{"id":4166,"date":"2022-03-27T06:20:31","date_gmt":"2022-03-27T00:50:31","guid":{"rendered":"https:\/\/ccssmathanswers.com\/?p=4166"},"modified":"2022-04-07T12:27:00","modified_gmt":"2022-04-07T06:57:00","slug":"go-math-grade-5-answer-key-chapter-4-multiply-decimals","status":"publish","type":"post","link":"https:\/\/bigideasmathanswers.com\/go-math-grade-5-answer-key-chapter-4-multiply-decimals\/","title":{"rendered":"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals"},"content":{"rendered":"<p>Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals comes in handy while preparing for the exams. Go Math Grade 5 Chapter 4 Solution Key is given by the subject experts. We listed <a href=\"https:\/\/ccssmathanswers.com\/go-math-grade-5-answer-key\/\" target=\"_blank\" rel=\"noopener noreferrer\">Go Math Grade 5 Answer Key<\/a> covering the questions from Practice Test, Chapter Test, Cumulative Practice. Know how to solve various models of 5th Grade Go Math Ch 4 Multiply Decimals by referring to the Solutions Key Provided. The Best Part about or 5th Grade Ch 4 Multiply Decimals Answer Key is that we have given an elaborate explanation for all the Problems.<\/p>\n<h2>Go Math Grade 5 Chapter 4 Multiply Decimals Answer Key<\/h2>\n<p>Go Math Grade 5 Chapter 4 Multiply Decimals Solution Key covers Questions from basic to advanced level of difficulty. All the Problems are explained by subject experts and create an Interest in the Subject among the Students. If they have any difficulty in solving the Chapter 4 Lessons Problems they can cross check the detailed explanation provided below to resolve their doubts. Students can feel confident with the concepts by practicing from the 5th Grade Go Math Multiply Decimals Answer Key.<\/p>\n<p><strong>Lesson 1: Algebra \u2022 Multiplication Patterns with Decimals<\/strong><\/p>\n<ul>\n<li><a href=\"#Multiplication_Patterns_with_Decimals_-_Page_No._165\">Multiplication Patterns with Decimals &#8211; Page No. 165<\/a><\/li>\n<li><a href=\"#Multiplication_Patterns_with_Decimals_Lesson_Check_-_Page_No._166\">Multiplication Patterns with Decimals Lesson Check &#8211; Page No. 166<\/a><\/li>\n<\/ul>\n<p><strong>Lesson 2: Investigate \u2022 Multiply Decimals and Whole Numbers<\/strong><\/p>\n<ul>\n<li><a href=\"#Multiply_Decimals_and_Whole_Numbers_-_Page_No._167\">Multiply Decimals and Whole Numbers &#8211; Page No. 167<\/a><\/li>\n<li><a href=\"#Multiply_Decimals_and_Whole_Numbers_Lesson_Check_-_Page_No._168\">Multiply Decimals and Whole Numbers Lesson Check &#8211; Page No. 168<\/a><\/li>\n<\/ul>\n<p><strong>Lesson 3: Multiplication with Decimals and Whole Numbers<\/strong><\/p>\n<ul>\n<li><a href=\"#Multiplication_with_Decimals_and_Whole_Numbers_-_Page_No._171\">Multiplication with Decimals and Whole Numbers &#8211; Page No. 171<\/a><\/li>\n<li><a href=\"#Multiplication_with_Decimals_and_Whole_Numbers_Lesson_Check_-_Page_No._172\">Multiplication with Decimals and Whole Numbers Lesson Check &#8211; Page No. 172<\/a><\/li>\n<\/ul>\n<p><strong>Lesson 4: Multiply Using Expanded Form<\/strong><\/p>\n<ul>\n<li><a href=\"#Multiply_Using_Expanded_Form_-_Page_No._175\">Multiply Using Expanded Form &#8211; Page No. 175<\/a><\/li>\n<li><a href=\"#Multiply_Using_Expanded_Form_Lesson_Check_-_Page_No._176\">Multiply Using Expanded Form Lesson Check &#8211; Page No. 176<\/a><\/li>\n<\/ul>\n<p><strong>Lesson 5: Problem Solving \u2022 Multiply Money<\/strong><\/p>\n<ul>\n<li><a href=\"#Multiply_Money_-_Page_No._179\">Multiply Money &#8211; Page No. 179<\/a><\/li>\n<li><a href=\"#Multiply_Money_Lesson_Check_-_Page_No._180\">Multiply Money Lesson Check &#8211; Page No. 180<\/a><\/li>\n<\/ul>\n<p><strong>Mid-Chapter Checkpoint<\/strong><\/p>\n<ul>\n<li><a href=\"#Mid-Chapter_Checkpoint_-_Page_No._181\">Mid-Chapter Checkpoint &#8211; Page No. 181<\/a><\/li>\n<li><a href=\"#Mid-Chapter_Checkpoint_Lesson_Check_-_Page_No._182\">Mid-Chapter Checkpoint Lesson Check &#8211; Page No. 182<\/a><\/li>\n<\/ul>\n<p><strong>Lesson 6: Investigate \u2022 Decimal Multiplication<\/strong><\/p>\n<ul>\n<li><a href=\"#Decimal_Multiplication_-_Page_No._185\">Decimal Multiplication &#8211; Page No. 185<\/a><\/li>\n<li><a href=\"#Decimal_Multiplication_Lesson_Check_-_Page_No._186\">Decimal Multiplication Lesson Check &#8211; Page No. 186<\/a><\/li>\n<\/ul>\n<p><strong>Lesson 7: Multiply Decimals<\/strong><\/p>\n<ul>\n<li><a href=\"#Multiply_Decimals_-_Page_No._188\">Multiply Decimals &#8211; Page No. 188<\/a><\/li>\n<li><a href=\"#Multiply_Decimals_Lesson_Check_-_Page_No._189\">Multiply Decimals Lesson Check &#8211; Page No. 189<\/a><\/li>\n<li><a href=\"#Multiply_Decimals_Lesson_Check_1_-_Page_No._190\">Multiply Decimals Lesson Check 1 &#8211; Page No. 190<\/a><\/li>\n<\/ul>\n<p><strong>Lesson 8: Zeros in the Product<\/strong><\/p>\n<ul>\n<li><a href=\"#Zeros_in_the_Product_-_Page_No._193\">Zeros in the Product &#8211; Page No. 193<\/a><\/li>\n<li><a href=\"#Zeros_in_the_Product_Lesson_Check_-_Page_No._194\">Zeros in the Product Lesson Check &#8211; Page No. 194<\/a><\/li>\n<\/ul>\n<p><strong>Review\/Test<\/strong><\/p>\n<ul>\n<li><a href=\"#Review\/Test_-_Page_No._195\">Review\/Test &#8211; Page No. 195<\/a><\/li>\n<li><a href=\"#Review\/Test_\u2013_Page_No._196\">Review\/Test \u2013 Page No. 196<\/a><\/li>\n<li><a href=\"#Review\/Test_\u2013_Page_No._197\">Review\/Test \u2013 Page No. 197<\/a><\/li>\n<li><a href=\"#Review\/Test_\u2013_Page_No._198\">Review\/Test \u2013 Page No. 198<\/a><\/li>\n<\/ul>\n<h3><a id=\"Multiplication_Patterns_with_Decimals_-_Page_No._165\"><\/a>Share and Show &#8211; Page No. 165<\/h3>\n<p><strong>Complete the pattern.<\/strong><\/p>\n<p>Question 1.<br \/>\n10<sup>0<\/sup> \u00d7 17.04 = 17.04<br \/>\n10<sup>1<\/sup> \u00d7 17.04 = 17.04<br \/>\n10<sup>2<\/sup> \u00d7 17.04 = 17.04<br \/>\n10<sup>3<\/sup> \u00d7 17.04 = 17.04<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n10<sup>0<\/sup> \u00d7 17.04 = 17.04<br \/>\n10<sup>1<\/sup> \u00d7 17.04 = 170.4<br \/>\n10<sup>2<\/sup> \u00d7 17.04 = 1,704<br \/>\n10<sup>3<\/sup> \u00d7 17.04 =17,040<\/p>\n<p>Explanation:<br \/>\nAs you multiply by increasing powers of 10, then the position of the decimal point moves towards the right side.<br \/>\n10<sup>0<\/sup> \u00d7 17.04 = 1 x 17.04 = 17.04<br \/>\n10<sup>1<\/sup> \u00d7 17.04 = 10 x 17.04 = 170.4<br \/>\n10<sup>2<\/sup> \u00d7 17.04 = 100 x 17.04 = 1,704<br \/>\n10<sup>3<\/sup> \u00d7 17.04 = 1000 x 17.04 = 17,040<\/p>\n<p><strong>Complete the pattern.<\/strong><\/p>\n<p>Question 2.<br \/>\n1 \u00d7 3.19 = _____<br \/>\n10 \u00d7 3.19 = _____<br \/>\n100 \u00d7 3.19 = _____<br \/>\n1,000 \u00d7 3.19 = _____<\/p>\n<p>Answer:<br \/>\n1 \u00d7 3.19 = 3.19<br \/>\n10 \u00d7 3.19 = 31.9<br \/>\n100 \u00d7 3.19 = 319<br \/>\n1,000 \u00d7 3.19 = 3,190<br \/>\nAs you multiply by increasing powers of 10, then the position of the decimal point moves towards the right side.<\/p>\n<p>Question 3.<br \/>\n45.6 \u00d7 10<sup>0<\/sup> = _____<br \/>\n45.6 \u00d7 10<sup>1<\/sup> = _____<br \/>\n45.6 \u00d7 10<sup>2<\/sup> = _____<br \/>\n45.6 \u00d7 10<sup>3<\/sup> = _____<\/p>\n<p>Answer:<br \/>\n45.6 \u00d7 10<sup>0<\/sup> = 45.6<br \/>\n45.6 \u00d7 10<sup>1<\/sup> = 456<br \/>\n45.6 \u00d7 10<sup>2<\/sup> = 4,560<br \/>\n45.6 \u00d7 10<sup>3<\/sup> = 45,600<\/p>\n<p>Explanation:<br \/>\nAs you multiply by increasing powers of 10, then the position of the decimal point moves towards the right side.<br \/>\n45.6 \u00d7 10<sup>0<\/sup> = 45.6 x 1 = 45.6<br \/>\n45.6 \u00d7 10<sup>1<\/sup> = 45.6 x 10 = 456<br \/>\n45.6 \u00d7 10<sup>2<\/sup> = 45.6 x 100 = 4,560<br \/>\n45.6 \u00d7 10<sup>3<\/sup> = 45.6 x 1000 = 45,600<\/p>\n<p>Question 4.<br \/>\n1 \u00d7 6,391 = _____<br \/>\n0.1 \u00d7 6,391 = _____<br \/>\n0.01 \u00d7 6,391 = _____<\/p>\n<p>Answer:<br \/>\n1 \u00d7 6,391 = 6,391<br \/>\n0.1 \u00d7 6,391 = 639.1<br \/>\n0.01 \u00d7 6,391 = 63.91<br \/>\nAs you multiply by decreasing powers of 10, the position of the decimal point moves towards the left side<\/p>\n<p><strong>On Your Own<\/strong><\/p>\n<p><strong>Complete the pattern.<\/strong><\/p>\n<p>Question 5.<br \/>\n1.06 \u00d7 1 = _____<br \/>\n1.06 \u00d7 10 = _____<br \/>\n1.06 \u00d7 100 = _____<br \/>\n1.06 \u00d7 1,000 = _____<\/p>\n<p>Answer:<br \/>\n1.06 \u00d7 1 = 1.06<br \/>\n1.06 \u00d7 10 = 10.6<br \/>\n1.06 \u00d7 100 = 106<br \/>\n1.06 \u00d7 1,000 = 1,060<br \/>\nAs you multiply by increasing powers of 10, then the position of the decimal point moves towards the right side.