has = Number of red trains I have &#8211; Number of orange trains my friend has<br \/>\n= 8 &#8211; 5<br \/>\n= 3<br \/>\nHence, number of fewer trains my friend has = 3.<\/p>\n<p><strong>Think and Grow: Modeling Real Life<\/strong><\/p>\n<p>There are 10 hens. There are fewer chicks than hens. How many fewer chicks are there?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21632\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-83.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 83\" width=\"133\" height=\"120\" \/><br \/>\nDraw a picture:<\/p>\n<p>&nbsp;<\/p>\n<p>Subtraction equation:<\/p>\n<p>&nbsp;<\/p>\n<p>________ fewer chicks<br \/>\nAnswer:<br \/>\nNumber of fewer chicks = 3.<br \/>\nGIVEN:<br \/>\nNumber of hens = 10<br \/>\nThere are fewer chicks than hens.<br \/>\n=&gt; Number of chicks = 7<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29166\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.7.Think-and-Grow-Modeling-Real-Life.png\" alt=\"\" width=\"635\" height=\"247\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.7.Think-and-Grow-Modeling-Real-Life.png 635w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.7.Think-and-Grow-Modeling-Real-Life-300x117.png 300w\" sizes=\"(max-width: 635px) 100vw, 635px\" \/><\/p>\n<p>EXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fewer chicks = Number of hens &#8211; Number of chicks<br \/>\n= 10 &#8211; 7<br \/>\n= 3<br \/>\nHence, Number of fewer chicks = 3.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 5.<br \/>\nThere are 4 pigs. There are fewer pigs than piglets. How many fewer pigs are there?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21631\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-84.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 84\" width=\"151\" height=\"72\" \/><br \/>\nDraw a picture:<\/p>\n<p>&nbsp;<\/p>\n<p>Subtraction equation:<\/p>\n<p>&nbsp;<\/p>\n<p>_________ fewer pigs<br \/>\nAnswer:<br \/>\nNumber of fewer pigs = 3.<br \/>\nGIVEN:<br \/>\nNumber of pigs = 4<br \/>\nThere are fewer pigs than piglets.<br \/>\nNumber of piglets = 7<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29174\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.7-modelling-5.png\" alt=\"\" width=\"341\" height=\"274\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.7-modelling-5.png 341w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.7-modelling-5-300x241.png 300w\" sizes=\"(max-width: 341px) 100vw, 341px\" \/><br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fewer pigs = Number of piglets &#8211; Number of pigs<br \/>\n= 7 &#8211; 4<br \/>\n= 3<br \/>\nHence, Number of fewer pigs = 3.<\/p>\n<h3><a id=\"Solve_Compare_Problems:_Fewer_Practice_1.7\"><\/a>Solve Compare Problems: Fewer Practice 1.7<\/h3>\n<p>Question 1.<br \/>\nThere are 7 black bears and 8 brown bears. How many fewer black bears are there?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21630\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-85.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 85\" width=\"367\" height=\"87\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-85.png 367w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-85-300x71.png 300w\" sizes=\"(max-width: 367px) 100vw, 367px\" \/><br \/>\n___________ &#8211; __________ = ____________ fewer black bears<br \/>\nANSWER:<br \/>\nNumber of black bears = 1.<br \/>\nGIVEN:<br \/>\nNumber of black bears = 7<br \/>\nNumber of brown bears = 8<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fewer black bears = Number of brown bears &#8211; Number of black bears<br \/>\n= 8 &#8211; 7<br \/>\n= 1<br \/>\nHence, Number of black bears = 1.<\/p>\n<p>Question 2.<br \/>\nYou have 4 purple blocks. Your friend has 9 yellow blocks. Draw the missing blocks. How many fewer blocks do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21629\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-86.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 86\" width=\"149\" height=\"39\" \/><br \/>\n___________ &#8211; __________ = ____________ fewer blocks<br \/>\nAnswer:<br \/>\nNumber of fewer blocks = 5.<br \/>\nGIVEN:<br \/>\nNumber of purple blocks = 4<br \/>\nNumber of yellow blocks = 9<br \/>\nPICTURE: MISSING BLOCKS are 9 yellow blocks.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29182\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7.png\" alt=\"\" width=\"250\" height=\"204\" \/><\/p>\n<p>EXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fewer blocks = Number of purple blocks &#8211; Number of yellow blocks<br \/>\n= 9 &#8211; 4<br \/>\n=5<br \/>\nHence, Number of fewer blocks = 5.<\/p>\n<p>Question 3.<br \/>\nThere are 7 orange kittens and 2 black kittens. Draw the missing kittens. How many fewer black kittens are there?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21628\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-87.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 87\" width=\"299\" height=\"39\" \/><br \/>\n___________ &#8211; __________ = ____________ fewer black kittens<br \/>\nAnswer:<br \/>\nNumber of fewer kittens = 5.<br \/>\nGIVEN:<br \/>\nNumber of orange kittens = 7<br \/>\nNumber of black kittens = 2<br \/>\nPICTURE: MISSING KITTENS are 2 black kittens .<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29183\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7.3.png\" alt=\"\" width=\"366\" height=\"145\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7.3.png 366w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7.3-300x119.png 300w\" sizes=\"(max-width: 366px) 100vw, 366px\" \/><br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fewer kittens = Number of orange kittens &#8211; Number of black kittens<br \/>\n= 7 &#8211; 2<br \/>\n= 5<br \/>\nHence, Number of fewer kittens = 5.<\/p>\n<p>Question 4.<\/p>\n<p><strong>Modeling Real Life<\/strong><br \/>\nThere are 9 lions. There are fewer cubs than lions. How many fewer cubs are there?<\/p>\n<p>_____________ fewer cubs<br \/>\nAnswer:<br \/>\nThere are 5 fewer cubs than lions.<br \/>\nGIVEN:<br \/>\nNumber of lions = 9<br \/>\nThere are fewer cubs than lions.<br \/>\n=&gt; Number of cubs =\u00a0 4<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fewer cubs = Number of lions &#8211; Number of cubs<br \/>\n= 9 &#8211; 4<br \/>\n= 5<br \/>\nHence, there are 5 fewer cubs than lions.<\/p>\n<p><strong>Review and Refresh<\/strong><\/p>\n<p>Draw more counters to show how many in all. Use the ten frame to complete the addition equation.<\/p>\n<p>Question 5.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21627\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-88.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 88\" width=\"189\" height=\"125\" \/><br \/>\nAnswer:<br \/>\n5 + 2 = 7.<br \/>\nGIVEN:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21627\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-88.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 88\" width=\"189\" height=\"125\" \/><br \/>\nEXPLANATION:<br \/>\nLet the missing number be X.<br \/>\nADDITION EQUATION:<br \/>\n5 + X= 7<br \/>\n=&gt; X = 7 &#8211; 5<br \/>\n=&gt; X = 2<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29188\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7-Review-and-Refresh5.png\" alt=\"\" width=\"244\" height=\"119\" \/><br \/>\nHence, 5 + 2 = 7.<\/p>\n<p>Question 6.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21626\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-89.