{"id":89981,"date":"2022-03-30T17:12:09","date_gmt":"2022-03-30T11:42:09","guid":{"rendered":"https:\/\/bigideasmathanswers.com\/?p=89981"},"modified":"2022-04-07T14:45:04","modified_gmt":"2022-04-07T09:15:04","slug":"envision-math-common-core-grade-1-answer-key-topic-5","status":"publish","type":"post","link":"https:\/\/bigideasmathanswers.com\/envision-math-common-core-grade-1-answer-key-topic-5\/","title":{"rendered":"enVision Math Common Core Grade 1 Answer Key Topic 5 Work with Addition and Subtraction Equations"},"content":{"rendered":"<p>Practice with the help of <a href=\"https:\/\/bigideasmathanswers.com\/envision-math-common-core-grade-1-answer-key\/\">enVision Math Common Core Grade 1 Answer Key<\/a> <strong>Topic 5 Work with Addition and Subtraction Equations<\/strong> regularly and improve your accuracy in solving questions.<\/p>\n<h2>enVision Math Common Core 1st Grade Answers Key Topic 5 Work with Addition and Subtraction Equations<\/h2>\n<p><strong>Essential Question:<\/strong> How can adding and subtracting help Animals cannot<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2439\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-1.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 1\" width=\"739\" height=\"448\" \/><\/p>\n<p>Find Out Talk to friends and relatives about how animals such as dolphins use sonar. Ask them to help you learn more about sonar in a book or on a computer.<br \/>\nJournal: Make a Book Show what you found out. In your book, also:<\/p>\n<ul>\n<li>Draw a picture of one way that sonar is used.<\/li>\n<li>Make up and solve addition and subtraction problems about the animals that use sonar to communicate.<\/li>\n<\/ul>\n<p><strong>Review What You Know<\/strong><\/p>\n<p>Vocabulary<br \/>\nQuestion 1.<br \/>\nCircle the addends in the equation.<br \/>\n4 + 5 = 9<br \/>\nAnswer:<br \/>\nAddends are nothing but parts of the whole numbers.<br \/>\nHere 4 and 5 are the addends in the given equation<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7022\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-5-Work-with-Addition-and-Subtraction-Equations-img_1.png\" alt=\"Envision Math Common Core 1st Grade Answers Key Topic 5 Work with Addition and Subtraction Equations img_1\" width=\"154\" height=\"86\" \/><\/p>\n<p>Question 2.<br \/>\nCircle the equation that is a related fact for<br \/>\n10 &#8211; 8 = 2.<br \/>\n8 &#8211; 6 = 2<br \/>\n8 + 2 = 10<br \/>\nAnswer:<br \/>\nAddends are nothing but parts of the whole numbers.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7023\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-5-Work-with-Addition-and-Subtraction-Equations-img_2.png\" alt=\"Envision Math Common Core 1st Grade Answers Key Topic 5 Work with Addition and Subtraction Equations img_2\" width=\"130\" height=\"128\" \/><\/p>\n<p>Question 3.<br \/>\nCircle the number that will complete the fact family.<br \/>\n3 + <span style=\"text-decoration: underline;\">? <\/span>= 10<br \/>\n<span style=\"text-decoration: underline;\">?<\/span> + 3 = 10<br \/>\n10 &#8211; 3 = <span style=\"text-decoration: underline;\">?<\/span><br \/>\n10 &#8211; <span style=\"text-decoration: underline;\">?<\/span> = 3<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2440\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-2.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 2\" width=\"179\" height=\"56\" \/><br \/>\nAnswer: 7<\/p>\n<p><strong>Subtraction Stories<\/strong><br \/>\nUse cubes to solve. Write the subtraction equation.<\/p>\n<p>Question 4.<br \/>\n8 squirrels are on the ground. 5 are eating acorns. How many squirrels are NOT eating acorns?<br \/>\n_______ &#8211; _______ = ________<br \/>\nAnswer:<br \/>\nGiven,<br \/>\n8 squirrels are on the ground. 5 are eating acorns.<br \/>\n8 &#8211; 5 = 3<br \/>\nThus 3 squirrels are not eating acorns<\/p>\n<p>Question 5.<br \/>\nBrett has 5 markers. Pablo has 3 markers. How many more markers does Brett have than Pablo?<br \/>\n_______ &#8211; _______ = ________<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nBrett has 5 markers. Pablo has 3 markers.<br \/>\n5 &#8211; 3 = 2<br \/>\nThus Brett has 2 more markers than Pablo.<\/p>\n<p><strong>Related Facts<\/strong><br \/>\nQuestion 6.<br \/>\nWrite the related subtraction facts.<br \/>\n9 = 4 + 5<br \/>\n_______ = _______ &#8211; ________<br \/>\n_______ = _______ &#8211; ________<br \/>\nAnswer:<br \/>\n5 = 9 &#8211; 4<br \/>\n4 = 9 &#8211; 5<\/p>\n<p><strong>Pick a Project<\/strong><\/p>\n<p>PROJECT 5A<br \/>\nWhat is growing on that tree?<br \/>\nProject: Make Flash Cards<\/p>\n<p>PROJECT 5B<br \/>\nDoes the moon ever change?<br \/>\nProject: Write and Solve Moon Problems<\/p>\n<p>PROJECT 5C<br \/>\nWho captured more pieces?<br \/>\nProject: Play a Game of Checkers<\/p>\n<p><strong>3-ACT MATH PREVIEW<\/strong><\/p>\n<p>Math Modeling<br \/>\nWeighed Down<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2441\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-3.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 3\" width=\"758\" height=\"500\" \/><\/p>\n<h3>Lesson 5.1 Find the Unknown Numbers<\/h3>\n<p><strong>Solve &amp; Share<\/strong><br \/>\nFind the missing number in this equation:<br \/>\n7 + _______ = 13<br \/>\nExplain how you found the missing number.<\/p>\n<p>Answer:<br \/>\nLet the missing number x<br \/>\nx = 13 &#8211; 7<br \/>\nThat means we have to take away 7 from 13.<br \/>\n13 &#8211; 7 = 6<br \/>\n7 + 6 = 13<br \/>\n13 &#8211; 7 = 6<br \/>\nThus the missing number is 6.<\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2442\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-4.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 4\" width=\"791\" height=\"246\" \/><\/p>\n<p>Convince Me! What is the missing number in the equation _______ + 4 = 9? How do you know?<\/p>\n<p>Answer: 5 + 4 = 9<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nWrite the missing numbers. Then draw or cross out counters to show your work.<\/p>\n<p>Question 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2443\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-5.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 5\" width=\"163\" height=\"174\" \/><\/p>\n<p>Question 2.<br \/>\n4 + _______ = 12<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2444\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-6.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 6\" width=\"150\" height=\"50\" \/><br \/>\nAnswer: 8<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nWrite the missing numbers. Draw counters to show your work.<\/p>\n<p>Question 3.<br \/>\n_______ &#8211; 9 = 8<br \/>\nAnswer: 17<\/p>\n<p>Question 4.<br \/>\n_______ = 8 + 3<br \/>\nAnswer: 11<\/p>\n<p>Question 5.<br \/>\n_______ + 6 = 12<br \/>\nAnswer: 6<\/p>\n<p>Question 6.<br \/>\n8 + _______ = 15<br \/>\nAnswer: 7<\/p>\n<p>Question 7.<br \/>\n14 &#8211; _______ = 6<br \/>\nAnswer: 8<\/p>\n<p>Question 8.<br \/>\n_______ = 11 &#8211; 8<br \/>\nAnswer: 3<\/p>\n<p>Question 9.<br \/>\nNumber Sense Write the missing number to make each equation true.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2445\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-7.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 7\" width=\"248\" height=\"187\" \/><br \/>\n9 +_______ = 19<br \/>\n_______ &#8211; 10 = 9<br \/>\n20 = _______ + 10<br \/>\n_______ &#8211; 10 = 10<br \/>\nAnswer:<br \/>\n9 +10 = 19<br \/>\n19 &#8211; 10 = 9<br \/>\n20 = 10 + 10<br \/>\n20 &#8211; 10 = 10<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nSolve each number story. Write the missing numbers. Use counters if needed.