<\/p>\n<p>Question 6.<br \/>\n1 \u00d7 90 = _____<br \/>\n0.1 \u00d7 90 = _____<br \/>\n0.01 \u00d7 90 = _____<\/p>\n<p>Answer:<br \/>\n1 \u00d7 90 = 90<br \/>\n0.1 \u00d7 90 = 9.0 = 9<br \/>\n0.01 \u00d7 90 = 0.9<\/p>\n<p>Explanation:<br \/>\nAs you multiply by decreasing powers of 10, the position of the decimal point moves towards the left side<br \/>\n1 \u00d7 90 = 90<br \/>\n0.1 \u00d7 90 = 9.0<br \/>\n0.01 \u00d7 90 = 0.90<\/p>\n<p>Question 7.<br \/>\n10<sup>0<\/sup> \u00d7 $0.19 = $ _____<br \/>\n10<sup>1<\/sup> \u00d7 $0.19 = $ _____<br \/>\n10<sup>2<\/sup> \u00d7 $0.19 = $ _____<br \/>\n10<sup>3<\/sup> \u00d7 $0.19 = $ _____<\/p>\n<p>Answer:<br \/>\n10<sup>0<\/sup> \u00d7 $0.19 = $ 0.19<br \/>\n10<sup>1<\/sup> \u00d7 $0.19 = $ 1.9<br \/>\n10<sup>2<\/sup> \u00d7 $0.19 = $ 19<br \/>\n10<sup>3<\/sup> \u00d7 $0.19 = $ 190<\/p>\n<p>Explanation:<br \/>\nAs you multiply by increasing powers of 10, then the position of the decimal point moves towards the right side.<br \/>\n10<sup>0<\/sup> \u00d7 $0.19 = $ 0.19<br \/>\n10<sup>1<\/sup> \u00d7 $0.19 = $ 1.9<br \/>\n10<sup>2<\/sup> \u00d7 $0.19 = $ 19<br \/>\n10<sup>3<\/sup> \u00d7 $0.19 = $ 190<\/p>\n<p>Question 8.<br \/>\n580 \u00d7 1 = _____<br \/>\n580 \u00d7 0.1 = _____<br \/>\n580 \u00d7 0.01 = _____<\/p>\n<p>Answer:<br \/>\n580 \u00d7 1 = 580<br \/>\n580 \u00d7 0.1 = 58<br \/>\n580 \u00d7 0.01 = 5.8<\/p>\n<p>Explanation:<br \/>\nAs you multiply by increasing powers of 10, then the position of the decimal point moves towards the right side.<br \/>\n580 \u00d7 1 = 580<br \/>\n580 \u00d7 0.1 = 58.0 = 58<br \/>\n580 \u00d7 0.01 = 5.8<\/p>\n<p>Question 9.<br \/>\n10<sup>0<\/sup> \u00d7 80.72 = _____<br \/>\n10<sup>1<\/sup> \u00d7 80.72 = _____<br \/>\n10<sup>2<\/sup> \u00d7 80.72 = _____<br \/>\n10<sup>3<\/sup> \u00d7 80.72 = _____<\/p>\n<p>Answer:<br \/>\n10<sup>0<\/sup> \u00d7 80.72 = 80.72<br \/>\n10<sup>1<\/sup> \u00d7 80.72 = 807.2<br \/>\n10<sup>2<\/sup> \u00d7 80.72 = 8,072<br \/>\n10<sup>3<\/sup> \u00d7 80.72 = 80,720<\/p>\n<p>Explanation:<br \/>\nAs you multiply by decreasing powers of 10, the position of the decimal point moves towards the left side<br \/>\n10<sup>0<\/sup> \u00d7 80.72 = 80.72<br \/>\n10<sup>1<\/sup> \u00d7 80.72 = 807.2<br \/>\n10<sup>2<\/sup> \u00d7 80.72 = 8,072<br \/>\n10<sup>3<\/sup> \u00d7 80.72 = 80,720<\/p>\n<p>Question 10.<br \/>\n1 \u00d7 7,230 = _____<br \/>\n0.1 \u00d7 7,230 = _____<br \/>\n0.01 \u00d7 7,230 = _____<\/p>\n<p>Answer:<br \/>\n1 \u00d7 7,230 = 7,230<br \/>\n0.1 \u00d7 7,230 = 723<br \/>\n0.01 \u00d7 7,230 = 72.3<\/p>\n<p>Explanation:<br \/>\nAs you multiply by increasing powers of 10, then the position of the decimal point moves towards the right side.<br \/>\n1 \u00d7 7,230 = 7,230<br \/>\n0.1 \u00d7 7,230 = 723.0 = 723<br \/>\n0.01 \u00d7 7,230 = 72.3<\/p>\n<p><strong>Algebra Find the value <\/strong><\/p>\n<p><strong>of n.<\/strong><\/p>\n<p>Question 11.<br \/>\nn \u00d7 $3.25 = $325.00<br \/>\nn = _____<\/p>\n<p>Answer:<br \/>\nn = 100<\/p>\n<p>Explanation:<br \/>\nn \u00d7 $3.25 = $325.00<br \/>\nn \u00d7 $3.25 = $325.00<br \/>\nn x $325 x $0.01 = $325.00<br \/>\nn x $325 x $1\/100 = $325.00<br \/>\nn =\u00a0 $325.00\/$325 x 100<br \/>\nn = 1 x 100 = 100<\/p>\n<p>Question 12.<br \/>\n0.1 \u00d7 n = 89.5<br \/>\nn = _____<\/p>\n<p>Answer:<br \/>\nn = 895<\/p>\n<p>Explanation:<br \/>\n0.1 \u00d7 n = 89.5<br \/>\n1\/10 x n = 895 x 0.1<br \/>\nn = 895 x 0.1 x 10<br \/>\nn = 895<\/p>\n<p>Question 13.<br \/>\n10<sup>3<\/sup> \u00d7 n = 630<br \/>\nn = _____<\/p>\n<p>Answer:<br \/>\nn = 0.63<\/p>\n<p>Explanation:<br \/>\n10<sup>3<\/sup> \u00d7 n = 630<br \/>\n1000 x n = 630<br \/>\nn = 630 x 1\/1000<br \/>\nn = 630 x 0.001<br \/>\nn = 0.63<\/p>\n<h3><a id=\"Multiplication_Patterns_with_Decimals_Lesson_Check_-_Page_No._166\"><\/a>Problem Solving &#8211; Page No. 166<\/h3>\n<p><strong>What\u2019s the Error?<\/strong><\/p>\n<p>Question 14.<br \/>\nKirsten is making lanyards for a convention. She needs to make 1,000 lanyards and knows that 1 lanyard uses 1.75 feet of cord. How much cord will Kirsten need?<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-1.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 1\" width=\"225\" height=\"324\" \/><br \/>\nKirsten\u2019s work is shown below.<br \/>\n1 \u00d7 1.75 = 1.75<br \/>\n10 \u00d7 1.75 = 10.75<br \/>\n100 \u00d7 1.75 = 100.75<br \/>\n1,000 \u00d7 1.75 = 1,000.75<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"172\">Find and describe Kirsten\u2019s error.<\/td>\n<td width=\"172\">Solve the problem using the correct pattern.<\/td>\n<\/tr>\n<tr>\n<td width=\"172\">As you can see from the given pattern, by multiplying 1.75 by different multiplicands, she just replaced the whole number, the number before the decimal point (in our use number 1), with belonging.<br \/>\nBut this is not the way we multiply decimal numbers with different powers of number 10.<\/td>\n<td width=\"172\">1 x 1.75= 1.75<br \/>\n10 x 1.75= 17.5<br \/>\n100 x 1.75= 175<br \/>\n1,000 x 1.75= 1,750<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>So, Kirsten needs ______ feet of cord to make 1,000 lanyards.<br \/>\nDescribe how Kirsten could have solved the problem without writing out the pattern needed.<br \/>\nType below:<br \/>\n________<\/p>\n<p>Answer:<br \/>\nKirsten needs 1,750 feet of cord to make 1,000 lanyards.<br \/>\nthat decimal point moves one Noce M the right for each increasing power of 10. So, the answer is 1,750 feet.<\/p>\n<h3><a id=\"Multiply_Decimals_and_Whole_Numbers_-_Page_No._167\"><\/a>Share and Show &#8211; Page No. 167<\/h3>\n<p><strong>Use the decimal model to find the product.<\/strong><\/p>\n<p>Question 1.<br \/>\n5 \u00d7 0.06 =<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-2.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 2\" width=\"110\" height=\"110\" \/><br \/>\n_____<\/p>\n<p>Answer:<br \/>\n5 \u00d7 0.06 = 0.3<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-2.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 2\" width=\"110\" height=\"110\" \/><\/p>\n<p>Explanation:<br \/>\nThe picture shows that 5 groups of 6 hundredths.<br \/>\n0.06 = 6 hundredths<br \/>\nEach square box shows 1\/ 100.<br \/>\nSo, shade 6 boxes 5 times to get the product.<br \/>\nCount the number of boxes shaded. There are 30 hundredths are shaded = 0.30 = 0.3<br \/>\n5 \u00d7 0.06 = 0.3<\/p>\n<p>Question 2.<br \/>\n2 \u00d7 0.38 =<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n2 \u00d7 0.38 = 0.76<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5788\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-167-image-1.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 167 image 1\" width=\"161\" height=\"162\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-167-image-1.jpg 294w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-167-image-1-150x150.jpg 150w\" sizes=\"(max-width: 161px) 100vw, 161px\" \/><\/p>\n<p>Explanation:<br \/>\nThe picture shows that 2 groups of 38 hundredths.<br \/>\n0.38 = 38 hundredths<br \/>\nEach square box shows 1\/ 100.<br \/>\nSo, shade 38 boxes 2 times to get the product. 38 hundredths + 38 hundredths = 76 hundredths = 0.76.<\/p>\n<p>Question 3.<br \/>\n4 \u00d7 0.24 =<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n4 \u00d7 0.24 = 0.96<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5792\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-167-image-2-295x300.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 167 image 2\" width=\"144\" height=\"146\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-167-image-2-295x300.jpg 295w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-167-image-2.jpg 324w\" sizes=\"(max-width: 144px) 100vw, 144px\" \/><\/p>\n<p>Explanation:<br \/>\n4 groups of 24 hundredths<br \/>\nEach square box shows 1\/ 100.<br \/>\nSo, shade 24 boxes 4 times to get the product. 24 hundredths + 24 hundredths + 24 hundredths + 24 hundredths = 96 hundredths = 0.96.<\/p>\n<p><strong>Find the product. Draw a quick picture.<\/strong><\/p>\n<p>Question 4.<br \/>\n4 \u00d7 0.6 =<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n4 \u00d7 0.6 = 2.4<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5793\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-168-image-1.