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 89\" width=\"186\" height=\"127\" \/><br \/>\nAnswer:<br \/>\n5 + 4 = 9.<br \/>\nGIVEN:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21626\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-89.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 89\" width=\"186\" height=\"127\" \/><br \/>\nEXPLANATION:<br \/>\nLet the missing number be X<br \/>\nADDITION EQUATION:<br \/>\n5 + X = 9<br \/>\n=&gt; X = 9 &#8211; 5<br \/>\n=&gt; X = 4<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29192\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7-Review-and-Refresh6.png\" alt=\"\" width=\"230\" height=\"101\" \/><br \/>\nHence, EQUATION\u00a0 is 5 + 4 = 9.<\/p>\n<h3><a id=\"Lesson_1.8_Solve_Add_To_Problems_with_Change_Unknown\"><\/a>Lesson 1.8 Solve Add To Problems with Change Unknown<\/h3>\n<p><strong>Explore and Grow<\/strong><\/p>\n<p>Use counters to model the story.<\/p>\n<p>5 people are on a subway. Some more people get on at the subway stop. Now there are 8 people on the subway. How many people got on at the subway stop?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21659\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-90.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 90\" width=\"457\" height=\"435\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-90.png 457w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-90-300x286.png 300w\" sizes=\"(max-width: 457px) 100vw, 457px\" \/><br \/>\nAnswer:<br \/>\nNumber of people got on at the subway stop = 3.<br \/>\nGIVEN:<br \/>\nNumber of people in the train = 5<br \/>\nTotal number of people present in the train \u00a0= 8<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of people got on at the subway stop = Total number of people present in the train &#8211; Number of people in the train<br \/>\n= 8 &#8211; 5<br \/>\n= 3<br \/>\nHence, Number of people got on at the subway stop = 3.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 1.<br \/>\nYou have 3 oranges. You buy some more. Now you have 6. How many oranges did you buy?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21658\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-91.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 91\" width=\"226\" height=\"128\" \/><br \/>\nAddition equation: __________ + _________ = ___________ oranges<br \/>\nAnswer:<br \/>\nNumber of oranges I purchased = 3.<br \/>\nGIVEN:<br \/>\nNumber of oranges I have = 3<br \/>\nNumber of oranges I am having after buying = 6<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of oranges I purchased = Number of oranges I have &#8211; Number of oranges I am having after buying<br \/>\n= 6 &#8211; 3<br \/>\n= 3<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29945\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1.8-Lesson-1.8-Solve-Add-To-Problems-with-Change-Unknown.png\" alt=\"\" width=\"298\" height=\"197\" \/><br \/>\nHence, Number of oranges I purchased = 3.<\/p>\n<p><strong>Apply and Grow: Practice<\/strong><\/p>\n<p>Question 2.<br \/>\n5 kids are in a pool. Some more jump in. Now there are 7 kids. How many kids jumped in the pool?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21657\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-92.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 92\" width=\"227\" height=\"124\" \/><br \/>\n__________ + _________ = ___________ kids<br \/>\nAnswer:<br \/>\nNumber of kids jumped in the pool = 2.<br \/>\nGIVEN:<br \/>\nNumber of kids in\u00a0 pool = 5<br \/>\nTotal number of kids at present = 7<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29439\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Apply-and-Grow-Practice1.7.png\" alt=\"\" width=\"285\" height=\"163\" \/><br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of kids jumped in the pool = Total number of kids at present &#8211; Number of kids in\u00a0 pool<br \/>\n= 7 &#8211; 5<br \/>\n= 2<br \/>\nHence, Number of kids jumped in the pool = 2.<\/p>\n<p>Question 3.<br \/>\nYou hop 6 times. You hop some more times. You hop 10 times in all. How many more times did you hop?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21657\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-92.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 92\" width=\"227\" height=\"124\" \/><br \/>\n__________ + _________ = ___________ times<br \/>\nAnswer:<br \/>\nNumber of more times I hopped = 4.<br \/>\nGIVEN:<br \/>\nNumber of times I hoped = 6<br \/>\nTotal number of times I hopped = 10<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of more times I hopped = Number of times I hoped &#8211; Total number of times I hopped<br \/>\n= 10 &#8211; 6<br \/>\n= 4<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29946\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Apply-and-Grow-Practice1.7.3.png\" alt=\"\" width=\"282\" height=\"189\" \/><br \/>\nHence, Number of more times I hopped = 4.<\/p>\n<p>Question 4.<br \/>\n<strong>MP Structure<\/strong><br \/>\nStructure Circle the model that shows the missing number.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21655\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-94.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 94\" width=\"549\" height=\"135\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-94.png 549w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-94-300x74.png 300w\" sizes=\"(max-width: 549px) 100vw, 549px\" \/><br \/>\nAnswer:<br \/>\n2 + 5 = 7.<br \/>\nGIVEN:<br \/>\n2 + ____= 7<br \/>\nEXPLANATION:<br \/>\nLet the missing number be X.<br \/>\nADDITION:<br \/>\n2 + X = 7<br \/>\n=&gt; X = 7 &#8211; 2<br \/>\n=&gt; X = 5.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29475\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Apply-and-Grow-Practice1.7-Question-4.-MP-Structure.png\" alt=\"\" width=\"642\" height=\"175\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Apply-and-Grow-Practice1.7-Question-4.-MP-Structure.png 642w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Apply-and-Grow-Practice1.7-Question-4.-MP-Structure-300x82.png 300w\" sizes=\"(max-width: 642px) 100vw, 642px\" \/><br \/>\nThe Equation is 2 + 5 = 7.<\/p>\n<p><strong>Think and Grow: Modeling Real Life<\/strong><\/p>\n<p>You catch 2 fish before lunch. You catch some more after lunch. You catch 10 in all. How many fish did you catch after lunch?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21654\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-95.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 95\" width=\"159\" height=\"158\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-95.png 159w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-95-150x150.png 150w\" sizes=\"(max-width: 159px) 100vw, 159px\" \/><br \/>\nModel:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21653\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-96.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 96\" width=\"224\" height=\"145\" \/><br \/>\nAddition equation:<\/p>\n<p>_________ fish<br \/>\nAnswer:<br \/>\nNumber of fishes caught after lunch = 8.