<\/p>\n<p>Question 10.<br \/>\nReasoning Adam wants to visit 13 states on a road trip. He has visited 7 states so far. How many states does Adam have left to visit?<br \/>\n13 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2446\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-8.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 8\" width=\"36\" height=\"40\" \/> _______ = ________<br \/>\n_________ states<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nAdam wants to visit 13 states on a road trip. He has visited 7 states so far.<br \/>\n13 &#8211; 7 = 6<br \/>\nAdam has left to visit 6 states.<\/p>\n<p>Question 11.<br \/>\nChelsea needs to make 11 costumes in all for her dance class. She has 4 costumes left to make. How many costumes did Chelsea already make?<br \/>\n11 = _________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-2446\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-8.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 8\" width=\"36\" height=\"40\" \/> _________<br \/>\n__________ costumes<br \/>\nAnswer:<br \/>\nGiven that,<br \/>\nChelsea needs to make 11 costumes in all for her dance class.<br \/>\nShe has 4 costumes left to make.<br \/>\n11 &#8211; 4 = 7<br \/>\nTherefore Chelsea already makes 7 costumes.<\/p>\n<p>Question 12.<br \/>\nHigher Order Thinking Find the missing number in the equation 5 + ___ = 14. Then write a story that matches the problem.<br \/>\nAnswer:<br \/>\n5 + _ = 14<br \/>\n5 + x = 14<br \/>\nx = 14 &#8211; 5<br \/>\nx = 9<\/p>\n<p>Question 13.<br \/>\nAssessment Practice Match each equation with the correct missing number.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2447\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-9.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 9\" width=\"331\" height=\"203\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7024\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-9-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-9\" width=\"331\" height=\"203\" \/><\/p>\n<h3>Lesson 5.2 True or False Equations<\/h3>\n<p><strong>Solve &amp; Share<\/strong><br \/>\nAn equation is true if both sides are equal. Circle the equations that are true. Show why you think so.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2448\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-10.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 10\" width=\"212\" height=\"436\" \/><\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2449\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-11.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 11\" width=\"787\" height=\"288\" \/><\/p>\n<p>Convince Me! Is the equation 4 = 11 &#8211; 6 true? Explain.<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nTell if each equation is True or False. Use the counters to help you.<br \/>\nQuestion 1.<br \/>\n5 + 2 = 9 &#8211; 3<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2450\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-12.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 12\" width=\"213\" height=\"143\" \/><\/p>\n<p>Question 2.<br \/>\n7 = 8 &#8211; 1<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2451\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-13.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 13\" width=\"186\" height=\"87\" \/><br \/>\nAnswer: True<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nTell if each equation is True or False. You can draw counters to help.<\/p>\n<p>Question 3.<br \/>\n5 + 5 = 6 + 4<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer:<br \/>\nTrue<\/p>\n<p>Question 4.<br \/>\n9 = 9 &#8211; 1<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: False<\/p>\n<p>Question 5.<br \/>\n3 + 3 = 11 &#8211; 8<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: False<\/p>\n<p>Question 6.<br \/>\n13 &#8211; 4 = 15 &#8211; 6<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: True<\/p>\n<p>Question 7.<br \/>\n7 + 7 = 12 &#8211; 5<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: False<\/p>\n<p>Question 8.<br \/>\n10 + 8 = 9 + 9<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: True<\/p>\n<p>Question 9.<br \/>\n7 + 3 = 10 + 2<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: False<\/p>\n<p>Question 10.<br \/>\n6 + 8 = 8 + 6<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: True<\/p>\n<p>Question 11.<br \/>\n4 + 2 = 6 + 1<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: False<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nWrite an equation to show the problem. Fill in the missing numbers. Then tell if the equation is True or False.<\/p>\n<p>Question 12.<br \/>\nBe Precise Shawna has 8 paper airplanes. She gives away 1 plane. Frank has 5 paper airplanes and gets 2 more.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2452\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-14.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 14\" width=\"281\" height=\"226\" \/><br \/>\n______ &#8211; ____ = ______ + _______<br \/>\nTrue<br \/>\nFalse<br \/>\nShawna has _______ planes.<br \/>\nFrank has ________ planes.<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nShawna has 8 paper airplanes.<br \/>\nShe gives away 1 plane.<br \/>\nFrank has 5 paper airplanes and gets 2 more.<br \/>\n8 &#8211; 1 = 7<br \/>\nThus Shawna has 7 planes.<br \/>\n8 &#8211; 1 = 5 + 2<br \/>\nFrank has 5 paper airplanes and gets 2 more.<br \/>\n5 + 2\u00a0 = 7<br \/>\nFrank has 7 planes.<br \/>\nThus the equation 8 &#8211; 1 = 5 + 2 is true.<\/p>\n<p>Question 13.<br \/>\n<strong>Higher Order Thinking<\/strong> Can you prove that 4 + 2 = 5 + 1 is true without solving both sides of the equation? Explain.<br \/>\nAnswer:<br \/>\nAdd 2 more to 4, we get 6<br \/>\n4 + 2 = 6<br \/>\nNow add 1 to 5, we get 6.<br \/>\n5 + 1 = 6<br \/>\n6 = 6<br \/>\nThus 4 + 2 = 5 + 1<br \/>\nThus the above equation is true.<\/p>\n<p>Question 14.<br \/>\n<strong>Assessment Practice<\/strong> Which equations shown below are false? Choose two that apply.<br \/>\n\u2610 10 &#8211; 3 = 14 &#8211; 7<br \/>\n\u2610 4 + 3 = 7 + 1<br \/>\n\u2610 6 + 6 = 8 + 3<br \/>\n\u2610 17 &#8211; 8 = 9<br \/>\nAnswer: ii, iii are false<\/p>\n<h3>Lesson 5.3 Make True Equations<\/h3>\n<p><strong>Solve &amp; Share<\/strong><br \/>\nWhat number goes in the blank to make the equation true? How do you know?<br \/>\n2 + 5 = ________ + 6<br \/>\nAnswer: 2 + 5 = 1 + 6<\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2453\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-15.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 15\" width=\"803\" height=\"314\" \/><\/p>\n<p>Convince Me! What number can you write in the blank to make this equation true? Use pictures or words to show how you know. 8 + ______ = 6 + 6<br \/>\nAnswer: 8 + 4 = 6 + 6<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nWrite the missing numbers to make the equations true. Draw counters to help.<\/p>\n<p>Question 1.<br \/>\n10 + <span style=\"text-decoration: underline;\">?<\/span> = 5 + 7<br \/>\n10 + <span style=\"text-decoration: underline;\">?<\/span> = 12<br \/>\n10 + 2 = <span style=\"text-decoration: underline;\">12<\/span><\/p>\n<p>Question 2.<br \/>\n9 &#8211; 5 = 6 &#8211; ?<br \/>\n______ = 6 &#8211; ?