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 168 image 1\" width=\"121\" height=\"147\" \/><\/p>\n<p>Explanation:<br \/>\n4 \u00d7 0.6<br \/>\n4 groups of 6 tenths<br \/>\n0.6 + 0.6 + 0.6 + 0.6 = 2.4<br \/>\n4 \u00d7 0.6 = 2.4<\/p>\n<p>Question 5.<br \/>\n2 \u00d7 0.67 =<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n2 \u00d7 0.67 = 1.34<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5794\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-168-image-2.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 168 image 2\" width=\"149\" height=\"121\" \/><\/p>\n<p>Explanation:<br \/>\n2 \u00d7 0.67<br \/>\n2 groups of 67 hundredths<br \/>\n0.67 + 0.67 = 1.34<br \/>\n2 \u00d7 0.67 = 1.34<\/p>\n<p>Question 6.<br \/>\n3 \u00d7 0.62 =<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n3 \u00d7 0.62 = 1.86<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5795\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-168-image-3-300x197.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 168 image 3\" width=\"186\" height=\"122\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-168-image-3-300x197.jpg 300w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-168-image-3.jpg 347w\" sizes=\"(max-width: 186px) 100vw, 186px\" \/><\/p>\n<p>Explanation:<br \/>\n3 \u00d7 0.62<br \/>\n3 groups of 62 hundredths<br \/>\n0.62 + 0.62 + 0.62 = 1.86<br \/>\n3 \u00d7 0.62 = 1.86<\/p>\n<p>Question 7.<br \/>\n4 \u00d7 0.32 =<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n4 \u00d7 0.32 = 1.28<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5796\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-168-image-4.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 168 image 4\" width=\"175\" height=\"105\" \/><\/p>\n<p>Explanation:<br \/>\n4 \u00d7 0.32<br \/>\n4 groups of 32 hundredths<br \/>\n0.32 + 0.32 + 0.32 + 0.32 = 1.28<br \/>\n4 \u00d7 0.32 = 1.28<\/p>\n<p>Question 8.<br \/>\nDescribe how you solved Exercise 7 using place value and renaming.<br \/>\nType below:<br \/>\n________<\/p>\n<p>Answer:<br \/>\n4 \u00d7 0.32<br \/>\n4 groups of 32 hundredths<br \/>\nThere are 32 hundredths.<br \/>\n32 hundredths there are 30 tenths and 2 hundredths.<br \/>\nCombine the tenths and rename.<br \/>\n2 + 2 + 2 + 2 = 8<br \/>\nCombine the tenths and rename.<br \/>\nThere are 3 tenths.<br \/>\n3 + 3 + 3 + 3 = 12; 2 tenths and 1 tens<br \/>\nCross out the tenths you renamed.<br \/>\nCombine the ones and rename them.<br \/>\n0 + 0 + 0 + 0 + 1 = 1<br \/>\n1.28<br \/>\n4 \u00d7 0.32 = 1.28<\/p>\n<h3><a id=\"Multiply_Decimals_and_Whole_Numbers_Lesson_Check_-_Page_No._168\"><\/a>Problem Solving &#8211; Page No. 168<\/h3>\n<p><strong>Use the table for 9\u201311.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-3.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 3\" width=\"283\" height=\"313\" \/><\/p>\n<p>Question 9.<br \/>\nEach day a bobcat drinks about 3 times as much water as a Canada goose drinks. How much water can a bobcat drink in one day?<br \/>\n_____ liter<\/p>\n<p>Answer:<br \/>\n0.72 liters<\/p>\n<p>Explanation:<br \/>\nEach day a bobcat drinks about 3 times as much water as a Canada goose drinks.<br \/>\nCanada goose = 0.24 liters<br \/>\nbobcat drinks = 3 x 0.24<br \/>\n3 x 0.24 = 0.72 liters<\/p>\n<p>Question 10.<br \/>\nRiver otters drink about 5 times as much water as a bald eagle drinks in a day. How much water can a river otter drink in one day?<br \/>\n_____ liter<\/p>\n<p>Answer:<br \/>\n0.8 liter<\/p>\n<p>Explanation:<br \/>\nRiver otters drink about 5 times as much water as a bald eagle drinks in a day.<br \/>\nbald eagle drinks 0.16 liters<br \/>\n5 times as 0.16 liters = 5 x 0.16 = 0.8 liter<\/p>\n<p>Question 11.<br \/>\nExplain how you could use a quick picture to find the amount of water that a cat drinks in 5 days.<br \/>\nType below:<br \/>\n________<\/p>\n<p>Answer:<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5798\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-168-image-5.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 168 image 5\" width=\"166\" height=\"116\" \/><\/p>\n<p>Explanation:<br \/>\nCat drinks 0.15 liters of water in a day.<br \/>\nIn 5 days, 5 x 0.15 = 0.75<\/p>\n<p>Question 12.<br \/>\nTest Prep Jared has a parakeet that weighs 1.44 ounces. Susie has a Senegal parrot that weighs 3 times as much as Jared\u2019s parakeet. How many ounces does Susie\u2019s parrot weigh?<br \/>\nOptions:<br \/>\na. 0.32 ounce<br \/>\nb. 0.43 ounce<br \/>\nc. 4.32 ounces<br \/>\nd. 43.2 ounces<\/p>\n<p>Answer:<br \/>\nc. 4.32 ounces<\/p>\n<p>Explanation:<br \/>\nJared has a parakeet that weighs 1.44 ounces. Susie has a Senegal parrot that weighs 3 times as much as Jared\u2019s parakeet.<br \/>\nSusie\u2019s parrot weigh 3 x 1.44 ounces = 4.32 ounces<\/p>\n<h3><a id=\"Multiplication_with_Decimals_and_Whole_Numbers_-_Page_No._171\"><\/a>Share and Show &#8211; Page No. 171<\/h3>\n<p><strong>Place the decimal point in the product.<\/strong><\/p>\n<p>Question 1.<br \/>\n6.81<br \/>\n\u00d7\u00a0 \u00a07<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n4767<br \/>\nThink: The place value of the decimal factor is hundredths.<\/p>\n<p>Answer:<br \/>\n6.81 x 7 = 47.67<\/p>\n<p>Explanation:<br \/>\n6.81 x 7 = 7 x 6.81<br \/>\n7 x (6 + 0.81) = (7 x 6) + (7 x 0.81) = 42 + 5.67 = 47.67<\/p>\n<p>Question 2.<br \/>\n3.7<br \/>\n\u00d7 2<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n74<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n7.4<\/p>\n<p>Explanation:<br \/>\n3.7 x 2<br \/>\n3.7 x 10 = 37<br \/>\n37 x 2 = 74<br \/>\n37 x 0.1 = 3.7<br \/>\n74 x 0.1 = 7.4<\/p>\n<p>Question 3.<br \/>\n19.34<br \/>\n\u00d7\u00a0 \u00a0 5<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n9670<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n96.7<\/p>\n<p>Explanation:<br \/>\n19.34 x 100 = 1934<br \/>\n1934 x 5 = 9670<br \/>\n1934 x 0.01 = 19.34<br \/>\n9670 x 0.01 = 96.7<\/p>\n<p><strong>Find the product.<\/strong><\/p>\n<p>Question 4.<br \/>\n6.32<br \/>\n\u00d7\u00a0 3<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n18.96<\/p>\n<p>Explanation:<br \/>\n6.32 x 100 = 632<br \/>\n632 x 3 = 1896<br \/>\n632 x 0.01 = 6.32<br \/>\n1896 x 0.01 = 18.96<\/p>\n<p>Question 5.<br \/>\n4.5<br \/>\n\u00d7 8<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n36<\/p>\n<p>Explanation:<br \/>\n4.5 x 10 = 45<br \/>\n45 x 8 = 360<br \/>\n45 x 0.1 = 4.5<br \/>\n360 x 0.1 = 36.0<\/p>\n<p>Question 6.<br \/>\n40.7<br \/>\n\u00d7\u00a0 5<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n203.5<\/p>\n<p>Explanation:<br \/>\n40.7 x 10 = 407<br \/>\n407 x 5 = 2035<br \/>\n407 x 0.1 = 40.7<br \/>\n2035 x 0.1 = 203.5<\/p>\n<p><strong>On Your Own<\/strong><\/p>\n<p><strong>Find the product.<\/strong><\/p>\n<p>Question 7.<br \/>\n4.93<br \/>\n\u00d7\u00a0 \u00a07<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n34.51<\/p>\n<p>Explanation:<br \/>\n7 x 3 = 21 hundredths; 2 tenths and 1 hundredths<br \/>\n7 x 9 = 63 tenths; 63 + 2 tenths = 65 tenths; 6 ones and 5 tenths<br \/>\n4 x 7 = 28; 28 + 6 = 34 ones;<br \/>\n34.51<\/p>\n<p>Question 8.<br \/>\n8.2<br \/>\n\u00d7 6<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n49.2<\/p>\n<p>Explanation:<br \/>\n6 x 2 = 12 tenths; 1 ones and 2 tenths<br \/>\n6 x 8 = 48; 48 + 1 = 49 ones<br \/>\n49.2<\/p>\n<p>Question 9.<br \/>\n0.49<br \/>\n\u00d7\u00a0 \u00a04<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n1.96<\/p>\n<p>Explanation:<br \/>\n9 x 4 = 36 hundredths; 3 tenths and 6 hundredths<br \/>\n4 x 4 = 16 tenths; 16 + 3 tenths = 19 tenths; 1 ones and 9 tenths<br \/>\n4 x 0 = 0; 0 + 1 = 1ones;<br \/>\n1.96<\/p>\n<p>Question 10.<br \/>\n9.08<br \/>\n\u00d7\u00a0 \u00a09<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n81.72<\/p>\n<p>Explanation:<br \/>\n9 x 8 = 72 hundredths; 7 tenths and 2 hundredths<br \/>\n9 x 0 = 0 tenths; 0 + 7 tenths = 7 tenths; 7 tenths<br \/>\n9 x 9 = 81; 81<br \/>\n81.72<\/p>\n<p>Question 11.<br \/>\n7.55<br \/>\n\u00d7\u00a0 8<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n60.4<\/p>\n<p>Explanation:<br \/>\n8 x 5 = 40 hundredths; 4 tenths and 0 hundredths<br \/>\n8 x 5 = 40 tenths; 40 + 4 tenths = 44 tenths; 4 ones and 4 tenths<br \/>\n8 x 7 = 56 ones; 56 + 4 = 60 ones<br \/>\n60.40 = 60.4<\/p>\n<p>Question 12.