<br \/>\nGIVEN:<br \/>\nNumber of fishes caught before lunch = 2<br \/>\nTotal number of fishes present after lunch = 10<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29821\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7-Modeling-Real-Life-1.png\" alt=\"\" width=\"344\" height=\"274\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7-Modeling-Real-Life-1.png 344w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7-Modeling-Real-Life-1-300x239.png 300w\" sizes=\"(max-width: 344px) 100vw, 344px\" \/><br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fishes after lunch = Total number of fishes present after lunch &#8211; Number of fishes caught before lunch<br \/>\n= 10 &#8211; 2<br \/>\n= 8<br \/>\nHence, Number of fishes caught after lunch = 8.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 5.<br \/>\nYou read 7 books. You read 4 on Monday. You read the rest on Tuesday. How many books do you read on Tuesday?<br \/>\nModel:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21652\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-97.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 97\" width=\"226\" height=\"147\" \/><br \/>\nAddition equation:<\/p>\n<p>&nbsp;<\/p>\n<p>__________ books<br \/>\nAnswer:<br \/>\nNumber of books I read on Tuesday = 3.<br \/>\nGIVEN:<br \/>\nTotal number of books I read = 7<br \/>\nNumber of books I read on Monday = 4<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of books I read on Tuesday = Total number of books I read &#8211; Number of books I read on Monday<br \/>\n= 7 &#8211; 4<br \/>\n= 3<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29947\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7-5-Modeling-Real-Life.png\" alt=\"\" width=\"311\" height=\"187\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7-5-Modeling-Real-Life.png 311w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Compare-Problems-Fewer-Practice1.7-5-Modeling-Real-Life-300x180.png 300w\" sizes=\"(max-width: 311px) 100vw, 311px\" \/><br \/>\nHence, Number of books I read on Tuesday = 3.<\/p>\n<h3><a id=\"Solve_Add_To_Problems_with_Change_Unknown_Practice_1.8\"><\/a>Solve Add To Problems with Change Unknown Practice 1.8<\/h3>\n<p>Question 1.<br \/>\n2 kids ride bikes to the park. Some more kids walk to the park. Now there are 6 kids at the park. How many kids walked to the park?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21651\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-98.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 98\" width=\"225\" height=\"124\" \/><br \/>\n__________ + _________ = ___________ kids<br \/>\nAnswer:<br \/>\nNumber of kids walked to the park = 4.<br \/>\nGIVEN:<br \/>\nNumber of kids ride on bikes to park = 2<br \/>\nTotal number of kids present in the park =6<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29827\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.8.png\" alt=\"\" width=\"294\" height=\"165\" \/><br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of kids walked to the park = Total number of kids present in the park &#8211; Number of kids ride on bikes to park<br \/>\n= 6 &#8211; 2<br \/>\n= 4<br \/>\nHence, Number of kids walked to the park = 4.<\/p>\n<p>Question 2.<br \/>\nYou have 5 stamps. You buy some more. Now you have 8. How many stamps did you buy?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21650\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-99.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 99\" width=\"226\" height=\"125\" \/><br \/>\n__________ + _________ = ___________ stamps<br \/>\nAnswer:<br \/>\nNumber of stamps I purchased = 3.<br \/>\nGIVEN:<br \/>\nNumber of stamps I have = 5<br \/>\nTotal number of stamps I have presently = 8<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29837\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.82.png\" alt=\"\" width=\"268\" height=\"155\" \/><br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of stamps I purchased = Total number of stamps I have presently &#8211; Number of stamps I have<br \/>\n= 8 &#8211; 5<br \/>\n= 3<br \/>\nHence, Number of stamps I purchased = 3.<\/p>\n<p>Question 3.<br \/>\n<strong>MP Structure<\/strong><br \/>\nCircle the model that shows the missing number.<br \/>\n4 + _____ = 10<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21649\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-100.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 100\" width=\"554\" height=\"96\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-100.png 554w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-100-300x52.png 300w\" sizes=\"(max-width: 554px) 100vw, 554px\" \/><br \/>\nAnswer:<br \/>\nEQUATION is 4 + 6 = 10 not (1 + 5 = 6) nor (4 + 2= 6).<br \/>\nGIVEN:<br \/>\n4 + ____ = 10<br \/>\nEXPLANATION:<br \/>\nLet the missing number be X.<br \/>\n=&gt; 4 + X = 10<br \/>\nADDITION:<br \/>\n=&gt; 4 + X = 10<br \/>\n=&gt; X = 10 &#8211; 4<br \/>\n=&gt;X = 6<br \/>\nMissing number = 6<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29841\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.83.png\" alt=\"\" width=\"663\" height=\"209\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.83.png 663w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.83-300x95.png 300w\" sizes=\"(max-width: 663px) 100vw, 663px\" \/><br \/>\nHence, EQUATION is 4 + 6 = 10 not (1 + 5 = 6) nor (4 + 2= 6).<\/p>\n<p>Question 4.<br \/>\n<strong>Modeling Real Life<\/strong><br \/>\nYou tell 7 jokes. You tell some more jokes. You tell 10 jokes in all. How many more jokes did you tell?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21648\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-101.png\" alt=\"\" width=\"554\" height=\"191\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-101.png 554w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-101-300x103.png 300w\" sizes=\"(max-width: 554px) 100vw, 554px\" \/><br \/>\nAnswer:<br \/>\nNumber of jokes I told more later = 3.<br \/>\nGIVEN:<br \/>\nNumber of jokes I told = 7<br \/>\nTotal number of jokes I told in all = 10<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of jokes I told more later = Total number of jokes I told in all &#8211; Number of jokes I told<br \/>\n= 10 &#8211; 7<br \/>\n= 3<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29948\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.8-1.png\" alt=\"\" width=\"316\" height=\"179\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.8-1.png 316w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.8-1-300x170.png 300w\" sizes=\"(max-width: 316px) 100vw, 316px\" \/><br \/>\nHence, Number of jokes I told more later = 3.<\/p>\n<p><strong>Review &amp; Refresh<\/strong><\/p>\n<p>Question 5.<br \/>\nWrite the numbers of bears and honey pots. Are the numbers equal? Circle the thumbs up for yes or the thumbs down for no.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21647\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-102.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 102\" width=\"535\" height=\"174\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-102.png 535w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-102-300x98.png 300w\" sizes=\"(max-width: 535px) 100vw, 535px\" \/><br \/>\nAnswer:<br \/>\nNumber of bears and number of honey pots are not same.<br \/>\nGIVEN:<br \/>\n<img src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-102.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 102\" \/><br \/>\nNumber of bears in the picture = 9<br \/>\nNumber of honey pots in the picture = 8<br \/>\nHence, number of bears and number of honey pots are not same.