<br \/>\n_______ = 6 &#8211; _______<br \/>\nAnswer:<br \/>\n9 &#8211; 5 = 6 &#8211; ?<br \/>\n4 = 6 &#8211; ?<br \/>\n4 = 6 &#8211; 2<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nWrite the missing number that makes each equation true.<\/p>\n<p>Question 3.<br \/>\n______ + 6 = 4 + 9<br \/>\nAnswer: 7<br \/>\n_ + 6 = 4 + 9<br \/>\n_ + 6 = 13<br \/>\n13 &#8211; 6 = 7<br \/>\nThus you have add to 7 to make the equation true.<\/p>\n<p>Question 4.<br \/>\n14 &#8211; 7 = ______ &#8211; 3<br \/>\nAnswer: 10<br \/>\n14 &#8211; 7 = ______ &#8211; 3<br \/>\n14 &#8211; 7 = 7<br \/>\n7 = _ &#8211; 3<br \/>\n7 + 3 = 10<br \/>\nThus you have to subtract 10 to make the equation true.<\/p>\n<p>Question 5.<br \/>\n8 + ______ = 9 + 4<br \/>\nAnswer: 5<br \/>\n8 + ______ = 9 + 4<br \/>\n8 + _ = 13<br \/>\n13 &#8211; 8 = 5<br \/>\nThus you have to add 5 to make the equation true.<\/p>\n<p>Question 6.<br \/>\n10 &#8211; ______ = 7 &#8211; 3<br \/>\nAnswer: 6<br \/>\n10 &#8211; ______ = 7 &#8211; 3<br \/>\n10 &#8211; 4 = 6<br \/>\nThus you have to subtract 6 to make the equation true.<\/p>\n<p>Question 7.<br \/>\n15 \u2013 10 = 10 &#8211; ______<br \/>\nAnswer: 5<br \/>\n15 \u2013 10 = 10 &#8211; ______<br \/>\n15 &#8211; 10 = 10 &#8211; 5<br \/>\n5 = 5<br \/>\nThus you have to subtract 5 to make the equation true.<\/p>\n<p>Question 8.<br \/>\n7 + 4 = 8 + ______<br \/>\nAnswer: 3<br \/>\n7 + 4 = 8 + ______<br \/>\n11 = 8 + _<br \/>\n11 &#8211; 8 = 3<br \/>\nThus you have to add 3 to make the equation true.<\/p>\n<p>Question 9.<br \/>\n10 + 2 = ______ + 4<br \/>\nAnswer: 8<br \/>\n10 + 2 = ______ + 4<br \/>\n12 = _ + 4<br \/>\n12 &#8211; 4 = 8<br \/>\nThus you have to add 8 to make the equation true.<\/p>\n<p>Question 10.<br \/>\n13 &#8211; 10 = ______ &#8211; 7<br \/>\nAnswer: 10<br \/>\n13 &#8211; 10 = ______ &#8211; 7<br \/>\n3 = _ &#8211; 7<br \/>\n7 + 3 = 10<br \/>\nThus you have to subtract 10 to make the equation true.<\/p>\n<p>Question 11.<br \/>\n______ + 7 = 9 + 1<br \/>\nAnswer: 3<br \/>\nGiven<br \/>\n______ + 7 = 9 + 1<br \/>\n_ + 7 = 10<br \/>\n10 &#8211; 7 = 3<br \/>\nThus you have to add 3 to make the equation true.<\/p>\n<p>Question 12.<br \/>\nen Vision\u00ae STEM Kari and Chris make &#8220;telephones\u201d with paper cups and string. They take a piece of string that is 13 feet long and cut it into two pieces. One piece is 8 feet long. How long is the other piece of string? Write the missing number in the equations.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2454\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-16.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 16\" width=\"290\" height=\"241\" \/><br \/>\n______ = 13 \u2013 8<br \/>\n13 = ______ + 8<br \/>\n______ feet<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nThey take a piece of string that is 13 feet long and cut it into two pieces.<br \/>\nOne piece is 8 feet long.<br \/>\n5 = 13 \u2013 8<br \/>\n13 = 5 + 8<br \/>\n5 feet<\/p>\n<p>Problem Solving<br \/>\nSolve each problem below.<\/p>\n<p>Question 13.<br \/>\n<strong>Reasoning<\/strong> Kim has 14 tennis balls. Danny has 4 tennis balls. How many more tennis balls does Kim have than Danny?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2455\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-17.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 17\" width=\"315\" height=\"150\" \/><br \/>\nAnswer:<br \/>\nGiven,<br \/>\nKim has 14 tennis balls. Danny has 4 tennis balls.<br \/>\n14 &#8211; 4 = 10<br \/>\nTherefore Kim has 10 more tennis balls than Danny.<\/p>\n<p>Question 14.<br \/>\nRon finds 10 rocks but drops 1 rock. Anson finds 3 rocks. How many more rocks would Anson have to find to have the same number of rocks as Ron?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2456\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-18.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 18\" width=\"204\" height=\"79\" \/><br \/>\n10 &#8211; 1 = 3 + ______<br \/>\n______ more<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nRon finds 10 rocks but drops 1 rock. Anson finds 3 rocks.<br \/>\n10 &#8211; 1 = 3 + _<br \/>\n9 = 3 + 6<\/p>\n<p>Question 15.<br \/>\n<strong>Higher Order Thinking<\/strong> Jos\u00e9 has 5 red crayons and 8 blue crayons. Tasha has 10 red crayons and some blue crayons. If Tasha has the same number of crayons as Jos\u00e9, how many blue crayons does she have? Tell how you know.<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nJos\u00e9 has 5 red crayons and 8 blue crayons. Tasha has 10 red crayons and some blue crayons.<br \/>\n8 + 5 = 10 + _<br \/>\n13 = 10 + _<br \/>\n13 = 10 + 3<br \/>\nThus there are 3 blue crayons.<\/p>\n<p>Question 16.<br \/>\n<strong>Assessment Practice<\/strong> Draw an arrow to show which number will make the equation true.<br \/>\n1 2 3 4 5 6 7 8 9 10<br \/>\n4 + 7 = 5 + ______<br \/>\nAnswer:<br \/>\n4 + 7 = 5 + 6<\/p>\n<h3>Lesson 5.4 Add Three Numbers<\/h3>\n<p><strong>Solve &amp; Share<\/strong><br \/>\nCarlos made stacks of 6 books, 4 books, and 6 books. How can you use addition to find the number of books in all three stacks? Write two different equations to show how many books in all.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2457\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-19.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 19\" width=\"741\" height=\"517\" \/><\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2458\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-20.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 20\" width=\"792\" height=\"245\" \/><\/p>\n<p>Convince Me! Why can you pick any two numbers to add first when you add three numbers?<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nAdd the circled numbers first. Write their sum in the box. Then write the sum of all three numbers.<\/p>\n<p>Question 1.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2459\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-21.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 21\" width=\"205\" height=\"216\" \/><\/p>\n<p>Question 2.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2460\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-22.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 22\" width=\"201\" height=\"216\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7780\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-22-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-22\" width=\"201\" height=\"216\" \/><\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nCircle two numbers to add first. Write their sum in the box at the right. Then write the sum of all three numbers.<\/p>\n<p>Question 3.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2461\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-23.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 23\" width=\"131\" height=\"137\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7781\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-23-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-23\" width=\"131\" height=\"137\" \/><\/p>\n<p>Question 4.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2462\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-24.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 24\" width=\"115\" height=\"135\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7782\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-24-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-24\" width=\"115\" height=\"135\" \/><\/p>\n<p>Question 5.