<br \/>\n15.37<br \/>\n\u00d7\u00a0 \u00a0 5<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n76.85<\/p>\n<p>Explanation:<br \/>\n5 x 7 = 35 hundredths; 3 tenths and 5 hundredths<br \/>\n5 x 3 = 15 tenths; 15 + 3 tenths = 18 tenths; 1 ones and 8 tenths<br \/>\n5 x 5 = 25 ones; 25 + 1 = 26 ones; 2 hundreds and 6 ones<br \/>\n5 x 1 = 5 hundreds; 5 + 2 = 7 hundreds<br \/>\n76.85<\/p>\n<p><strong>Practice: Copy and Solve Find the product.<\/strong><\/p>\n<p>Question 13.<br \/>\n8 \u00d7 7.2 = _____<\/p>\n<p>Answer:<br \/>\n8 \u00d7 7.2 = 57.6<\/p>\n<p>Explanation:<br \/>\n8 \u00d7 7.2 = 8 x (7 + 0.2) = (8 x 7) + (8 x 0.2) = 56 + 1.6 = 57.6<\/p>\n<p>Question 14.<br \/>\n3 \u00d7 1.45 = _____<\/p>\n<p>Answer:<br \/>\n3 \u00d7 1.45 = 4.35<\/p>\n<p>Explanation:<br \/>\n3 x 1.45 = 3 x (1 + 0.45) = (3 x 1) + (3 x 0.45) = 3 + 1.35 = 4.35<\/p>\n<p>Question 15.<br \/>\n9 \u00d7 8.6 = _____<\/p>\n<p>Answer:<br \/>\n9 \u00d7 8.6 = 77.4<\/p>\n<p>Explanation:<br \/>\n9 \u00d7 8.6 = 9 x (8 + 0.6) = (9 x 8) + (9 x 0.6) = 72 + 5.4 = 77.4<\/p>\n<p>Question 16.<br \/>\n6 \u00d7 0.79 = _____<\/p>\n<p>Answer:<br \/>\n6 \u00d7 0.79 = 4.74<\/p>\n<p>Explanation:<br \/>\n6 x 0.79 = 4.74<\/p>\n<p>Question 17.<br \/>\n4 \u00d7 9.3 = _____<\/p>\n<p>Answer:<br \/>\n4 \u00d7 9.3 = 37.2<\/p>\n<p>Explanation:<br \/>\n4 \u00d7 9.3 = 4 x (9 + 0.3) = (4 x 9) + (4 x 0.3) = 36 + 1.2 = 37.2<\/p>\n<p>Question 18.<br \/>\n7 \u00d7 0.81 = _____<\/p>\n<p>Answer:<br \/>\n7 \u00d7 0.81 = 5.67<\/p>\n<p>Explanation:<br \/>\n7 \u00d7 0.81 = 5.67<\/p>\n<p>Question 19.<br \/>\n6 \u00d7 2.08 = _____<\/p>\n<p>Answer:<br \/>\n6 \u00d7 2.08 = 12.48<\/p>\n<p>Explanation:<br \/>\n6 \u00d7 2.08 = 6 x (2 + 0.08) = (6 x 2) + (6 x 0.08) = 12 + 0.48 = 12.48<\/p>\n<p>Question 20.<br \/>\n5 \u00d7 23.66 = _____<\/p>\n<p>Answer:<br \/>\n5 \u00d7 23.66 = 118.3<\/p>\n<p>Explanation:<br \/>\n5 \u00d7 23.66 = 5 x (23 + 0.66) = (5 x 23) + (5 x 0.66) = 115 + 3.3 = 118.3<\/p>\n<h3><a id=\"Multiplication_with_Decimals_and_Whole_Numbers_Lesson_Check_-_Page_No._172\"><\/a>Problem Solving &#8211; Page No. 172<\/h3>\n<p><strong>Use the table for 21\u201323.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-4.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 4\" width=\"411\" height=\"313\" \/><\/p>\n<p>Question 21.<br \/>\nSari has a bag containing 6 half dollars. What is the weight of the half dollars in Sari\u2019s bag?<br \/>\n_____ grams<\/p>\n<p>Answer:<br \/>\n68.04 grams<\/p>\n<p>Explanation:<br \/>\nSari has a bag containing 6 half dollars.<br \/>\nHalf dollars = 11.34 grams<br \/>\n6 x 11.34 = 68.04 grams<br \/>\nThe weight of the half dollars in Sari\u2019s bag is 68.04 grams.<\/p>\n<p>Question 22.<br \/>\nFelicia is running a game booth at a carnival. One of the games requires participants to guess the weight, in grams, of a bag of 9 dimes. What is the actual weight of the dimes in the bag?<br \/>\n_____ grams<\/p>\n<p>Answer:<br \/>\n20.43 grams<\/p>\n<p>Explanation:<br \/>\nFelicia is running a game booth at a carnival. One of the games requires participants to guess the weight, in grams, of a bag of 9 dimes.<br \/>\n9 x 2.27 grams = 20.43 grams<\/p>\n<p>Question 23.<br \/>\nChance has $2 in quarters. Blake has $5 in dollar coins. Whose coins have the greatest weight? Explain.<br \/>\n_________<\/p>\n<p>Answer:<br \/>\nDollar coins has the greatest weight than quarters.<\/p>\n<p>Explanation:<br \/>\n$2 means 4 quarters = 4 x 5.67 = 22.68<br \/>\n$5 in dollar coins = 5 x 8.1 = 40.5<br \/>\nDollar coins has the greatest weight than quarters.<\/p>\n<p>Question 24.<br \/>\nJulie multiplies 6.27 by 7 and claims the product is 438.9. Explain without multiplying how you know Julie\u2019s answer is not correct. Find the correct answer.<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\n6.27 has two decimal digits<br \/>\n438.9 has one decimal digit<br \/>\nTherefore, Julie&#8217;s answer is not correct.<br \/>\n6.27 x 7 = 43.89<\/p>\n<p>Question 25.<br \/>\nTest Prep Every day on his way to and from school, Milo walks a total of 3.65 miles. If he walks to school 5 days, how many miles will Milo have walked?<br \/>\n_____ miles<\/p>\n<p>Answer:<br \/>\n18.25 miles<\/p>\n<p>Explanation:<br \/>\nMilo walks a total of 3.65 miles.<br \/>\nIf he walks to school 5 days, 5 x 3.65 = 18.25 miles<\/p>\n<h3><a id=\"Multiply_Using_Expanded_Form_-_Page_No._175\"><\/a>Share and Show &#8211; Page No. 175<\/h3>\n<p><strong>Draw a model to find the product.<\/strong><\/p>\n<p>Question 1.<br \/>\n19 \u00d7 0.75 =<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-5.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 5\" width=\"140\" height=\"145\" \/><br \/>\n_____<\/p>\n<p>Answer:<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5809\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-1-292x300.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 175 image 1\" width=\"165\" height=\"170\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-1-292x300.jpg 292w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-1.jpg 297w\" sizes=\"(max-width: 165px) 100vw, 165px\" \/><br \/>\n14.25<\/p>\n<p>Explanation:<br \/>\n19 \u00d7 0.75<br \/>\n19 = 10 + 9<br \/>\n0.75 = 0.7 + 0.05<br \/>\n10 x 0.7 = 7<br \/>\n10 x 0.05 = 0.5<br \/>\n9 x 0.7 = 6.3<br \/>\n9 x 0.05 = 0.45<br \/>\n7 + 0.5 + 6.3 + 0.45 = 14.25<br \/>\n19 \u00d7 0.75 = 14.25<\/p>\n<p>Question 2.<br \/>\n27 \u00d7 8.3 =<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5810\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-2-280x300.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 175 image 2\" width=\"128\" height=\"137\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-2-280x300.jpg 280w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-2.jpg 295w\" sizes=\"(max-width: 128px) 100vw, 128px\" \/><br \/>\n224.1<\/p>\n<p>Explanation:<br \/>\n27 \u00d7 8.3 = 224.1<br \/>\n27 = 20 + 7<br \/>\n8.3 = 8 + 0.3<br \/>\n20 x 8 = 160<br \/>\n20 x 0.3 = 6<br \/>\n7 x 8 = 56<br \/>\n7 x 0.3 = 2.1<br \/>\n160 + 6 + 56 + 2.1 = 224.1<\/p>\n<p><strong>Find the product.<\/strong><\/p>\n<p>Question 3.<br \/>\n18 \u00d7 8.7 = _____<\/p>\n<p>Answer:<br \/>\n18 \u00d7 8.7 = 156.6<\/p>\n<p>Explanation:<br \/>\n8.7 x 10 = 87<br \/>\n18 x 87 = 1566<br \/>\n87 x 0.1 = 8.7<br \/>\n1566 x 0.1 = 156.6<\/p>\n<p>Question 4.<br \/>\n23 \u00d7 56.1 = _____<\/p>\n<p>Answer:<br \/>\n1290.3<\/p>\n<p>Explanation:<br \/>\n56.1 x 10 = 561<br \/>\n561 x 23 = 12,903<br \/>\n561 x 0.1 = 56.1<br \/>\n12,903 x 0.1 = 1290.3<\/p>\n<p>Question 5.<br \/>\n47 \u00d7 5.92 = _____<\/p>\n<p>Answer:<br \/>\n278.24<\/p>\n<p>Explanation:<br \/>\n5.92 x 100 = 592<br \/>\n592 x 47 = 27,824<br \/>\n592 x 0.01 = 5.92<br \/>\n27,824 x 0.01 = 278.24<\/p>\n<p><strong>On Your Own<\/strong><\/p>\n<p><strong>Draw a model to find the product.<\/strong><\/p>\n<p>Question 6.<br \/>\n71 \u00d7 8.3 =<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5811\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-3-287x300.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 175 image 3\" width=\"177\" height=\"185\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-3-287x300.jpg 287w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-3.jpg 312w\" sizes=\"(max-width: 177px) 100vw, 177px\" \/><br \/>\n589.3<\/p>\n<p>Explanation:<br \/>\n71 = 70 + 1<br \/>\n8.3 = 8 + 0.3<br \/>\n70 x 8 = 560<br \/>\n70 x 0.3 = 21<br \/>\n1 x 8 = 8<br \/>\n1 x 0.3 = 0.3<br \/>\n560 + 21 + 8 + 0.3 = 589.3<\/p>\n<p>Question 7.<br \/>\n28 \u00d7 0.91 =<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5812\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-4-256x300.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 175 image 4\" width=\"141\" height=\"165\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-4-256x300.jpg 256w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-175-image-4.jpg 314w\" sizes=\"(max-width: 141px) 100vw, 141px\" \/><br \/>\n25.48<\/p>\n<p>Explanation:<br \/>\n28 = 20 + 8<br \/>\n0.91 = 0.90 + 0.01<br \/>\n20 x 0.90 = 18<br \/>\n20 x 0.01 = 0.2<br \/>\n8 x 0.90 = 7.2<br \/>\n8 x 0.01 = 0.08<br \/>\n18 + 0.2 + 7.2 + 0.08 = 25.48<\/p>\n<p><strong>Find the product.<\/strong><\/p>\n<p>Question 8.<br \/>\n19 \u00d7 0.65 = _____<\/p>\n<p>Answer:<br \/>\n19 \u00d7 0.65 = 12.35<\/p>\n<p>Explanation:<br \/>\n0.65 x 100 = 65<br \/>\n65 x 19 = 1235<br \/>\n65 x 0.01 = 0.65<br \/>\n1235 x 0.01 = 12.35<\/p>\n<p>Question 9.