<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29845\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.83-1.png\" alt=\"\" width=\"615\" height=\"245\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.83-1.png 615w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.83-1-300x120.png 300w\" sizes=\"(max-width: 615px) 100vw, 615px\" \/><\/p>\n<h3><a id=\"Lesson_1.9_Connect_Put_Together_and_Take_Apart_Problems\"><\/a>Lesson 1.9 Connect Put Together and Take Apart Problems<\/h3>\n<p><strong>Explore and Grow<\/strong><\/p>\n<p>Use counters to model the story.<\/p>\n<p>There are 9 geese. 4 are flying. The rest are on the ground. How many geese are on the ground?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21677\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-103.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 103\" width=\"552\" height=\"454\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-103.png 552w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-103-300x247.png 300w\" sizes=\"(max-width: 552px) 100vw, 552px\" \/><br \/>\nAnswer:<br \/>\nNumber of geese are on the ground = 5.<br \/>\nGIVEN:<br \/>\nNumber of geese = 9<br \/>\nNumber of geese flying = 4<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of geese are on the ground = Number of geese &#8211; Number of geese flying<br \/>\n= 9 &#8211; 4<br \/>\n= 5<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29851\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Connect-Put-Together-and-Take-Apart-Problems.png\" alt=\"\" width=\"449\" height=\"145\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Connect-Put-Together-and-Take-Apart-Problems.png 449w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Connect-Put-Together-and-Take-Apart-Problems-300x97.png 300w\" sizes=\"(max-width: 449px) 100vw, 449px\" \/><br \/>\nHence,\u00a0 Number of geese are on the ground = 5.<\/p>\n<p><strong>Show and Grow<\/strong><\/p>\n<p>Question 1.<br \/>\nYou have 8 beads. 5 are pink. The rest are orange. How many orange beads do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21676\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-104.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 104\" width=\"226\" height=\"123\" \/><br \/>\n__________ + _________ = ___________ orange beads<\/p>\n<p>__________ &#8211; _________ = ___________ orange beads<br \/>\nAnswer:<br \/>\nNumber of beads in orange color = 3.<br \/>\nGIVEN:<br \/>\nTotal number of beads = 8<br \/>\nNumber of beads in pink color = 5<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of beads in orange color = \u00a0Total number of beads &#8211; Number of beads in pink color<br \/>\n= 8 &#8211; 5<br \/>\n= 3<\/p>\n<p>PICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29920\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.83-Show-and-Grow3.png\" alt=\"\" width=\"273\" height=\"154\" \/><br \/>\nHence, Number of beads in orange color = 3.<\/p>\n<p><strong>Apply and Grow: Practice<\/strong><\/p>\n<p>Question 2.<br \/>\nYou have 9 rings. 7 are green. The rest are orange. How many orange rings do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21675\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-105.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 105\" width=\"228\" height=\"125\" \/><br \/>\n__________ + _________ = ___________ orange rings<\/p>\n<p>__________ &#8211; _________ = ___________ orange rings<br \/>\nAnswer:<br \/>\nNumber of orange rings = 2.<br \/>\nGIVEN:<br \/>\nTotal number of rings = 9<br \/>\nNumber of green rings = 7<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of orange rings = Total number of rings &#8211; Number of green rings<br \/>\n= 9 &#8211; 7<br \/>\n= 2<\/p>\n<p>PICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29921\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1.8-Apply-and-Grow-Practice.png\" alt=\"\" width=\"283\" height=\"180\" \/><br \/>\nHence, Number of orange rings = 2.<\/p>\n<p>Question 3.<br \/>\nThere are 3 spiders in a tree. Some more are on the ground. There are 10 spiders in all. How many spiders are on the ground?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21674\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-106.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 106\" width=\"225\" height=\"121\" \/><br \/>\n__________ + _________ = ___________ spiders<\/p>\n<p>__________ &#8211; _________ = ___________ spiders<br \/>\nAnswer:<br \/>\nNumber of spiders on the ground = 7.<br \/>\nGIVEN:<br \/>\nNumber of spiders in a tree = 3<br \/>\nTotal\u00a0 number of spiders in all = 10<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of spiders on the ground = Total\u00a0 number of spiders in all &#8211; Number of spiders in a tree<br \/>\n= 10 &#8211; 3<br \/>\n= 7<\/p>\n<p>PICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29926\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.83..png\" alt=\"\" width=\"254\" height=\"155\" \/><\/p>\n<p>Hence, Number of spiders on the ground = 7.<\/p>\n<p>Question 4.<br \/>\n<strong>MP Structure<\/strong><br \/>\n10 students play instruments. 6 play drums. The rest play flutes. How many students play flutes? Use the model to write an equation and solve.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21673\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-107.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 107\" width=\"228\" height=\"145\" \/><br \/>\n_________ \u25cb _________ = ____________ students<br \/>\nAnswer:<br \/>\nNumber of students play flutes = 4.<br \/>\nGIVEN:<br \/>\nTotal number of students play instruments = 10<br \/>\nNumber of students play drums = 6<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of students play flutes = Total number of students play instruments &#8211; Number of students play drums<br \/>\n= 10 &#8211; 6<br \/>\n= 4<\/p>\n<p>PICTIURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29927\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Solve-Add-To-Problems-with-Change-Unknown-Practice-1.84..png\" alt=\"\" width=\"265\" height=\"164\" \/><br \/>\nHence, Number of students play flutes = 4.<\/p>\n<p><strong>Think and Grow: Modeling Real Life<\/strong><\/p>\n<p>There are 8 students at a playground. 2 are on the slides. The rest are on the swings. How many students are on the swings?<br \/>\nWhich equations match the story?<br \/>\n10 &#8211; 2 = 8<br \/>\n8 &#8211; 2 = 6<br \/>\n2 + 6 = 8<br \/>\n8 + 2 = 10<br \/>\nShow how you know:<\/p>\n<p>________ students are on the swings<br \/>\nAnswer:<br \/>\nEQUATION is 8 &#8211; 2 = 6 not 10 &#8211; 2 = 8, 2 + 6 = 8, 8 + 2 = 10.<br \/>\nGIVEN:<br \/>\nNumber of students at a playground = 8<br \/>\nNumber of students on the slides = 2<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of students on the swings = Number of students at a playground &#8211; Number of students on the slides<br \/>\n= 8 &#8211; 2<br \/>\n= 6<br \/>\nSo, Number of students on the swings = 6.<\/p>\n<p>Hence, EQUATION is 8 &#8211; 2 = 6 not 10 &#8211; 2 = 8, 2 + 6 = 8, 8 + 2 = 10.<\/p>\n<p>Question 5.<br \/>\nYour teacher has 5 outdoor toys. 2 are flying discs. The rest are jump ropes. How many jump ropes are there?<br \/>\nWhich equations match the story?<br \/>\n5 + 2 = 7<br \/>\n7 &#8211; 2 = 5<br \/>\n2 + 3 = 5<br \/>\n5 &#8211; 2 = 3<br \/>\nShow how you know:<\/p>\n<p>&nbsp;<\/p>\n<p>There are ______ jump ropes.<br \/>\nAnswer:<br \/>\nEQUATION is 5 &#8211; 2 = 3 not 5 + 2 = 7, 7 &#8211; 2 = 5, 2 + 3 = 5.