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2463\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-25.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 25\" width=\"139\" height=\"141\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7783\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-25-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-25\" width=\"139\" height=\"141\" \/><\/p>\n<p>Question 6.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2464\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-26.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 26\" width=\"111\" height=\"139\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7784\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-26-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-26\" width=\"111\" height=\"139\" \/><\/p>\n<p>Question 7.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2465\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-27.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 27\" width=\"134\" height=\"132\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7785\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-27-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-27\" width=\"134\" height=\"132\" \/><\/p>\n<p>Question 8.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2466\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-28.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 28\" width=\"120\" height=\"137\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7786\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-28-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-28\" width=\"120\" height=\"137\" \/><\/p>\n<p>Question 9.<br \/>\nNumber Sense Help Alex find the missing numbers. The numbers on each branch add up to 15.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2467\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-29.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 29\" width=\"671\" height=\"255\" \/><br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-7787\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-29-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-29\" width=\"671\" height=\"255\" \/><\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nWrite an equation to solve the problem below.<\/p>\n<p>Question 10.<br \/>\nLook for Patterns Maya puts 7 books on a shelf and 3 books on another shelf. Then she puts 5 books on the last shelf. How many books did Maya put on all three shelves?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2468\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-30.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 30\" width=\"254\" height=\"246\" \/><br \/>\n_______ + _______ = _______<br \/>\n_______ books<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nMaya puts 7 books on a shelf and 3 books on another shelf.<br \/>\nThen she puts 5 books on the last shelf.<br \/>\n7 + 3 = 10<br \/>\n10 + 5 = 15 books<br \/>\nTherefore Maya put 15 books on all three shelves.<\/p>\n<p>Question 11.<br \/>\n<strong>Higher Order Thinking<\/strong> Explain how to add 7 + 2 + 3. Use pictures, numbers, or words.<br \/>\nAnswer: 7 + 2 + 3 = 12<\/p>\n<p>Question 12.<br \/>\n<strong>Assessment Practice<\/strong> Ken buys 7 pencils, 6 markers, and 4 pens. He wants to know how many items he bought in all.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2469\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-31.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 31\" width=\"267\" height=\"80\" \/><br \/>\nWhich two numbers can he add first to make a 10?<br \/>\nA. 7 + 6<br \/>\nB. 6 + 4<br \/>\nC. 7 + 4<br \/>\nD. 5 + 4<br \/>\nAnswer: B. 6 + 4<\/p>\n<h3>Lesson 5.5 Word Problems with Three Addends<\/h3>\n<p><strong>Solve &amp; Share<\/strong><br \/>\nI have 6 oranges, Alex has 2 pears, and Jada has 4 apples. How many pieces of fruit do we have in all?<br \/>\nWrite 2 different addition equations to solve the problem.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2470\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-32.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 32\" width=\"690\" height=\"446\" \/><\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2471\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-33.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 33\" width=\"795\" height=\"275\" \/><\/p>\n<p>Convince Me! How can grouping numbers in a different way help you to solve a problem?<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nWrite an equation to solve each problem. Choose a way to group the addends.<\/p>\n<p>Question 1.<br \/>\nTess finds some shells at the beach. She finds 7 pink shells, 3 black shells, and 4 white shells. How many shells does Tess find in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2472\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-34.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 34\" width=\"459\" height=\"42\" \/><\/p>\n<p>Question 2.<br \/>\nTom sees some birds. He sees 4 red birds, 2 blue birds, and 6 black birds. How many birds does Tom see in all?<br \/>\n______ + ________ + _______ = _________<br \/>\n_______ birds<br \/>\nAnswer:<br \/>\nGiven that,<br \/>\nTom sees some birds. He sees 4 red birds, 2 blue birds, and 6 black birds.<br \/>\nAdd all the number of birds<br \/>\n4 + 2 + 6 = 12<br \/>\nThus there are 12 birds in all.<br \/>\nHence Tom sees 12 birds in all.<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nWrite an equation to solve each problem. Choose a way to group the addends.<\/p>\n<p>Question 3.<br \/>\nPat has sports cards. He has 8 baseball cards, 2 football cards, and 3 basketball cards.<br \/>\nHow many cards does Pat have in all?<br \/>\n______ + ______ + ______ = ______<br \/>\n______ cards<br \/>\nAnswer:<br \/>\nGiven data,<br \/>\nPat has sports cards. He has 8 baseball cards, 2 football cards, and 3 basketball cards.<br \/>\n8 + 2 + 3 = 10 + 3 = 13 cards<br \/>\nThus Pat has 13 cards in all.<\/p>\n<p>Question 4.<br \/>\nBob plants seeds. He plants 2 brown seeds, 6 white seeds, and 8 black seeds.<br \/>\nHow many seeds does Bob plant in all?<br \/>\n______ + ______ + ______ = ______<br \/>\n______ seeds<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nBob plants seeds. He plants 2 brown seeds, 6 white seeds, and 8 black seeds.<br \/>\n2 + 6 + 8 = 16 seeds<br \/>\nThus Bob plant 16 seeds in all.<\/p>\n<p>Write the missing numbers for each problem.<br \/>\nQuestion 5.<br \/>\nAlgebra 16 = 7 + ______ + 6<br \/>\nAnswer:<br \/>\nGiven,<br \/>\n16 = 7 + ______ + 6<br \/>\nLet the missing number be x.<br \/>\n16 = 7 + x + 6<br \/>\n16 = 13 + x<br \/>\nx = 16 &#8211; 13<br \/>\nx = 3<br \/>\nThus the missing number is 3.<\/p>\n<p>Question 6.<br \/>\nAlgebra 11 = 2 + 2 + ______<br \/>\nAnswer:<br \/>\nLet the missing number be x.<br \/>\n11 = 2 + 2 + ______<br \/>\n11 = 4 + x<br \/>\nx = 11 &#8211; 4<br \/>\nx = 7<br \/>\nThus the missing number is 7.<\/p>\n<p>Question 7.<br \/>\nVocabulary Julio finds 3 ladybugs and some ants. Then he finds 5 beetles. Julio finds 14 bugs in all. How many ants did Julio find? Write the missing addend.<br \/>\n14 = 3 + ______ + 5<br \/>\nJulio found ______ ants.<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nVocabulary Julio finds 3 ladybugs and some ants. Then he finds 5 beetles. Julio finds 14 bugs in all.