<br \/>\n34 \u00d7 98.3 = _____<\/p>\n<p>Answer:<br \/>\n34 \u00d7 98.3 = 3342.2<\/p>\n<p>Explanation:<br \/>\n98.3 x 10 = 983<br \/>\n983 x 34 = 33,422<br \/>\n983 x 0.1 = 98.3<br \/>\n33,422 x 0.1 = 3342.2<\/p>\n<p>Question 10.<br \/>\n26 \u00d7 16.28 = _____<\/p>\n<p>Answer:<br \/>\n26 \u00d7 16.28 = 423.28<\/p>\n<p>Explanation:<br \/>\n16.28 x 100 = 1628<br \/>\n1628 x 26 = 42,328<br \/>\n1628 x 0.01 = 16.28<br \/>\n42,328 x 0.01 = 423.28<\/p>\n<h3><a id=\"Multiply_Using_Expanded_Form_Lesson_Check_-_Page_No._176\"><\/a>UNLOCK the Problem &#8211; Page No. 176<\/h3>\n<p>Question 11.<br \/>\nWhile researching facts on the planet Earth, Kate learned that a true Earth day is about 23.93 hours long. How many hours are in 2 weeks on Earth?<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-6.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 6\" width=\"204\" height=\"210\" \/><br \/>\na. What are you being asked to find?<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\nWe need to find How many hours are in 2 weeks on Earth? 2 weeks x 23.93 hours per day?<\/p>\n<p>Question 11.<br \/>\nb. What information do you need to know to solve the problem?<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\nNumber of days in a week<br \/>\nHours per day<\/p>\n<p>Question 11.<br \/>\nc. Write an expression to represent the problem to be solved.<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\n2 weeks = 14 days<br \/>\n14 x 23.93 hours<\/p>\n<p>Question 11.<br \/>\nd. Show the steps you used to solve the problem.<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\n335.02 hours<\/p>\n<p>Explanation:<br \/>\n23.93 = 23.93 x 100 = 2393<br \/>\n2393 x 14 = 33,502<br \/>\n2393 x 0.01 = 23.93<br \/>\n33502 x 0.01 = 335.02<\/p>\n<p>Question 11.<br \/>\ne. Complete the sentences.<br \/>\nOn Earth, there are about _____ hours in a day, _____ days in 1 week, and _____ days in two weeks.<br \/>\nSince _____ \u00d7 _____ = _____ , there are about _____ hours in 2 weeks on Earth.<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\nOn Earth, there are about 23.93 hours in a day,\u00a0 7 days in 1 week, and 14 days in two weeks.<br \/>\nSince 23.93 \u00d7 14 = 335.02, there are about 335.02 hours in 2 weeks on Earth.<\/p>\n<p>Question 12.<br \/>\nMichael\u2019s favorite song is 3.19 minutes long. If he listens to the song 15 times on repeat, how long will he have listened to the same song?<br \/>\n_____ minutes<\/p>\n<p>Answer:<br \/>\n47.85 minutes<\/p>\n<p>Explanation:<br \/>\nMichael\u2019s favorite song is 3.19 minutes long.<br \/>\nIf he listens to the song 15 times, 15 x 3.19 = 47.85 minutes<\/p>\n<p>Question 13.<br \/>\nTest Prep A car travels 56.7 miles in an hour. If it continues at the same speed, how far will the car travel in 12 hours?<br \/>\nOptions:<br \/>\na. 68.004 miles<br \/>\nb. 680.04 miles<br \/>\nc. 680.4 miles<br \/>\nd. 6,804 miles<\/p>\n<p>Answer:<br \/>\nc. 680.4 miles<\/p>\n<p>Explanation:<br \/>\nA car travels 56.7 miles in an hour.<br \/>\nIn 12 hours, 12 x 56.7 = 680.4 hours<\/p>\n<h3><a id=\"Multiply_Money_-_Page_No._179\"><\/a>Share and Show &#8211; Page No. 179<\/h3>\n<p>Question 1.<br \/>\nManuel collects $45.18 for a fundraiser. Gerome collects $18.07 more than Manuel. Cindy collects 2 times as much as Gerome. How much money does Cindy collect for the fundraiser?<br \/>\nFirst, draw a diagram to show the amount Manuel collects.<br \/>\nThen, draw a diagram to show the amount Gerome collects.<br \/>\nNext, draw a diagram to show the amount Cindy collects.<br \/>\nFinally, find the amount each person collects.<br \/>\nCindy collects ______ for the fundraiser.<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\nManuel collects $45.18 for a fundraiser. Gerome collects $18.07 more than Manuel. Cindy collects 2 times as much as Gerome.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-medium wp-image-5814\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-179-image-1-300x99.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 179 image 1\" width=\"300\" height=\"99\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-179-image-1-300x99.jpg 300w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-179-image-1.jpg 758w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><br \/>\nManuel: $45.18<br \/>\nGerome: $45.18 + $18.07 = $63.25<br \/>\nCindy: 2 x $63.25 = $126.5<\/p>\n<p>Question 2.<br \/>\nWhat if Gerome collects $9.23 more than Manuel? If Cindy still collects 2 times as much as Gerome, how much money would Cindy collect?<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\nGerome collects $9.23 more than Manuel<br \/>\nManuel: $45.18<br \/>\nGerome: $45.18 + $9.23 = $54.41<br \/>\nCindy: 2 x $54.41 = $108.82<\/p>\n<p>Question 3.<br \/>\nIt costs $5.15 to rent a kayak for 1 hour at a local state park. The price per hour stays the same for up to 5 hours of rental. After 5 hours, the cost is decreased to $3.75 per hour. How much would it cost to rent a kayak for 6 hours?<br \/>\n$ ______<\/p>\n<p>Answer:<br \/>\n$29.5<\/p>\n<p>Explanation:<br \/>\nIt costs $5.15 to rent a kayak for 1 hour at a local state park. The price per hour stays the same for up to 5 hours of rental. After 5 hours, the cost is decreased to $3.75 per hour.<br \/>\nFor first 5 hours, $5.15<br \/>\nNext hour after 5 hours, it decreased to $3.75<br \/>\nFor 6 hours, 5 x $5.15 + 1 x $3.75<br \/>\n5 x $5.15 = $25.75<br \/>\n1 x $3.75 = $3.75<br \/>\n$25.75 + $3.75 = $29.5<\/p>\n<p>Question 4.<br \/>\nJenn buys a pair of jeans for $24.99. Her friend Karen spends $3.50 more for the same pair of jeans. Vicki paid the same price as Karen for the jeans but bought 2 pairs. How much did Vicki spend?<br \/>\n$ ______<\/p>\n<p>Answer:<br \/>\n$56.98<\/p>\n<p>Explanation:<br \/>\nJenn buys a pair of jeans for $24.99.<br \/>\nKaren: $24.99 + $3.50 = $28.49<br \/>\nVicky: 2 x $28.49 = $56.98<\/p>\n<h3><a id=\"Multiply_Money_Lesson_Check_-_Page_No._180\"><\/a>On Your Own &#8211; Page No. 180<\/h3>\n<p><strong>Use the sign for 5\u20138.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-7.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 7\" width=\"318\" height=\"267\" \/><\/p>\n<p>Question 5.<br \/>\nAustin shops at Surfer Joe\u2019s Surf Shop before going to the beach. He buys 2 T-shirts, a pair of board shorts, and a towel. If he gives the cashier $60, how much change will Austin get back?<br \/>\n$ ______<\/p>\n<p>Answer:<br \/>\n$2.86<\/p>\n<p>Explanation:<br \/>\nT-Shirt = $12.75<br \/>\nBoard Shorts = $25.99<br \/>\nSandals = $8.95<br \/>\nTowel = $5.65<br \/>\nSunglasses = $15.50<br \/>\nAustin shops at Surfer Joe\u2019s Surf Shop before going to the beach. He buys 2 T-shirts, a pair of board shorts, and a towel.<br \/>\n(2 x $12.75) + ($25.99) + $5.65 = $25.5 + $31.64 = $57.14<br \/>\n$60 &#8211; $57.14 = $2.86<\/p>\n<p>Question 6.<br \/>\nMaria buys 3 T-shirts and 2 pairs of sandals at Surfer Joe\u2019s Surf Shop. How much does Maria spend?<br \/>\n$ ______<\/p>\n<p>Answer:<br \/>\n$56.15<\/p>\n<p>Explanation:<br \/>\nMaria buys 3 T-shirts and 2 pairs of sandals at Surfer Joe\u2019s Surf Shop.<br \/>\n3 x $12.75 = $38.25<br \/>\n2 x $8.95 = $17.9<br \/>\n$38.25 + $17.9 = $56.15<\/p>\n<p>Question 7.<br \/>\nNathan receives a coupon in the mail for $10 off of a purchase of $100 or more. If he buys 3 pairs of board shorts, 2 towels, and a pair of sunglasses, will he spend enough to use the coupon? How much will his purchase cost?<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\n$94.77<\/p>\n<p>Explanation:<br \/>\n3 pairs of board shorts, 2 towels, and a pair of sunglasses<br \/>\n3 x $25.99 = $77.97<br \/>\n2 x $5.65 = $11.3<br \/>\nSunglasses = $15.50<br \/>\n$77.97 + $11.3 + $15.50 = $104.77<br \/>\n$10 off of a purchase of $100 or more<br \/>\n$104.77 &#8211; $10 = $94.77<\/p>\n<p>Question 8.<br \/>\nMoya spends $33.90 on 3 different items. If she did not buy board shorts, which three items did Moya buy?<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\nT-Shirt, Towel, and Sunglasses<\/p>\n<p>Explanation:<br \/>\nMoya spends $33.90 on 3 different items. If she did not buy board shorts,<br \/>\nT-Shirt = $12.75<br \/>\nTowel = $5.65<br \/>\nSunglasses = $15.50<\/p>\n<p>Question 9.<br \/>\nTest Prep At a donut shop in town, each donut costs $0.79. If Mr. Thomas buys a box of 8 donuts, how much will he pay for the donuts?