<br \/>\nGIVEN:<br \/>\nNumber of outdoor toys\u00a0 = 5<br \/>\nNumber of flying discs = 2<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of jump ropes = Number of outdoor toys\u00a0 &#8211; Number of flying discs<br \/>\n= 5 &#8211; 2<br \/>\n= 3<br \/>\nSo, Number of jump ropes = 3.<br \/>\nHence, EQUATION is 5 &#8211; 2 = 3 not 5 + 2 = 7, 7 &#8211; 2 = 5, 2 + 3 = 5.<\/p>\n<h3><a id=\"Connect_Put_Together_and_Take_Apart_Problems_Practice_1.9\"><\/a>Connect Put Together and Take Apart Problems Practice 1.9<\/h3>\n<p>Question 1.<br \/>\nYou have 8 markers. 2 are purple. The rest are blue. How many blue markers do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21672\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-108.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 108\" width=\"225\" height=\"123\" \/><br \/>\n__________ + _________ = ___________ blue markers<\/p>\n<p>__________ &#8211; _________ = ___________ blue markers<br \/>\nAnswer:<br \/>\nNumber of blue markers = 6.<br \/>\nGIVEN:<br \/>\nTotal number of markers = 8<br \/>\nNumber of purple markers = 2<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of blue markers = Total number of markers &#8211; Number of purple markers<br \/>\n= 8 -2<br \/>\n= 6<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29930\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Connect-Put-Together-and-Take-Apart-Problems-Practice-1.9.1.png\" alt=\"\" width=\"288\" height=\"162\" \/><br \/>\nHence, Number of blue markers = 6.<\/p>\n<p>Question 2.<br \/>\nThere are 6 alligators. 3 are in a swamp. The rest are in the grass. How many alligators are in the grass?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21671\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-109.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 109\" width=\"221\" height=\"124\" \/><br \/>\n__________ + _________ = ___________ alligators<\/p>\n<p>__________ &#8211; _________ = ___________ alligators<br \/>\nAnswer:<br \/>\nNumber of alligators in the grass = 3.<br \/>\nGIVEN:<br \/>\nTotal number of alligators = 6<br \/>\nNumber of alligators in a swamp = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of alligators in the grass = Total number of alligators &#8211; Number of alligators in a swamp<br \/>\n= 6 &#8211; 3<br \/>\n= 3<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29931\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Connect-Put-Together-and-Take-Apart-Problems-Practice-1.9.2.png\" alt=\"\" width=\"260\" height=\"145\" \/><br \/>\nHence, Number of alligators in the grass = 3.<\/p>\n<p>Question 3.<br \/>\n<strong>MP Structure<\/strong><br \/>\nThere are 2 chickens inside a coop. Some more are outside the coop. There are 10 chickens in all. How many chickens are outside the coop? Use the model to write an equation and solve.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21670\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Answer-Key-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-110.png\" alt=\"Big Ideas Math Answer Key Grade 1 Chapter 1 Addition and Subtraction Situations 110\" width=\"227\" height=\"146\" \/><br \/>\n_________ \u25cb _________ = ____________ chickens<br \/>\nAnswer:<br \/>\nNumber of chickens outside the coop = 8.<br \/>\nGIVEN:<br \/>\nNumber of chickens inside a coop = 2<br \/>\nTotal number of chickens in all = 10<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of chickens outside the coop = Total number of chickens in all &#8211; Number of chickens inside a coop<br \/>\n=10 &#8211; 2<br \/>\n= 8<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29932\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Connect-Put-Together-and-Take-Apart-Problems-Practice-1.9.3.png\" alt=\"\" width=\"266\" height=\"162\" \/><br \/>\nHence, Number of chickens outside the coop = 8.<\/p>\n<p>Question 4.Modeling Real Life<br \/>\nYour teacher has 7 balls. 2 are soccer balls. The rest are basketballs. How many basketballs are there?<br \/>\nWhich equations match the story?<br \/>\n7 &#8211; 2 = 5<br \/>\n9 &#8211; 2 = 7<br \/>\n7 + 2 = 9<br \/>\n2 + 5 = 7<br \/>\nShow how you know:<\/p>\n<p>There are _____ basketballs.<\/p>\n<p>Answer:<br \/>\nEQUATION is 7 &#8211; 2 = 5 not 9 &#8211; 2 = 7, 7 + 2 = 9, 2 + 5 = 7.<br \/>\nGIVEN:<br \/>\nTotal number of balls = 7<br \/>\nNumber of\u00a0 soccer balls = 2<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of basketballs = Total number of balls &#8211; Number of\u00a0 soccer balls<br \/>\n= 7 &#8211; 2<br \/>\n= 5<br \/>\nSo, Number of basketballs = 5.<br \/>\nHence, EQUATION is 7 &#8211; 2 = 5 not 9 &#8211; 2 = 7, 7 + 2 = 9, 2 + 5 = 7.<\/p>\n<p><strong>Review &amp; Refresh<\/strong><\/p>\n<p>Find the sum.<\/p>\n<p>Question 5.<br \/>\n6 + 0 = ______<br \/>\nAnswer:<br \/>\nSum of 6 + 0 = 6.<br \/>\nGIVEN:<br \/>\n6 + 0 =____.<br \/>\nEXPLAINATION:<br \/>\nThere are 6 counters in each group<br \/>\nTotal number of groups = 0<br \/>\nAdd the number of groups<br \/>\n6 + 0 = 6.<\/p>\n<p>Question 6.<br \/>\n0 + 0 = ______<br \/>\nAnswer:<br \/>\nSum of 0 + 0 = 0.<br \/>\nGIVEN:<br \/>\n0 + 0 = ___<br \/>\nEXPLAINATION:<br \/>\nThere are 0 counters in each group<br \/>\nTotal number of groups = 0<br \/>\nAdd the number of groups<br \/>\n0 + 0 = 0.<\/p>\n<p>Question 7.<br \/>\n5 + 1 = _______<br \/>\nAnswer:<br \/>\nSum of 5 + 1 = 6.<br \/>\nGIVEN:<br \/>\n5 + 1 = _____<br \/>\nEXPLAINATION:<br \/>\nThere are 5 counters in each group<br \/>\nTotal number of groups = 1<br \/>\nAdd the number of groups<br \/>\n5 + 1 = 6.<\/p>\n<p>Question 8.<br \/>\n9 + 1 = ______<br \/>\nAnswer:<br \/>\nSum of 9 + 1 = 10.<br \/>\nGIVEN:<br \/>\n9 + 1 =____<br \/>\nEXPLAINATION:<br \/>\nThere are 6 counters in each group<br \/>\nTotal number of groups = 0<br \/>\nAdd the number of groups<br \/>\n9 + 1 = 10.<\/p>\n<h3><a id=\"Addition_and_Subtraction_Situations_Performance_Task\"><\/a>Addition and Subtraction Situations Performance Task<\/h3>\n<p>Question 1.<br \/>\n3 birds are on a wire. 5 birds are on a branch.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21843\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-111.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 111\" width=\"90\" height=\"51\" \/><\/p>\n<p>(a) 2 more birds land on the wire. How many birds are on the wire now?<br \/>\n__________ birds<br \/>\nAnswer:<br \/>\nTotal number of birds are on a wire now = 5.<br \/>\nGIVEN:<br \/>\nNumber of birds are on a wire = 3<br \/>\nNumber of birds\u00a0 added more are on a wire = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of birds are on a wire now = Number of birds are on a wire &#8211; Number of birds\u00a0 added more are on a wire = 3 + 2<br \/>\n= 5<br \/>\nHence, Total number of birds are on a wire now = 5.<\/p>\n<p>(b)<br \/>\nI bird flies away from the branch. How many birds are on the branch now?<br \/>\n__________ birds<br \/>\nAnswer:<br \/>\nNumber of birds are on the branch now = 4.<br \/>\nGIVEN:<br \/>\nNumber of birds on the branch = 5<br \/>\nNumber of birds flew away from branch = 1<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of birds are on the branch now = Number of birds on the branch &#8211; Number of birds flew away from branch<br \/>\n= 5 &#8211; 1<br \/>\n= 4<br \/>\nHence, Number of birds are on the branch now = 4.<\/p>\n<p>(c)<br \/>\nHow many more birds are on the wire now than on the branch now?