<br \/>\n14 = 3 + _ + 5<br \/>\n14 = 8 + x<br \/>\nx = 14 &#8211; 8<br \/>\nx = 6<br \/>\nJulio found 6 ants.<\/p>\n<p>Question 8.<br \/>\nHigher Order Thinking Rosa picks 12 flowers from her garden. She picks some purple flowers. Then she picks 4 pink flowers and 3 yellow flowers. How many purple flowers did Rosa pick?<br \/>\n12 = <span style=\"text-decoration: underline;\">?<\/span> + 4 + 3<br \/>\nRosa picked _________ purple flowers.<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nRosa picks 12 flowers from her garden. She picks some purple flowers.<br \/>\nThen she picks 4 pink flowers and 3 yellow flowers.<br \/>\n12 = <span style=\"text-decoration: underline;\">?<\/span> + 4 + 3<br \/>\n12 = <span style=\"text-decoration: underline;\">?<\/span> + 7<br \/>\nThe missing number is 7.<br \/>\nRosa picked 7 purple flowers.<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nSolve each problem below.<\/p>\n<p>Question 9.<br \/>\nGeneralize Dan throws 3 beanbags at the target. The numbers on the target show the score for each beanbag. Write an addition equation to find Dan&#8217;s score.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2473\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-35.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 35\" width=\"313\" height=\"241\" \/><br \/>\n______ + ______ + ______ = ______<br \/>\nAnswer:<br \/>\n3 + 5\u00a0 + 7 = 15<\/p>\n<p>Question 10.<br \/>\n<strong>Higher Order Thinking<\/strong> Write a storyproblem about toys. The story should match the addition equation below. 4 + 1 + 9 = 14<br \/>\nAnswer:<\/p>\n<p>Question 11.<br \/>\n<strong>Assessment Practice<\/strong> Joy throws 3 beanbags at the target. She scores 17 points. Which picture shows her target?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2474\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-36.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 36\" width=\"270\" height=\"220\" \/><br \/>\nAnswer: A<\/p>\n<h3>Lesson 5.6 Solve Addition and Subtraction Word Problems<\/h3>\n<p><strong>Solve &amp; Share<\/strong><br \/>\nJos\u00e9 has 5 more erasers than Lois. Jos\u00e9 has 7 erasers. How many erasers does Lois have? Write your answers below.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2475\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-37.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 37\" width=\"450\" height=\"457\" \/><\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2476\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-38.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 38\" width=\"795\" height=\"261\" \/><\/p>\n<p>Convince Me! Tom made 8 fewer sandcastles than Tina. Tina made 10 sandcastles. How many sandcastles did Tom make?<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nUse the model to solve the problem.<\/p>\n<p>Question 1.<br \/>\nSal has 8 more magazines than Gemma. Sal has 15 magazines. How many magazines does Gemma have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2477\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-39.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 39\" width=\"232\" height=\"222\" \/><br \/>\nGemma has ________ magazines.<br \/>\nAnswer:<br \/>\nGiven that,<br \/>\nSal has 8 more magazines than Gemma. Sal has 15 magazines.<br \/>\n15 &#8211; 8 = 7<br \/>\n8 + 7 = 15<br \/>\nTherefore Gemma has 15 magazines.<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nUse the models to complete the problems. 2. Alan picks up 3 toys.<\/p>\n<p>Question 2.<br \/>\nAlan picks up 3 toys. Then he picks up 8 more. How many toys did Alan pick up in all?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2478\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-40.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 40\" width=\"144\" height=\"145\" \/><br \/>\n______ + _______ = ________<br \/>\nAlan picked up ________ toys in all.<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nAlan picks up 3 toys. Then he picks up 8 more.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-9012\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-40-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-40\" width=\"144\" height=\"145\" \/><br \/>\n3 + 8 = 11<br \/>\nTherefore Alan picked up 11 toys in all.<\/p>\n<p>Question 3.<br \/>\nJack makes 5 fewer fruit cups. than Sandi. Sandi makes 11 fruit cups. How many fruit cups did Jack make?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2479\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-41.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 41\" width=\"170\" height=\"107\" \/><br \/>\n________ &#8211; _________ = _________<br \/>\nJack made _________ fruit cups.<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nJack makes 5 fewer fruit cups. than Sandi. Sandi makes 11 fruit cups.<br \/>\n11 &#8211; 5 = 6<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-9013\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-41-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-41\" width=\"170\" height=\"107\" \/><br \/>\nThus Jack made 6 fruit cups.<\/p>\n<p>Fill in the missing numbers for the model and the equation. Choose addition or subtraction to solve.<\/p>\n<p>Question 4.<br \/>\nHarry has 5 fewer buttons than Tina. Harry has 7 buttons. How many buttons does Tina have?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2480\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-42.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 42\" width=\"182\" height=\"113\" \/><br \/>\n________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-2446\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-8.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 8\" width=\"36\" height=\"40\" \/> _______ = ________<br \/>\n_______ buttons<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nHarry has 5 fewer buttons than Tina. Harry has 7 buttons.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-9014\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-42-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-42\" width=\"182\" height=\"113\" \/><br \/>\n7 &#8211; 5 = 2<br \/>\nThus Tina has 2 buttons.<\/p>\n<p>Question 5.<br \/>\nMark calls some people. Jane calls 8 people. They called 17 people in all. How many people did Mark call?<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2481\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-43.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 43\" width=\"136\" height=\"149\" \/><br \/>\n________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-2446\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-8.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 8\" width=\"36\" height=\"40\" \/> _______ = ________<br \/>\n_______ people<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nMark calls some people. Jane calls 8 people. They called 17 people in all.<br \/>\n17 &#8211; 8 = 9<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-9015\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-43-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-43\" width=\"136\" height=\"149\" \/><br \/>\nThus Mark call 9 people.<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nSolve the problems below.<\/p>\n<p>Question 6.<br \/>\nMake Sense Ashlyn had some grapes. She gives 5 grapes to Anna. Now Ashlyn has 7 grapes. How many grapes did Ashlyn have before?