<br \/>\nOptions:<br \/>\na. $6.32<br \/>\nb. $8.79<br \/>\nc. $63.20<br \/>\nd. $87.90<\/p>\n<p>Answer:<br \/>\na. $6.32<\/p>\n<p>Explanation:<br \/>\nAt a donut shop in town, each donut costs $0.79. If Mr. Thomas buys a box of 8 donuts, 8 x $0.79 = $6.32<\/p>\n<h3><a id=\"Mid-Chapter_Checkpoint_-_Page_No._181\"><\/a>Mid-Chapter Checkpoint &#8211; Page No. 181<\/h3>\n<p><strong>Concepts and Skills<\/strong><\/p>\n<p>Question 1.<br \/>\nExplain how you can use a quick picture to find 3 \u00d7 2.7.<br \/>\nType below:<br \/>\n________<\/p>\n<p>Answer:<br \/>\n3 \u00d7 2.7 = 8.1;<br \/>\nAs there are 8 ones and 1 tenths, we can draw eight square boxes and 1 line to represent 1 tenth.<\/p>\n<p><strong>Complete the pattern.<\/strong><\/p>\n<p>Question 2.<br \/>\n1 \u00d7 3.6 = _______<br \/>\n10 \u00d7 3.6 = _______<br \/>\n100 \u00d7 3.6 = _______<br \/>\n1000 \u00d7 3.6 = _______<\/p>\n<p>Answer:<br \/>\n1 \u00d7 3.6 = 3.6<br \/>\n10 \u00d7 3.6 = 36<br \/>\n100 \u00d7 3.6 = 360<br \/>\n1000 \u00d7 3.6 = 3,600<\/p>\n<p>Question 3.<br \/>\n10<sup>0<\/sup> \u00d7 17.55 = _______<br \/>\n10<sup>1<\/sup> \u00d7 17.55 = _______<br \/>\n10<sup>2<\/sup> \u00d7 17.55 = _______<br \/>\n10<sup>3<\/sup> \u00d7 17.55 = _______<\/p>\n<p>Answer:<br \/>\n10<sup>0<\/sup> \u00d7 17.55 = 17.55<br \/>\n10<sup>1<\/sup> \u00d7 17.55 = 175.5<br \/>\n10<sup>2<\/sup> \u00d7 17.55 = 1755<br \/>\n10<sup>3<\/sup> \u00d7 17.55 = 17,550<\/p>\n<p>Explanation:<br \/>\n10<sup>0<\/sup> \u00d7 17.55 = 1 x 17.55 = 17.55<br \/>\n10<sup>1<\/sup> \u00d7 17.55 = 10 x 17.55 = 175.5<br \/>\n10<sup>2<\/sup> \u00d7 17.55 = 100 x 17.55 = 1755<br \/>\n10<sup>3<\/sup> \u00d7 17.55 = 1000 x 17.55 = 17,550<\/p>\n<p>Question 4.<br \/>\n1 \u00d7 29 = _______<br \/>\n0.1 \u00d7 29 = _______<br \/>\n0.01 \u00d7 29 = _______<\/p>\n<p>Answer:<br \/>\n1 \u00d7 29 = 29<br \/>\n0.1 \u00d7 29 = 2.9<br \/>\n0.01 \u00d7 29 = 0.29<\/p>\n<p><strong>Find the product.<\/strong><\/p>\n<p>Question 5.<br \/>\n3.14<br \/>\n\u00d7\u00a0 \u00a08<br \/>\n&#8212;&#8212;&#8212;&#8211;<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n25.12<\/p>\n<p>Explanation:<br \/>\n8 x (3.14) = 8 x (3 + 0.14) = (8 x 3) + (8 x 0.14) = 24 + 1.12 = 25.12<\/p>\n<p>Question 6.<br \/>\n17 \u00d7 0.67 = _____<\/p>\n<p>Answer:<br \/>\n11.39<\/p>\n<p>Explanation:<br \/>\n0.67 x 100 = 67<br \/>\n67 x 17 = 1139<br \/>\n67 x 0.01 = 0.67<br \/>\n1139 x 0.01 = 11.39<\/p>\n<p>Question 7.<br \/>\n29 \u00d7 7.3 = _____<\/p>\n<p>Answer:<br \/>\n211.7<\/p>\n<p>Explanation:<br \/>\n29 \u00d7 7.3 = 29 x (7 + 0.3) = (29 x 7) + (29 x 0.3) = 203 + 8.7 = 211.7<\/p>\n<p><strong>Draw a diagram to solve.<\/strong><\/p>\n<p>Question 8.<br \/>\nJulie spends $5.62 at the store. Micah spends 5 times as much as Julie. Jeremy spends $6.72 more than Micah. How much money does each person spend?<br \/>\nJulie: $ _______<br \/>\nMicah: $ _______<br \/>\nJeremy: $ _______<\/p>\n<p>Answer:<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5818\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-181-image-1-300x155.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 181 image 1\" width=\"273\" height=\"141\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-181-image-1-300x155.jpg 300w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-181-image-1.jpg 656w\" sizes=\"(max-width: 273px) 100vw, 273px\" \/><br \/>\nJulie: $ 5.62<br \/>\nMicah spends 5 times as much as Julie = 5 x $5.62 = $28.1<br \/>\nJeremy spends $6.72 more than Micah = $28.1 + $6.72 = $34.82<\/p>\n<h3><a id=\"Mid-Chapter_Checkpoint_Lesson_Check_-_Page_No._182\"><\/a>Mid-Chapter Checkpoint &#8211; Page No. 182<\/h3>\n<p>Question 9.<br \/>\nSarah is cutting ribbons for a pep rally. The length of each ribbon needs to be 3.68 inches. If she needs 1,000 ribbons, what is the length of ribbon Sarah needs?<br \/>\n_____ inches<\/p>\n<p>Answer:<br \/>\n3680 inches<\/p>\n<p>Explanation:<br \/>\nSarah is cutting ribbons for a pep rally. The length of each ribbon needs to be 3.68 inches.<br \/>\nIf she needs 1,000 ribbons, 3.68 x 1,000 = 3680 inches<\/p>\n<p>Question 10.<br \/>\nAdam is carrying books to the classroom for his teacher. Each books weighs 3.85 pounds. If he carries 4 books, how many pounds is Adam carrying?<br \/>\n_____ pounds<\/p>\n<p>Answer:<br \/>\n15.4 pounds<\/p>\n<p>Explanation:<br \/>\nAdam is carrying books to the classroom for his teacher. Each books weighs 3.85 pounds. If he carries 4 books, 4 x 3.85 = 15.4 pounds.<\/p>\n<p>Question 11.<br \/>\nA car travels 54.9 miles in an hour. If the car continues at the same speed for 12 hours, how many miles will it travel?<br \/>\n_____ miles<\/p>\n<p>Answer:<br \/>\n658.8 miles<\/p>\n<p>Explanation:<br \/>\nA car travels 54.9 miles in an hour. If the car continues at the same speed for 12 hours, 12 x 54.9 = 658.8 miles<\/p>\n<p>Question 12.<br \/>\nCharlie saves $21.45 each month for 6 months. In the seventh month, he only saves $10.60. How much money will Charlie have saved after 7 months?<br \/>\n$ __________<\/p>\n<p>Answer:<br \/>\n$139.3<\/p>\n<p>Explanation:<br \/>\nCharlie saves $21.45 each month for 6 months. In the seventh month, he only saves $10.60.<br \/>\n6 x $21.45 + $10.60 = $128.7 + $10.60 = $139.3<\/p>\n<h3><a id=\"Decimal_Multiplication_-_Page_No._185\"><\/a>Share and Show &#8211; Page No. 185<\/h3>\n<p><strong>Multiply. Use the decimal model.<\/strong><\/p>\n<p>Question 1.<br \/>\n0.8 \u00d7 0.4 =<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-8.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 8\" width=\"111\" height=\"109\" \/><\/p>\n<p>Answer:<br \/>\n0.8 \u00d7 0.4 = 0.32<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5820\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-183-image-1.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 183 image 1\" width=\"111\" height=\"112\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-183-image-1.jpg 297w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-183-image-1-150x150.jpg 150w\" sizes=\"(max-width: 111px) 100vw, 111px\" \/><\/p>\n<p>Explanation:<br \/>\nThe shaded and crossed parts represent the product.<br \/>\n32 hundredths = 0.32<\/p>\n<p>Question 2.<br \/>\n0.1 \u00d7 0.7 =<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-9.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 9\" width=\"112\" height=\"111\" \/><br \/>\n_____<\/p>\n<p>Answer:<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5821\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-183-image-2-296x300.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 183 image 2\" width=\"113\" height=\"115\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-183-image-2-296x300.jpg 296w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-183-image-2.jpg 335w\" sizes=\"(max-width: 113px) 100vw, 113px\" \/><br \/>\n0.1 \u00d7 0.7 = 0.7<\/p>\n<p>Explanation:<br \/>\nCount the number of overlapped boxes to find the product. 7 tenths = 0.7<\/p>\n<p>Question 3.<br \/>\n0.4 \u00d7 1.6 =<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-10.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 10\" width=\"225\" height=\"108\" \/><br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.4 \u00d7 1.6 = 0.64<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5906\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-185-image-1-300x158.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 185 image 1\" width=\"283\" height=\"149\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-185-image-1-300x158.jpg 300w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-185-image-1.jpg 582w\" sizes=\"(max-width: 283px) 100vw, 283px\" \/><\/p>\n<p>Explanation:<br \/>\nCount the red line crossed boxes to get the product.<br \/>\n4 x 16 = 64<br \/>\n0.1 x 0.1 = 0.01<br \/>\n64 x 0.01 = 0.64<\/p>\n<p>Question 4.<br \/>\n0.3 \u00d7 0.4 =<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-11.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 11\" width=\"112\" height=\"111\" \/><br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.3 \u00d7 0.4 = 0.12<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5897\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-190-image-2.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 190 image 2\" width=\"137\" height=\"140\" \/><\/p>\n<p>Explanation:<br \/>\n3 x 4 = 12<br \/>\n0.1 x 0.1 = 0.01<br \/>\n12 x 0.01 = 0.12<\/p>\n<p>Question 5.<br \/>\n0.9 \u00d7 0.6 =<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-12.