<br \/>\n__________ more birds<br \/>\nAnswer:<br \/>\nNumber of birds are on the wire now more than \u00a0on the branch now = 1.<br \/>\nGIVEN:<br \/>\nNumber of birds are on the wire now = 5<br \/>\nNumber of birds are on the branch now = 4<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of birds are on the wire now more than \u00a0on the branch now = Number of birds are on the wire now &#8211; Number of birds are on the branch now<br \/>\n= 5 &#8211; 4<br \/>\n= 1.<br \/>\nHence, Number of birds are on the wire now more than \u00a0on the branch now = 1.<\/p>\n<p>Question 2.<br \/>\nThere are 6 birds. Draw some on the wire and some on the branch. Write an addition equation and a subtraction equation to match your picture.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21842\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-112.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 112\" width=\"583\" height=\"233\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-112.png 583w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-112-300x120.png 300w\" sizes=\"(max-width: 583px) 100vw, 583px\" \/><br \/>\nAnswer:<br \/>\nSUBTRACTION EQUATION = 6 &#8211; 3 = 3.<br \/>\nADDITION EQUATION = 3 + 3 = 6.<br \/>\nGIVEN:<br \/>\nTotal number of birds = 6<br \/>\nNumber of birds on the wire = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of birds on the branch = Total number of birds &#8211; Number of birds on the wire<br \/>\n= 6 &#8211; 3<br \/>\n= 3<br \/>\nHence, SUBTRACTION EQUATION = 6 &#8211; 3 = 3.<br \/>\nADDITION:<br \/>\nTotal number of birds = Number of birds on the wire\u00a0 + Number of birds on the branch<br \/>\n= 3 + 3<br \/>\n= 6<br \/>\nHence, ADDITION EQUATION = 3 + 3 = 6.<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29936\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Addition-and-Subtraction-Situations-Performance-Task2.png\" alt=\"\" width=\"676\" height=\"319\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Addition-and-Subtraction-Situations-Performance-Task2.png 676w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Addition-and-Subtraction-Situations-Performance-Task2-300x142.png 300w\" sizes=\"(max-width: 676px) 100vw, 676px\" \/><\/p>\n<h3>Addition: Add To Practice Homework &amp; Practice 1.1<\/h3>\n<p>Question 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21841\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-113.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 113\" width=\"299\" height=\"75\" \/><br \/>\nThere are 4 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21840\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-114.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 114\" width=\"32\" height=\"29\" \/>.<br \/>\n2 more <img loading=\"lazy\" class=\"alignnone size-full wp-image-21840\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-114.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 114\" width=\"32\" height=\"29\" \/> join them.<br \/>\nNow there are _______ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21840\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-114.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 114\" width=\"32\" height=\"29\" \/>.<br \/>\n___________ + ___________ = ___________<br \/>\nAnswer:<br \/>\nTotal number of frogs now = 6.<br \/>\nGIVEN:<br \/>\nTotal number of frogs = 4<br \/>\nNumber of frogs joined more = 2<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of frogs now = Total number of frogs + Number of frogs joined more<br \/>\n= 4 + 2<br \/>\n= 6<br \/>\nHence, Total number of frogs now = 6.<br \/>\n<img src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-113.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 113\" \/><\/p>\n<h3><a id=\"Solve_Add_To_Problems_Practice_1.2\"><\/a>Solve Add To Problems Homework &amp; Practice 1.2<\/h3>\n<p>Question 2.<br \/>\nThere are 5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21839\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-115.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 115\" width=\"33\" height=\"34\" \/>.<br \/>\n3 more <img loading=\"lazy\" class=\"alignnone size-full wp-image-21839\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-115.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 115\" width=\"33\" height=\"34\" \/> join them.<br \/>\nHow many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21839\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-115.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 115\" width=\"33\" height=\"34\" \/> are there now?<br \/>\n___________ + ___________ = ___________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21839\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-115.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 115\" width=\"33\" height=\"34\" \/><br \/>\nAnswer:<br \/>\nTotal number of octopus now = 8.<br \/>\nGIVEN:<br \/>\nTotal number of octopus = 5<br \/>\nNumber of octopus joined more = 3<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of octopus now = Total number of octopus &#8211; Number of octopus joined more<br \/>\n= 5 + 3<br \/>\n= 8<br \/>\nHence, Total number of octopus now = 8.<\/p>\n<p>Question 3.<br \/>\n<strong>Modeling Real Life<\/strong><br \/>\nYou have 3 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21838\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-116.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 116\" width=\"55\" height=\"25\" \/>. Your friend gives you I <img loading=\"lazy\" class=\"alignnone size-full wp-image-21838\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-116.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 116\" width=\"55\" height=\"25\" \/>. How many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21838\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-116.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 116\" width=\"55\" height=\"25\" \/> do you have now?<\/p>\n<p>&nbsp;<\/p>\n<p>____________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21838\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-116.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 116\" width=\"55\" height=\"25\" \/><br \/>\nAnswer:<br \/>\nTotal number of crayons I have now = 4.<br \/>\nGIVEN:<br \/>\nNumber of crayons I have = 3<br \/>\nNumber of crayons my friend gave me = 1<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of crayons I have now =\u00a0 Number of crayons I have &#8211; Number of crayons my friend gave me<br \/>\n= 3 + 1<br \/>\n= 4<br \/>\nHence, Total number of crayons I have now = 4.<\/p>\n<h3><a id=\"Solve_Put_Together_Problems_Practice_1.3\"><\/a>Solve Put Together Problems Homework &amp; Practice 1.3<\/h3>\n<p>Question 4.<br \/>\nYou have 4 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21837\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-117.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 117\" width=\"28\" height=\"31\" \/> and 4 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21836\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-118.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 118\" width=\"27\" height=\"38\" \/> . How many flowers do you have in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21835\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-119.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 119\" width=\"232\" height=\"147\" \/><br \/>\n___________ + ___________ = ___________ flowers<br \/>\nAnswer:<br \/>\nTotal number of flowers in all = 8.