<br \/>\n________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-2446\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-8.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 8\" width=\"36\" height=\"40\" \/> _______ = ________<br \/>\nAshlyn had _________ grapes before.<br \/>\nAnswer:<br \/>\nGiven that,<br \/>\nAshlyn had some grapes. She gives 5 grapes to Anna. Now Ashlyn has 7 grapes.<br \/>\n5 + 7 = 12<br \/>\nThus Ashlyn had 12 grapes before.<\/p>\n<p>Question 7.<br \/>\nMake Sense Lucy and Tim find 15 bottle caps together. Tim finds 7 of the bottle caps. How many of the bottle caps does Lucy find?<br \/>\n________ <img loading=\"lazy\" class=\"alignnone size-full wp-image-2446\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-8.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 8\" width=\"36\" height=\"40\" \/> _______ = ________<br \/>\nLucy finds _________ bottle caps.<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nLucy and Tim find 15 bottle caps together.<br \/>\nTim finds 7 of the bottle caps.<br \/>\n15 &#8211; 7 = 8<br \/>\nTherefore Lucy finds 8 bottle caps.<\/p>\n<p>Question 8.<br \/>\n<strong>Higher Order Thinking<\/strong> Draw a model to show the equation. Then write and solve the equation.<br \/>\n16 \u2013 10= ?<br \/>\n_______ &#8211; ________ = _______<br \/>\nAnswer: 16 &#8211; 10 = 6<\/p>\n<p>Question 9.<br \/>\n<strong>Assessment Practice<\/strong> Tanner has 3 more pets than Ava. Tanner has 7 pets. How many pets does Ava have? Use the models to solve the problem.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2482\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-44.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 44\" width=\"211\" height=\"153\" \/><br \/>\nAva has ________ pets<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nTanner has 3 more pets than Ava. Tanner has 7 pets.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-9016\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-44-1.png\" alt=\"Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-44\" width=\"211\" height=\"153\" \/><br \/>\nThus Ava has 4 pets<\/p>\n<h3>Lesson 5.7 Problem Solving<\/h3>\n<p>Precision<br \/>\n<strong>Solve &amp; Share<\/strong><br \/>\nWrite a true equation with one number on one side and three numbers on the other side. Each number should be different. Explain your reasoning.<br \/>\n_______ + _______ = _________<br \/>\nAnswer: 1 + 3 = 4<\/p>\n<p>Thinking Habits Am I using numbers and symbols correctly? Is my answer clear?<\/p>\n<p>Visual Learning Bridge<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2483\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-45.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 45\" width=\"786\" height=\"232\" \/><\/p>\n<p>Convince Me! Is the equation below true or false? How do you know? 10 + 5 = 9 + 3 + 3<\/p>\n<p><strong>Guided Practice<\/strong><br \/>\nWrite the symbol (+, -, or =) or number to make the equation true. Then tell how you know you found the correct symbol or number.<\/p>\n<p>Question 1.<br \/>\n3 + 8 = 4 + <img loading=\"lazy\" class=\"alignnone size-full wp-image-2484\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-46.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 46\" width=\"55\" height=\"55\" \/><\/p>\n<p>Question 2.<br \/>\n4 + 3 + \u2610 = 13<br \/>\nAnswer: 6<\/p>\n<p>Explanation:<br \/>\nLet the missing number be x.<br \/>\n4 + 3 + x = 13<br \/>\n7 + x = 13<br \/>\nx = 13 &#8211; 7<br \/>\nx = 6<br \/>\nThus the missing number is 6.<\/p>\n<p><strong>Independent Practice<\/strong><br \/>\nWrite the symbol (+, -, or =) or number to make the equation true. Then tell how you know you found the correct symbol or number.<\/p>\n<p>Question 3.<br \/>\n19 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 10 = 9<br \/>\nAnswer: &#8211;<br \/>\n19 &#8211; 10 = 9<br \/>\nThe correct symbol is &#8216;-&#8216;<\/p>\n<p>Question 4.<br \/>\n20 = \u2610 + 5 + 5<br \/>\nAnswer: 10<br \/>\n20 = \u2610 + 5 + 5<br \/>\n20 &#8211; 10 = \u2610<br \/>\n\u2610 = 10<br \/>\nThus the missing number is 10.<\/p>\n<p>Question 5.<br \/>\n10 + 1 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 6 + 5<br \/>\nAnswer: =<br \/>\n10 + 1 = 11<br \/>\n6 + 5 = 11<br \/>\nTherefore 10 + 1 = 6 + 5<\/p>\n<p>Question 6.<br \/>\n9 \u2013 2 = 10 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 3<br \/>\nAnswer: &#8211;<br \/>\n9 &#8211; 2 = 7<br \/>\n10 &#8211; 3 = 7<br \/>\nThus 9 &#8211; 2 = 10 &#8211; 3<\/p>\n<p>Question 7.<br \/>\nAlgebra Write the missing number in the equation below. Explain how you know.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2486\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-48.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 48\" width=\"221\" height=\"177\" \/><br \/>\n42 + 55 = 55 + \u2610<br \/>\nAnswer: 42<br \/>\n42 + 55 = 55 + 42<\/p>\n<p><strong>Problem Solving<\/strong><br \/>\nPerformance Task Balloon Party Dani has 7 green and 4 yellow balloons. Gene has 15 blue balloons.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2487\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-49.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 49\" width=\"263\" height=\"157\" \/><\/p>\n<p>Question 8.<br \/>\nExplain If Gene gives 4 of his balloons away, then he and Dani will have the same number. Fill in the blanks to make the equation true. Use +, -, or =.<br \/>\n7 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 4 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 15 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 4<br \/>\nExplain how you chose the symbols.<br \/>\n_____________________<br \/>\n_____________________<br \/>\nHow do you know the equation is true?<br \/>\nAnswer:<br \/>\n7 + 4 = 15 &#8211; 4<br \/>\n7 + 4 = 11<br \/>\n15 &#8211; 4 = 11<br \/>\nThys the true equation is 7 + 4 = 15 &#8211; 4.<\/p>\n<p>Question 9.<br \/>\nBe Precise If Gene keeps all 15 blue balloons, how many balloons would Dani need to buy to have the same number as Gene? Complete the equation to find the answer.<br \/>\n7 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 4 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> _______ <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 15<br \/>\nDid you use numbers and symbols correctly? Explain how you know.<br \/>\nAnswer: 4<br \/>\n7 + 4 = _\u00a0 + 15<br \/>\n15 &#8211; 11 = 4<\/p>\n<h3>Topic 5 Fluency Practice Activity<\/h3>\n<p>Point &amp; Tally<br \/>\nFind a partner. Get paper and a pencil. Each partner chooses a different color: light blue or dark blue. Partner I and Partner 2 each point to a black number at the same time. Subtract Partner I&#8217;s number from Partner 2&#8217;s number. If the answer is on your color, you get a tally mark. Work until one partner gets twelve tally marks.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2488\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-50.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 50\" width=\"761\" height=\"350\" \/><\/p>\n<h3>Topic 5 Vocabulary Review<\/h3>\n<p>Understand Vocabulary<br \/>\nQuestion 1.<br \/>\nCircle True or False for the addition equation below.<br \/>\n4 + 6 = 5 + 2 + 3<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: True<\/p>\n<p>Explanation:<br \/>\n4 + 6 = 10<br \/>\n5 + 2 + 3 = 10<br \/>\nThus the given equation is true.<\/p>\n<p>Question 2.