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 12\" width=\"112\" height=\"111\" \/><br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.9 x 0.6 = 0.54<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5900\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-190-image-4-300x300.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 190 image 4\" width=\"121\" height=\"121\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-190-image-4-300x300.jpg 300w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-190-image-4-150x150.jpg 150w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-190-image-4.jpg 381w\" sizes=\"(max-width: 121px) 100vw, 121px\" \/><\/p>\n<p>Explanation:<br \/>\n9 x 6 = 54<br \/>\n0.1 x 0.1 = 0.01<br \/>\n54 x 0.01 = 0.54<\/p>\n<p>Question 6.<br \/>\n0.5 \u00d7 1.2 =<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-13.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 13\" width=\"225\" height=\"108\" \/><br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.5 \u00d7 1.2 = 0.60<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5907\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-185-image-2-300x158.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 185 image 2\" width=\"292\" height=\"154\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-185-image-2-300x158.jpg 300w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-185-image-2.jpg 579w\" sizes=\"(max-width: 292px) 100vw, 292px\" \/><\/p>\n<p>Explanation:<br \/>\nCount the red line crossed boxes to get the product.<br \/>\n5 x 12 = 60<br \/>\n0.1 x 0.1 = 0.01<br \/>\n60 x 0.01 = 0.60<\/p>\n<p>Question 7.<br \/>\n0.8 \u00d7 0.9 =<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-14.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 14\" width=\"112\" height=\"111\" \/><br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.8 \u00d7 0.9 = 0.72<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5898\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-190-image-3-300x274.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 190 image 3\" width=\"138\" height=\"126\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-190-image-3-300x274.jpg 300w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-190-image-3.jpg 436w\" sizes=\"(max-width: 138px) 100vw, 138px\" \/><\/p>\n<p>Explanation:<br \/>\n8 x 9 = 72<br \/>\n0.1 x 0.1 = 0.01<br \/>\n72 x 0.01 = 0.72<\/p>\n<p>Question 8.<br \/>\n0.5 \u00d7 0.3 =<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-15.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 15\" width=\"112\" height=\"111\" \/><br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.5 \u00d7 0.3 = 0.15<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5899\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-190-image-1.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 190 image 1\" width=\"132\" height=\"131\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-190-image-1.jpg 177w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-190-image-1-150x150.jpg 150w\" sizes=\"(max-width: 132px) 100vw, 132px\" \/><\/p>\n<p>Explanation:<br \/>\n5 x 3 = 15<br \/>\n0.1 x 0.1 = 0.01<br \/>\n15 x 0.01 = 0.15<\/p>\n<p>Question 9.<br \/>\n0.5 \u00d7 1.5 =<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-16.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 16\" width=\"225\" height=\"108\" \/><br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.5 \u00d7 1.5 = 0.75<br \/>\n<img loading=\"lazy\" class=\"alignnone wp-image-5908\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-185-image-3-300x163.jpg\" alt=\"grade 5 chapter 4 Multiply Decimals 185 image 3\" width=\"274\" height=\"149\" srcset=\"https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-185-image-3-300x163.jpg 300w, https:\/\/bigideasmathanswers.com\/wp-content\/uploads\/2020\/07\/grade-5-chapter-4-Multiply-Decimals-185-image-3.jpg 587w\" sizes=\"(max-width: 274px) 100vw, 274px\" \/><\/p>\n<p>Explanation:<br \/>\nCount the red line crossed boxes to get the product.<br \/>\n5 x 15 = 75<br \/>\n0.1 x 0.1 = 0.01<br \/>\n75 x 0.01 = 0.75<\/p>\n<p>Question 10.<br \/>\nExplain why when you multiply and find one tenth of one tenth, it is equal to one hundredth.<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\nWhen you do one-tenth of one-tenth, it is one-tenth over 10 &#8212;-&gt; (1\/10) \/10<br \/>\nSo, you can consider it as (1\/10) \/ (10\/1). This is only for simplicity.<br \/>\nNow, you have to multiply the denominator of the fraction in the numerator with the numerator of fraction in denominator i.e., 10 with 10 and this comes in denominator only.<br \/>\nand numerator of fraction in the numerator with the denominator of the fraction in denominator i.e., 1 with 1.<br \/>\nSo, you get, (1*1) \/ (10*10) = 1\/100<br \/>\nThis is again the 10th part of one-tenth OR 100th part of 1 = one hundredth<\/p>\n<h3><a id=\"Decimal_Multiplication_Lesson_Check_-_Page_No._186\"><\/a>Problem Solving &#8211; Page No. 186<\/h3>\n<p><strong>Sense or Nonsense?<\/strong><\/p>\n<p>Question 11.<br \/>\nRandy and Stacy used models to find 0.3 of 0.5. Both Randy\u2019s and Stacy\u2019s models are shown below. Whose model makes sense? Whose model is nonsense? Explain your reasoning below each model. Then record the correct answer.<br \/>\nRandy\u2019s Model<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-17.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 17\" width=\"110\" height=\"110\" \/><\/p>\n<p>Stacy\u2019s Model<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-18.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 18\" width=\"109\" height=\"109\" \/><br \/>\n0.3 \u00d7 0.5 =<br \/>\n\u2022 For the answer that is nonsense, describe the error the student made.<br \/>\n_________ model is correct<\/p>\n<p>Answer:<br \/>\nRandy\u2019s Model is correct. Stacy\u2019s Model makes nonsense.<br \/>\nBecause Stacy\u2019s Model is showing 0.10 x 0.8 which is not equal to 0.3 x 0.5<\/p>\n<p>Explanation:<br \/>\nRandy and Stacy used models to find 0.3 of 0.5<br \/>\n0.3 x 0.5 = 0.15<\/p>\n<h3><a id=\"Multiply_Decimals_-_Page_No._188\"><\/a>Share and Show &#8211; Page No. 188<\/h3>\n<p><strong>Place the decimal point in the product.<\/strong><\/p>\n<p>Question 1.<br \/>\n3.62<br \/>\n\u00d7 1.4<br \/>\n&#8212;&#8212;&#8212;-<\/p>\n<p>5068<br \/>\nThink: A hundredth is being multiplied by a tenth. Use the pattern 0.01 \u00d7 0.1.<br \/>\n___<\/p>\n<p>Answer:<br \/>\n5.068<\/p>\n<p>Explanation:<br \/>\n3.62 x 100 = 362 = 362 x 0.01<br \/>\n1.4 x 10 = 14 = 14 x 0.1<br \/>\n362 x 14 = 5068<br \/>\n0.01 x 0.1 = 0.001<br \/>\n5068 x 0.001 = 5.068<\/p>\n<p>Question 2.<br \/>\n6.8<br \/>\n\u00d71.2<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n816<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n8.16<\/p>\n<p>Explanation:<br \/>\n6.8 x 10 = 68 = 68 x 0.1<br \/>\n1.2 x 10 = 12 = 12 x 0.1<br \/>\n68 x 12 = 816<br \/>\n0.1 x 0.1 = 0.01<br \/>\n816 x 0.01 = 8.16<\/p>\n<p>Find the product.<\/p>\n<p>Question 3.<br \/>\n0.9<br \/>\n\u00d7 0.8<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.72<\/p>\n<p>Explanation:<br \/>\n0.9 x 10 = 9 = 9 x 0.1<br \/>\n0.8 x 10 = 8 = 8 x 0.1<br \/>\n9 x 8 = 72<br \/>\n0.1 x 0.1 = 0.01<br \/>\n72 x 0.01 = 0.72<\/p>\n<p>Question 4.<br \/>\n84.5<br \/>\n\u00d7\u00a0 5.5<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n464.75<\/p>\n<p>Explanation:<br \/>\n84.5 x 10 = 845 = 845 x 0.1<br \/>\n5.5 x 10 = 55 = 55 x 0.1<br \/>\n845 x 55 = 46475<br \/>\n0.1 x 0.1 = 0.01<br \/>\n46475 x 0.01 = 464.75<\/p>\n<p>Question 5.<br \/>\n2.39<br \/>\n\u00d72.7<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n6.453<\/p>\n<p>Explanation:<br \/>\n2.39 x 100 = 239 = 239 x 0.01<br \/>\n2.7 x 10 = 27 = 27 x 0.1<br \/>\n239 x 27 = 6453<br \/>\n0.01 x 0.1 = 0.001<br \/>\n6453 x 0.001 = 6.453<\/p>\n<h3><a id=\"Multiply_Decimals_Lesson_Check_-_Page_No._189\"><\/a>On Your Own &#8211; Page No. 189<\/h3>\n<p><strong>Find the product.<\/strong><\/p>\n<p>Question 6.<br \/>\n7.9<br \/>\n\u00d7 3.4<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n26.86<\/p>\n<p>Explanation:<br \/>\n7.9 x 10 = 79 = 79 x 0.1<br \/>\n3.4 x 10 = 34 = 34 x 0.1<br \/>\n79 x 34 = 2686<br \/>\n0.1 x 0.1 = 0.01<br \/>\n2686 x 0.01 = 26.86<\/p>\n<p>Question 7.