<br \/>\nGIVEN:<br \/>\nNumber of pink color flowers = 4<br \/>\nNumber of blue color flowers = 4<br \/>\nEXPLANATION:<br \/>\nADDITION:<br \/>\nTotal number of flowers in all = Number of pink color flowers &#8211; Number of blue color flowers<br \/>\n= 4 + 4<br \/>\n= 8<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29937\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-Homework-Practice-1.3.4.png\" alt=\"\" width=\"308\" height=\"192\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-Homework-Practice-1.3.4.png 308w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-Solve-Put-Together-Problems-Homework-Practice-1.3.4-300x187.png 300w\" sizes=\"(max-width: 308px) 100vw, 308px\" \/><br \/>\nHence, Total number of flowers in all = 8.<\/p>\n<h3>Solve Put Together Problems with Both Addends Unknown Homework &amp; Practice 1.4<\/h3>\n<p>Question 5.<br \/>\nThere are 10 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21834\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-120.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 120\" width=\"17\" height=\"37\" \/> . Some are standing up. The rest are knocked down. Draw two different pictures to show the <img loading=\"lazy\" class=\"alignnone size-full wp-image-21834\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-120.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 120\" width=\"17\" height=\"37\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21833\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-121.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 121\" width=\"547\" height=\"205\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-121.png 547w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-121-300x112.png 300w\" sizes=\"(max-width: 547px) 100vw, 547px\" \/><br \/>\nAnswer:<br \/>\nFIGURE:1: Number of knocked down bowls = 4.<br \/>\nFIGURE:2: Number of knocked down bowls = 5.<br \/>\nGIVEN:<br \/>\nFIGURE:1:<br \/>\nNumber of bowls = 10<br \/>\nNumber of standing bowls = 6<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of knocked down bowls = Number of bowls &#8211; Number of standing bowls<br \/>\n= 10 &#8211; 6<br \/>\n= 4<br \/>\nHence, Number of knocked down bowls = 4.<br \/>\nFIGURE:2:<br \/>\nNumber of bowls = 10<br \/>\nNumber of standing bowls = 5<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of knocked down bowls = Number of bowls &#8211; Number of standing bowls<br \/>\n= 10 &#8211; 5<br \/>\n= 5<br \/>\nHence, Number of knocked down bowls = 5.<\/p>\n<p>PICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29943\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Solve-Compare-Problems-5-Solve-Add-To-Problems-with-Change-Unknown-Homework-Practice-1.8.png\" alt=\"\" width=\"669\" height=\"264\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Solve-Compare-Problems-5-Solve-Add-To-Problems-with-Change-Unknown-Homework-Practice-1.8.png 669w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Solve-Compare-Problems-5-Solve-Add-To-Problems-with-Change-Unknown-Homework-Practice-1.8-300x118.png 300w\" sizes=\"(max-width: 669px) 100vw, 669px\" \/><\/p>\n<h3>Solve Take From Problems Homework &amp; Practice 1.5<\/h3>\n<p>Question 6.<br \/>\nThere are 7 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21832\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-122.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 122\" width=\"44\" height=\"35\" \/><br \/>\n3 <img loading=\"lazy\" class=\"alignnone size-full wp-image-21832\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-122.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 122\" width=\"44\" height=\"35\" \/> swim away.<br \/>\nHow many <img loading=\"lazy\" class=\"alignnone size-full wp-image-21832\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-122.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 122\" width=\"44\" height=\"35\" \/> are left?<br \/>\n___________ &#8211; ___________ = ___________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-21832\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-122.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 122\" width=\"44\" height=\"35\" \/><br \/>\nAnswer:<br \/>\nNumber of dolphins left = 4.<br \/>\nGIVEN:<br \/>\nTotal number of dolphins = 7<br \/>\nNumber of dolphins swam away = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of dolphins left = Total number of dolphins &#8211; Number of dolphins swam away<br \/>\n= 7 &#8211; 3<br \/>\n= 4<br \/>\nHence, Number of dolphins left = 4.<\/p>\n<h3>Solve Compare Problems: More Homework &amp; Practice 1.6<\/h3>\n<p>Question 7.<br \/>\nYou have 6 whistles. Your friend has 3 whistles. How many more whistles do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21831\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-123.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 123\" width=\"335\" height=\"87\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-123.png 335w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-123-300x78.png 300w\" sizes=\"(max-width: 335px) 100vw, 335px\" \/><br \/>\n___________ &#8211; ___________ = ___________ more whistles<br \/>\nAnswer:<br \/>\nNumber of whistles I have more than my friend = 3.<br \/>\nGIVEN:<br \/>\nTotal number of whistles I have = 6<br \/>\nNumber of whistles my friend has = 3<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of whistles I have more than my friend = Total number of whistles I have &#8211; Number of whistles my friend has = 6 &#8211; 3<br \/>\n= 3<br \/>\nHence, Number of whistles I have more than my friend = 3.<\/p>\n<p>Question 8.<br \/>\nThere are 2 yellow blankets and 9 green blankets. Draw the missing blankets. How many more green blankets are there?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21830\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-124.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 124\" width=\"149\" height=\"41\" \/><br \/>\n___________ &#8211; ___________ = ___________ more green blankets<br \/>\nAnswer:<br \/>\nNumber of green blankets more than yellow blankets = 7.<br \/>\nGIVEN:<br \/>\nNumber of yellow blankets = 2<br \/>\nNumber of green blankets = 9<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of green blankets more than yellow blankets = Number of green blankets &#8211; Number of yellow blankets<br \/>\n= 9 &#8211; 2<br \/>\n= 7<br \/>\nPICTURE: MISSING BLANKETS are 9 green blankets.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29938\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Solve-Compare-Problems-8-More-Homework-Practice-1.6.png\" alt=\"\" width=\"237\" height=\"140\" \/><br \/>\nHence, Number of green blankets more than yellow blankets = 7.<\/p>\n<h3>Solve Compare Problems: Fewer Homework &amp; Practice 1.7<\/h3>\n<p>Question 9.<br \/>\nYou have 5 puzzles. Your friend has 7 puzzles. How many fewer puzzles do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21829\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-125.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 125\" width=\"411\" height=\"70\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-125.png 411w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-125-300x51.png 300w\" sizes=\"(max-width: 411px) 100vw, 411px\" \/><br \/>\n___________ &#8211; ___________ = ___________ fewer puzzles<br \/>\nAnswer:<br \/>\nNumber of fewer puzzles I have = 2.