<br \/>\nCircle True or False for the subtraction equation below.<br \/>\n10 = 11 &#8211; 2<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: False<\/p>\n<p>Explanation:<br \/>\n11 &#8211; 2 = 9<br \/>\n10 \u2260 9<br \/>\nThus the given equation is False.<\/p>\n<p>Question 3.<br \/>\nWrite the number you need to add to make the equation true.<br \/>\n7 &#8211; 3 = 2 + ________<br \/>\nAnswer: 2<br \/>\nGiven,<br \/>\n7 &#8211; 3 = 2 + ________<br \/>\n7 &#8211; 3 = 4<br \/>\n4 = 2 + 2<br \/>\nThus you need to add 2 to make the equation true.<\/p>\n<p>Question 4.<br \/>\nWrite the number you need to add to make the equation true.<br \/>\n_______ + 4 + 2 = 10<br \/>\nAnswer: 4<br \/>\nGiven,<br \/>\n_______ + 4 + 2 = 10<br \/>\n_ + 6 = 10<br \/>\n10 &#8211; 6 = 4<br \/>\nThus you need to add 4 to make the equation true.<\/p>\n<p>Question 5.<br \/>\nWrite the number you need to subtract to make the equation true.<br \/>\n9 = 10 &#8211; _______<br \/>\nAnswer: 1<br \/>\n10 &#8211; 1 = 9<br \/>\nThus you need to subtract 1 to make the equation true.<\/p>\n<p>Use Vocabulary in Writing<br \/>\nQuestion 6.<br \/>\nWrite a story problem with a true equation.<br \/>\nUse at least two words from the Word List.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2489\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-51.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 51\" width=\"193\" height=\"157\" \/><\/p>\n<h3>Topic 5 Reteaching<\/h3>\n<p><strong>Set A<\/strong><\/p>\n<p>Solve to find out if the equation is True or False.<br \/>\n6 + 5 = 3 + 8<br \/>\nSolve one side first. 6 + 5 = 11<br \/>\nSolve the other side. 3 + 8 = 11<br \/>\n11 = 11<br \/>\nThis equation is True.<\/p>\n<p>Tell whether each equation is True or False.<br \/>\nQuestion 1.<br \/>\n8 &#8211; 5 = 4 + 1<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: False<br \/>\n8 &#8211; 5 = 3<br \/>\n4 + 1 = 5<br \/>\n3 \u2260 5<br \/>\nThus the given equation is false.<\/p>\n<p>Question 2.<br \/>\n3 + 1 = 12 &#8211; 8<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: True<br \/>\n3 + 1 = 12 &#8211; 8<br \/>\n3 + 1 = 4<br \/>\n12 &#8211; 8 = 4<br \/>\nThus the given equation is True.<\/p>\n<p><strong>Set B<\/strong><\/p>\n<p>Write the missing numbers to make the equations true.<br \/>\n4 + 7 = 6 + _______<br \/>\nBoth sides should be equal.<br \/>\n4 + 7 = 11<br \/>\nSo, 6 + 5 = 11.<br \/>\nThe missing number is 5.<br \/>\n4 + 7 = 6 + 5<\/p>\n<p>Find and write the missing numbers to make the equations true.<br \/>\nQuestion 3.<br \/>\n11 = _______ + 4<br \/>\nAnswer:<br \/>\n11 &#8211; 4 = 7<br \/>\nThus the missing number is 7<br \/>\nThat means you have to add 7 to make the equations true.<\/p>\n<p>Question 4.<br \/>\n_______ &#8211; 4 = 5<br \/>\nAnswer:<br \/>\n5 + 4 = 9<br \/>\nThus the missing number is 9<br \/>\nThat means you have to subtract 9 to make the equations true.<\/p>\n<p>Question 5.<br \/>\n10 + 5 = 6 + _______<br \/>\nAnswer:<br \/>\n10 + 5 = 15<br \/>\n15 &#8211; 6 = 9<br \/>\nThus the missing number is 9.<br \/>\nThat means you have to add 9 to make the equations true.<\/p>\n<p>Question 6.<br \/>\n9 &#8211; _______ = 13 &#8211; 10<br \/>\nAnswer:<br \/>\n13 &#8211; 10 = 3<br \/>\n9 &#8211; 6 = 3<br \/>\nThus the missing number is 6.<br \/>\nThat means you have to subtract 6 to make the equations true.<\/p>\n<p>Question 7.<br \/>\n14 &#8211; _______ = 2 + 2<br \/>\nAnswer:<br \/>\n2 + 2 = 4<br \/>\n14 &#8211; 10 = 4<br \/>\nThus the missing number is 10.<br \/>\nThat means you have to subtract 10 to make the equations true.<\/p>\n<p><strong>Set C<\/strong><\/p>\n<p>You can add three numbers in any order.<br \/>\n2 + 8 + 2 = ?<br \/>\nMake a 10. Then add 2.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2490\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-52.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 52\" width=\"245\" height=\"111\" \/><\/p>\n<p>Find the sum. Solve in any order.<br \/>\nQuestion 8.<br \/>\n5 + 5 + 4 = ________<br \/>\nAnswer:<br \/>\nGiven,<br \/>\n5 + 5 + 4 = ________<br \/>\n5 + 5 = 10<br \/>\n10 + 4 = 14<\/p>\n<p>Question 9.<br \/>\n9 + 5 + 1 = ________<br \/>\nAnswer:<br \/>\n9 + 5 + 1 = ________<br \/>\n9 + 1 = 10<br \/>\n10 + 5 = 15<\/p>\n<p>Question 10.<br \/>\n6 + 4 + 4 = _________<br \/>\nAnswer:<br \/>\n6 + 4 + 4 = _________<br \/>\n6 + 4 = 10<br \/>\n10 + 4 = 14<\/p>\n<p>Question 11.<br \/>\n3 + 3 + 5 = ________<br \/>\nAnswer:<br \/>\n3 + 3 + 5 = ________<br \/>\n3 + 3 = 6<br \/>\n6 + 5 = 11<\/p>\n<p><strong>Set D<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-2491\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-53.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 53\" width=\"315\" height=\"306\" \/><\/p>\n<p>Write the symbol (+, -, or =) or number to make the equation true. Then tell how you know you chose the correct symbol or number.<br \/>\nQuestion 12.<br \/>\n10 \u2013 5 = 2 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 3<br \/>\nAnswer:<br \/>\n10 &#8211; 5 = 5<br \/>\n2 + 3 = 5<br \/>\nSo, the correct symbol is &#8216;+&#8217;<\/p>\n<p>Question 13.<br \/>\n4 + 5 = 10 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 1<br \/>\nAnswer:<br \/>\n4 + 5 = 9<br \/>\n10 &#8211; 1 = 9<br \/>\nSo, the correct symbol is &#8216;-&#8216;<\/p>\n<h3>Topic 5 Assessment Practice<\/h3>\n<p>Question 1.<br \/>\nA. Complete the model. Then write the missing number in the equation.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2492\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-54.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 54\" width=\"161\" height=\"160\" \/><br \/>\n14 = _______ + 9<br \/>\nAnswer:<br \/>\n14 &#8211; 9 = 5<br \/>\nThus the missing number in the equation is 5.<\/p>\n<p>B. The sum in the equation has increased by 3 to give 17 = \u2610 + 9. What is the missing number?<br \/>\n17 = _____ + 9<br \/>\nAnswer:<br \/>\n17 = \u2610 + 9<br \/>\n17 &#8211; 9 = \u2610<br \/>\n\u2610 = 8<br \/>\nThus the missing number is 8.<\/p>\n<p>Question 2.<br \/>\nA. Which number is missing?<br \/>\n16 &#8211; ? = 2 + 6<br \/>\nA. 10<br \/>\nB. 9<br \/>\nC. 8<br \/>\nD. 7<br \/>\nAnswer: C. 8<\/p>\n<p>Explanation:<br \/>\nGiven,<br \/>\n16 &#8211; ? = 2 + 6<br \/>\n16 &#8211; ? = 8<br \/>\n16 &#8211; 8 = ?<br \/>\n? = 8<br \/>\nTherefore the missing number is 8.<br \/>\nThe correct answer is option C.<\/p>\n<p>B. Write the missing numbers to make each equation true.<br \/>\n16 &#8211; _____ = 2 + 7<br \/>\n16 &#8211; _____ = 2 + 8<br \/>\n16 &#8211; _____= 2 + 9<br \/>\nAnswer:<br \/>\n16 &#8211; _____ = 2 + 7<br \/>\n16 &#8211; _ = 9<br \/>\n16 &#8211; 9 = 7<br \/>\nThus we have to subtract 7 to make the equation true.<br \/>\n16 &#8211; _____ = 2 + 8<br \/>\n16 &#8211; _ = 10<br \/>\n16 &#8211; 10 = 6<br \/>\nThus we have to subtract 10 to make the equation true.<br \/>\n16 &#8211; _____= 2 + 9<br \/>\n16 &#8211; _ = 11<br \/>\n16 &#8211; 11 = 5<br \/>\nThe missing number is 5.<br \/>\nThus we have to subtract 5 to make the equation true.<\/p>\n<p>Question 3.<br \/>\nTell if the equation is True or False.<br \/>\n4 + 7 = 13 &#8211; 3<br \/>\nTrue<br \/>\nFalse<br \/>\nAnswer: False<\/p>\n<p>Explanation:<br \/>\n4 + 7 = 11<br \/>\n13 &#8211; 3 = 10<br \/>\n11 \u2260 10<br \/>\nThus the equation is false.<\/p>\n<p>Question 4.<br \/>\nTasha has 2 dogs and 3 cats. How many more pets does Tasha need if she wants a total of 11 pets?