<br \/>\nGIVEN:<br \/>\nNumber of puzzles I have = 5<br \/>\nNumber of puzzles my friend has = 7<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fewer puzzles I\u00a0 have = Number of puzzles my friend has\u00a0 &#8211; Number of puzzles I have<br \/>\n= 7 &#8211; 5<br \/>\n= 2<br \/>\nHence, Number of fewer puzzles I have = 2.<\/p>\n<p>Question 10.<br \/>\nThere are 8 red leaves and 4 orange leaves. Draw the missing leaves. How many fewer orange leaves are there?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21828\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-126.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 126\" width=\"316\" height=\"32\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-126.png 316w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-126-300x30.png 300w\" sizes=\"(max-width: 316px) 100vw, 316px\" \/><br \/>\n___________ &#8211; ___________ = ___________ fewer orange leaves<br \/>\nAnswer:<br \/>\nNumber of fewer orange leaves = 4.<br \/>\nGIVEN:<br \/>\nNumber of red leaves = 8<br \/>\nNumber of orange leaves = 4<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of fewer orange leaves = Number of red leaves &#8211; Number of orange leaves<br \/>\n= 8 &#8211; 4<br \/>\n= 4<br \/>\nPICTURE: MISSING LEAVES are orange leaves.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29939\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Solve-Compare-Problems-10-More-Homework-Practice-1.6.png\" alt=\"\" width=\"350\" height=\"92\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Solve-Compare-Problems-10-More-Homework-Practice-1.6.png 350w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Solve-Compare-Problems-10-More-Homework-Practice-1.6-300x79.png 300w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><\/p>\n<p>Hence, Number of fewer orange leaves = 4.<\/p>\n<h3>Solve Add To Problems with Change Unknown Homework &amp; Practice 1.8<\/h3>\n<p>Question 11.<br \/>\nYou have 3 bracelets. Your friend gives you some more. Now you have 9 How many bracelets did your friend give you?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21827\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-127.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 127\" width=\"224\" height=\"122\" \/><br \/>\n___________ + ___________ = ___________ bracelets<br \/>\nAnswer:<br \/>\nNumber of bracelets my friend gave me = 6.<br \/>\nGIVEN:<br \/>\nNumber of bracelets I have = 3<br \/>\nTotal number of bracelets my friend gave me more after = 9<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of bracelets my friend gave me = Total number of bracelets my friend gave me more after &#8211; Number of bracelets I have<br \/>\n= 9 &#8211; 3<br \/>\n= 6<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29940\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Solve-Compare-Problems-11-Solve-Add-To-Problems-with-Change-Unknown-Homework-Practice-1.8.png\" alt=\"\" width=\"266\" height=\"177\" \/><br \/>\nHence, \u00a0Number of bracelets my friend gave me = 6.<\/p>\n<p>Question 12.<br \/>\nYou have 5 carrots. You buy some more. Now you have 10. How many carrots did you buy?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21826\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-128.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 128\" width=\"220\" height=\"123\" \/><br \/>\n___________ + ___________ = ___________ carrots<br \/>\nAnswer:<br \/>\nNumber of carrots I purchased = 5.<br \/>\nGIVEN:<br \/>\nTotal number of carrots I have = 5<br \/>\nTotal number of carrots I have now = 10<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of carrots I purchased = Total number of carrots I have now &#8211; Total number of carrots I have<br \/>\n= 10 &#8211; 5<br \/>\n= 5<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29942\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Solve-Compare-Problems-12-Solve-Add-To-Problems-with-Change-Unknown-Homework-Practice-1.8.png\" alt=\"\" width=\"295\" height=\"176\" \/><br \/>\nHence, Number of carrots I purchased = 5.<\/p>\n<h3>Connect Put Together and Take Apart Problems Homework &amp; Practice 1.9<\/h3>\n<p>Question 13.<br \/>\nYou have 4 hats. 2 have polka dots. The rest have stripes. How many striped hats do you have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-21825\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Solutions-Grade-1-Chapter-1-Addition-and-Subtraction-Situations-129.png\" alt=\"Big Ideas Math Solutions Grade 1 Chapter 1 Addition and Subtraction Situations 129\" width=\"225\" height=\"119\" \/><br \/>\n___________ + ___________ = __________ striped hats<\/p>\n<p>___________ &#8211; ___________ = ___________ striped hats<br \/>\nAnswer:<br \/>\nNumber of stripes hats I have = 2.<br \/>\nGIVEN:<br \/>\nTotal number of hats I have = 4<br \/>\nNumber of polka dots\u00a0 hats I have = 2<br \/>\nEXPLANATION:<br \/>\nSUBTRACTION:<br \/>\nNumber of stripes hats I have = Total number of hats I have &#8211; Number of polka dots\u00a0 hats I have<br \/>\n= 4 &#8211; 2<br \/>\n= 2<br \/>\nPICTURE:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-29941\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2021\/01\/Big-Ideas-Math-Book-1st-Grade-Answer-Key-Chapter-1-Lesson-1.9-Solve-Compare-Problems-13-Connect-Put-Together-and-Take-Apart-Problems-Homework-Practice-1.9.png\" alt=\"\" width=\"274\" height=\"151\" \/><br \/>\nHence, the Number of stripes hats I have = 2.<\/p>\n<p><em>Conclusion:<\/em><br \/>\nGet free access to download Big Ideas Math Grade 1 Answers Chapter 1 Addition and Subtraction Situations from the above given links. Share the pdf link with your friends and help them to improve their performance skills. Bookmark our page to get Big Ideas Math Grade 1 Answers for all chapters.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Download Big Ideas Math Book 1st Grade Answer Key Chapter 1 Addition and Subtraction Situations pdf for free of cost. Addition and subtraction are the basics you have to learn in maths to become a master. Make use of Big Ideas Math Book 1st Grade Answer Key Chapter 1 Addition and Subtraction Situations and start &#8230; <a title=\"Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations\" class=\"read-more\" href=\"https:\/\/bigideasmathanswers.com\/big-ideas-math-answers-grade-1-chapter-1\/\" aria-label=\"More on Big Ideas Math Answers Grade 1 Chapter 1 Addition and Subtraction Situations\">Read more<\/a><\/p>\n","protected":false},"author":9,"featured_media":89518,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[4],"tags":[],"jetpack_featured_media_url":"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2021\/04\/Big-Ideas-Math-Answers-Grade-1-Chapter-1.png","_links":{"self":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/20780"}],"collection":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/comments?post=20780"}],"version-history":[{"count":1,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/20780\/revisions"}],"predecessor-version":[{"id":90274,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/20780\/revisions\/90274"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/media\/89518"}],"wp:attachment":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/media?parent=20780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/categories?post=20780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/tags?post=20780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}