<br \/>\n________ more pets<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nTasha has 2 dogs and 3 cats.<br \/>\n2 + 3 = 5 pets<br \/>\nIf she wants a total of 11 pets<br \/>\n11 &#8211; 5 = 6<br \/>\nthen she needs to have more 6 pets.<\/p>\n<p>Question 5.<br \/>\nBill has 10 apples. He uses 8 of them to make muffins. Josh has 6 apples. How many should he use so he has the same number as Bill?<br \/>\n10 &#8211; 8 = 6 &#8211; _________<br \/>\n_________ apples<br \/>\nAnswer: 4<\/p>\n<p>Explanation:<br \/>\nGiven,<br \/>\nBill has 10 apples.<br \/>\nHe uses 8 of them to make muffins.<br \/>\nJosh has 6 apples.<br \/>\n10 &#8211; 8 = 6 &#8211; _<br \/>\n2 = 6 &#8211; _<br \/>\n6 &#8211; 2 = _<br \/>\n_ = 4<br \/>\nTherefore he should use 4 apples.<\/p>\n<p>Question 6.<br \/>\nKerry, Tom, and Nicole want to play tennis. Kerry has 5 tennis balls. Tom has 5 tennis balls. How many tennis balls does Nicole have if they have 13 tennis balls in all?<br \/>\nA. 3<br \/>\nB. 4<br \/>\nC. 5<br \/>\nD. 6<br \/>\nAnswer: 3<\/p>\n<p>Explanation:<br \/>\nGiven,<br \/>\nKerry, Tom, and Nicole want to play tennis.<br \/>\nKerry has 5 tennis balls. Tom has 5 tennis balls.<br \/>\n5 + 5 = 13 &#8211; _<br \/>\n10 = 13 &#8211; _<br \/>\n13 &#8211; 10 = 3<br \/>\nThus the correct answer is option A.<\/p>\n<p>Question 7.<br \/>\nIn a soccer game, Andrew scores 3 fewer goals than Elsie. Elsie scores 9 goals. How many goals did Andrew score? Complete the bar diagram and write an equation to match the story.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2493\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-55.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 55\" width=\"199\" height=\"140\" \/><br \/>\n_________goals<br \/>\nAnswer: 6 goals<\/p>\n<p>Explanation:<br \/>\nIn a soccer game, Andrew scores 3 fewer goals than Elsie. Elsie scores 9 goals.<br \/>\n9 &#8211; 3 = 6 goals<\/p>\n<p>Question 8.<br \/>\nWrite the missing symbol (+, -, or =) to make the equation true. Use precise math language to explain how you chose the symbol.<br \/>\n16 = 4 + 8 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 4<br \/>\nAnswer:<br \/>\n16 = 4 + 8 + 4<br \/>\nThe correct symbol is &#8216;+&#8217;<\/p>\n<h3>Topic 5 Performance Task<\/h3>\n<p>A Vase of Flowers<br \/>\nTerry and his brother, Dave, put flowers in a vase for their mother.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-2494\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-56.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 56\" width=\"312\" height=\"315\" \/><\/p>\n<p>Question 1.<br \/>\nComplete the equation below to show the number of lilies and roses. Use numbers and symbols (+, -, =).<br \/>\n____ + 5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> _______<br \/>\nAnswer:<br \/>\nFrom the above figure we can see that there are 8 lilies and 5 roses.<br \/>\nThe total number of lilies and roses are 8 + 5 = 13<br \/>\nThus the correct symbol is 13.<\/p>\n<p>Question 2.<br \/>\nHow many roses, daisies, and carnations are in the vase?<br \/>\nWrite an equation to solve.<br \/>\n____ + ____ + ____ = ____<br \/>\nExplain how you added. Use pictures, numbers, or words.<br \/>\nAnswer:<br \/>\nFrom the above figure we can see that there are 5 roses, 5 daisies and 2 carnations<br \/>\n5 + 5 + 2 =11<\/p>\n<p>Question 3.<br \/>\nTerry puts the roses and the daisies in the vase. Dave puts the carnations and the lilies in the vase. Did they put an equal number of flowers in the vase?<br \/>\nComplete the equation.<br \/>\n____ + ___ = ____ + ____<br \/>\nFill in the missing numbers.<br \/>\nTerry puts ____ flowers in the vase.<br \/>\nDave puts ____ flowers in the vase.<br \/>\nDid Terry and Dave each put an equal number of flowers in the vase? Circle Yes or No.<br \/>\nYes<br \/>\nNo<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nTerry puts the roses and the daisies in the vase.<br \/>\nFrom the above figure we can see that there are 5 roses, 5 daisies<br \/>\n5 + 5<br \/>\nDave puts the carnations and the lilies in the vase.<br \/>\nFrom the above figure we can see that there are 2 carnations and 8 lilies<br \/>\n2 + 8 = 10<br \/>\nThe equation would be 5 + 5 = 2 + 8<br \/>\nSo, the answer is yes.<\/p>\n<p>Question 4.<br \/>\nDave says there are 3 more daisies than carnations. What equation can he use to find out if he is right?<br \/>\n5 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> _______ <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> ________<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nDave says there are 3 more daisies than carnations.<br \/>\n5 = 3 + 2<\/p>\n<p>Question 5.<br \/>\nTerry says that if there were 2 fewer lilies, then the number of lilies would be equal to the number of daisies. He writes the equation below. Is this equation true or false? Explain how you know.<br \/>\n8 &#8211; 2 = 5<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nTerry says that if there were 2 fewer lilies, then the number of lilies would be equal to the number of daisies<br \/>\n8 &#8211; 2 = 6 not 5<br \/>\nSo, the equation is false.<\/p>\n<p>Question 6.<br \/>\nTerry and Dave buy more carnations. Now they have 10 in all. How many carnations did they buy? Complete the equation using +, -, or=.<br \/>\n10 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 2 <img loading=\"lazy\" class=\"alignnone size-full wp-image-2485\" src=\"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-1st-Grade-Answers-Topic-5-Work-with-Addition-and-Subtraction-Equations-47.png\" alt=\"Envision Math Common Core 1st Grade Answers Topic 5 Work with Addition and Subtraction Equations 47\" width=\"33\" height=\"40\" \/> 8 ________ more carnations<br \/>\nUse precise math language to explain how you chose the symbols.<br \/>\nAnswer:<br \/>\nGiven,<br \/>\nTerry and Dave buy more carnations. Now they have 10 in all.<br \/>\n10 = 2 + 8<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Practice with the help of enVision Math Common Core Grade 1 Answer Key Topic 5 Work with Addition and Subtraction Equations regularly and improve your accuracy in solving questions. enVision Math Common Core 1st Grade Answers Key Topic 5 Work with Addition and Subtraction Equations Essential Question: How can adding and subtracting help Animals cannot &#8230; <a title=\"enVision Math Common Core Grade 1 Answer Key Topic 5 Work with Addition and Subtraction Equations\" class=\"read-more\" href=\"https:\/\/bigideasmathanswers.com\/envision-math-common-core-grade-1-answer-key-topic-5\/\" aria-label=\"More on enVision Math Common Core Grade 1 Answer Key Topic 5 Work with Addition and Subtraction Equations\">Read more<\/a><\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[10],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/89981"}],"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\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/comments?post=89981"}],"version-history":[{"count":1,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/89981\/revisions"}],"predecessor-version":[{"id":89982,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/posts\/89981\/revisions\/89982"}],"wp:attachment":[{"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/media?parent=89981"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/categories?post=89981"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bigideasmathanswers.com\/wp-json\/wp\/v2\/tags?post=89981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}