<br \/>\n9.2<br \/>\n\u00d75.6<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n51.52<\/p>\n<p>Explanation:<br \/>\n9.2 x 10 = 92 = 92 x 0.1<br \/>\n5.6 x 10 = 56 = 56 x 0.1<br \/>\n92 x 56 = 5152<br \/>\n0.1 x 0.1 = 0.01<br \/>\n5152 x 0.01 = 51.52<\/p>\n<p>Question 8.<br \/>\n3.45<br \/>\n\u00d7 9.7<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n33.465<\/p>\n<p>Explanation:<br \/>\n3.45 x 100 = 345 = 345 x 0.01<br \/>\n9.7 x 10 = 97 = 97 x 0.1<br \/>\n345 x 97 = 33465<br \/>\n0.01 x 0.1 = 0.001<br \/>\n33465 x 0.001 = 33.465<\/p>\n<p>Question 9.<br \/>\n45.3<br \/>\n\u00d7 0.8<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n36.24<\/p>\n<p>Explanation:<br \/>\n45.3 x 10 = 453 = 453 x 0.1<br \/>\n0.8 x 10 = 8 = 8 x 0.1<br \/>\n453 x 8 = 3624<br \/>\n0.1 x 0.1 = 0.01<br \/>\n3624 x 0.01 = 36.24<\/p>\n<p>Question 10.<br \/>\n6.98<br \/>\n\u00d7 2.5<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n17.450<\/p>\n<p>Explanation:<br \/>\n6.98 x 100 = 698 = 698 x 0.01<br \/>\n2.5 x 10 = 25 = 25 x 0.1<br \/>\n698 x 25 = 17,450<br \/>\n0.01 x 0.1 = 0.001<br \/>\n17450 x 0.001 = 17.450<\/p>\n<p>Question 11.<br \/>\n7.02<br \/>\n\u00d73.4<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n23.868<\/p>\n<p>Explanation:<br \/>\n7.02 x 100 = 702 = 702 x 0.01<br \/>\n3.4 x 10 = 34 = 34 x 0.1<br \/>\n702 x 34 = 23868<br \/>\n0.01 x 0.1 = 0.001<br \/>\n23868 x 0.001 = 23.868<\/p>\n<p>Question 12.<br \/>\n14.9<br \/>\n\u00d70.35<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n5.215<\/p>\n<p>Explanation:<br \/>\n14.9 x 10 = 149 = 149 x 0.1<br \/>\n0.35 x 100 = 35 = 35 x 0.01<br \/>\n149 x 35 = 5215<br \/>\n0.1 x 0.01 = 0.001<br \/>\n5215 x 0.001 = 5.215<\/p>\n<p>Question 13.<br \/>\n50.99<br \/>\n\u00d7\u00a0 3.7<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n188.663<\/p>\n<p>Explanation:<br \/>\n50.99 x 100 = 5099 = 5099 x 0.01<br \/>\n3.7 x 10 = 37 = 37 x 0.1<br \/>\n5099 x 37 = 188663<br \/>\n0.01 x 0.1 = 0.001<br \/>\n188663 x 0.001 = 188.663<\/p>\n<p>Question 14.<br \/>\n18.43<br \/>\n\u00d7\u00a0 1.9<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n35.017<\/p>\n<p>Explanation:<br \/>\n18.43 x 100 = 1843 = 1843 x 0.01<br \/>\n1.9 x 10 = 19 = 19 x 0.1<br \/>\n1843 x 19 = 35017<br \/>\n0.01 x 0.1 = 0.001<br \/>\n35017 x 0.001 = 35.017<\/p>\n<p><strong>Practice: Copy and Solve Find the product.<\/strong><\/p>\n<p>Question 15.<br \/>\n3.4 \u00d7 5.2 = _____<\/p>\n<p>Answer:<br \/>\n17.68<\/p>\n<p>Explanation:<br \/>\n3.4 \u00d7 5.2<br \/>\n34 x 52 = 1768<br \/>\n0.1 x 0.1 = 0.01<br \/>\n1768 x 0.01 = 17.68<\/p>\n<p>Question 16.<br \/>\n0.9 \u00d7 2.46 = _____<\/p>\n<p>Answer:<br \/>\n2.214<\/p>\n<p>Explanation:<br \/>\n9 x 246 = 2214<br \/>\n0.1 x 0.01 = 0.001<br \/>\n2214 x 0.001 = 2.214<\/p>\n<p>Question 17.<br \/>\n9.1 \u00d7 5.7 = ____<\/p>\n<p>Answer:<br \/>\n51.87<\/p>\n<p>Explanation:<br \/>\n91 x 57 = 5187<br \/>\n0.1 x 0.1 = 0.01<br \/>\n5187 x 0.01 = 51.87<\/p>\n<p>Question 18.<br \/>\n4.8 \u00d7 6.01 = _____<\/p>\n<p>Answer:<br \/>\n28.848<\/p>\n<p>Explanation:<br \/>\n48 x 601 = 28848<br \/>\n0.1 x 0.01 = 0.001<br \/>\n28848 x 0.001 = 28.848<\/p>\n<p>Question 20.<br \/>\n7.6 \u00d7 18.7 = _____<\/p>\n<p>Answer:<br \/>\n142.12<\/p>\n<p>Explanation:<br \/>\n76 x 187 = 14212<br \/>\n0.1 x 0.1 = 0.01<br \/>\n14212 x 0.01 = 142.12<\/p>\n<p>Question 21.<br \/>\n0.77 \u00d7 14.9 = _____<\/p>\n<p>Answer:<br \/>\n114.73<\/p>\n<p>Explanation:<br \/>\n77 x 149 = 11473<br \/>\n0.01 x 0.1 = 0.01<br \/>\n11473 x 0.01 = 114.73<\/p>\n<p>Question 22.<br \/>\n3.3 \u00d7 58.14 = _____<\/p>\n<p>Answer:<br \/>\n191.862<\/p>\n<p>Explanation:<br \/>\n33 x 5814 = 191862<br \/>\n0.1 x 0.01 = 0.001<br \/>\n191862 x 0.001 = 191.862<\/p>\n<h3><a id=\"Multiply_Decimals_Lesson_Check_1_-_Page_No._190\"><\/a>Problem Solving &#8211; Page No. 190<\/h3>\n<p><img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-19.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 19\" width=\"177\" height=\"233\" \/><\/p>\n<p>Question 23.<br \/>\nCharlie has an adult Netherlands dwarf rabbit that weighs 1.2 kilograms. Cliff\u2019s adult Angora rabbit weighs 2.9 times as much as Charlie\u2019s rabbit. How much does Cliff\u2019s rabbit weigh?<br \/>\n_____ kilograms<\/p>\n<p>Answer:<br \/>\n3.48 kilograms<\/p>\n<p>Explanation:<br \/>\nCharlie has an adult Netherlands dwarf rabbit that weighs 1.2 kilograms. Cliff\u2019s adult Angora rabbit weighs 2.9 times as much as Charlie\u2019s rabbit.<br \/>\n1.2 x 2.9 = 3.48 kilograms<\/p>\n<p>Question 24.<br \/>\nJohn has pet rabbits in an enclosure that has an area of 30.72 square feet. The enclosure Taylor is planning to build for his rabbits will be 2.2 times as large as John\u2019s. What will be the area of the enclosure Taylor is planning to build?<br \/>\n_____ square feet<\/p>\n<p>Answer:<br \/>\n67.584 square feet<\/p>\n<p>Explanation:<br \/>\nJohn has pet rabbits in an enclosure that has an area of 30.72 square feet. The enclosure Taylor is planning to build for his rabbits will be 2.2 times as large as John\u2019s.<br \/>\n30.72 x 2.2 = 67.584 square feet<\/p>\n<p>Question 25.<br \/>\nA zoo is planning a new building for the penguin exhibit. First, they made a model that was 1.3 meters tall. Then, they made a more detailed model that was 1.5 times as tall as the first model. The building will be 2.5 times as tall as the height of the detailed model. What will be the height of the building?<br \/>\n_____ meters<\/p>\n<p>Answer:<br \/>\n4.875 meters<\/p>\n<p>Explanation:<br \/>\nA zoo is planning a new building for the penguin exhibit. First, they made a model that was 1.3 meters tall. Then, they made a more detailed model that was 1.5 times as tall as the first model.<br \/>\n1.3 x 1.5 = 1.95<br \/>\nThe building will be 2.5 times as tall as the height of the detailed model.<br \/>\n2.5 x 1.95 = 4.875 meters<\/p>\n<p>Question 26.<br \/>\nLeslie and Paul both solve the multiplication problem 5.5 x 4.6. Leslie says the answer is 25.30. Paul says the answer is 25.3. Whose answer is correct? Explain your reasoning.<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\nBoth answers are correct. Because 25.30 = 25.3. The zeros have no value after the decimal point of a number.<\/p>\n<p>Explanation:<br \/>\n5.5 x 4.6<br \/>\n55 x 46 = 2530<br \/>\n0.1 x 0.1 = 0.01<br \/>\n2530 x 0.01 = 25.30 = 25.3<\/p>\n<p>Question 27.<br \/>\nTest Prep A vine in Mr. Jackson\u2019s garden is 3.6 feet long. When it is measured again, it is 2.1 times as long. How long is the vine?<br \/>\nOptions:<br \/>\na. 5.7 feet<br \/>\nb. 6.6 feet<br \/>\nc. 7.5 feet<br \/>\nd. 7.56 feet<\/p>\n<p>Answer:<br \/>\na. 5.7 feet<\/p>\n<p>Explanation:<br \/>\nA vine in Mr. Jackson\u2019s garden is 3.6 feet long. When it is measured again, it is 2.1 times as long.<br \/>\n3.6 + 2.1 = 5.7 feet<\/p>\n<h3><a id=\"Zeros_in_the_Product_-_Page_No._193\"><\/a>Share and Show &#8211; Page No. 193<\/h3>\n<p><strong>Write zeros in the product.<\/strong><\/p>\n<p>Question 1.<br \/>\n0.05<br \/>\n\u00d7 0.7<br \/>\n&#8212;&#8212;&#8212;-<\/p>\n<p>Answer:<\/p>\n<p>Explanation:<\/p>\n<p>\u25a135<br \/>\nThink: Hundredths are multiplied by tenths. What should be the place value of the product?<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.035<\/p>\n<p>Explanation:<br \/>\n5 x 7 = 35<br \/>\n0.01 x 0.1 = 0.001<br \/>\n35 x 0.001 = 0.035<\/p>\n<p>Question 2.<br \/>\n0.2<br \/>\n\u00d7 0.3<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.06<\/p>\n<p>Explanation:<br \/>\n2 x 3 = 6<br \/>\n0.1 x 0.1 = 0.01<br \/>\n6 x 0.01 = 0.06<\/p>\n<p>Question 3.<br \/>\n0.02<br \/>\n\u00d7 0.2<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.004<\/p>\n<p>Explanation:<br \/>\n2 x 2 = 4<br \/>\n0.01 x 0.1 = 0.001<br \/>\n4 x 0.001 = 0.004<\/p>\n<p><strong>Find the product.<\/strong><\/p>\n<p>Question 4.<br \/>\n$0.05<br \/>\n\u00d7 0.8<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n$ _____<\/p>\n<p>Answer:<br \/>\n$0.04<\/p>\n<p>Explanation:<br \/>\n5 x 8 = 40<br \/>\n0.01 x 0.1 = 0.001<br \/>\n40 x 0.001 = 0.040 = 0.04<\/p>\n<p>Question 5.<br \/>\n0.09<br \/>\n\u00d7 0.7<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.063<\/p>\n<p>Explanation:<br \/>\n9 x 7 = 63<br \/>\n0.01 x 0.1 = 0.001<br \/>\n63 x 0.001 = 0.063<\/p>\n<p>Question 6.<br \/>\n0.2<br \/>\n\u00d7 0.1<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.02<\/p>\n<p>Explanation:<br \/>\n2 x 1 = 2<br \/>\n0.1 x 0.1 = 0.01<br \/>\n2 x 0.01 = 0.02<\/p>\n<p><strong>On Your Own<\/strong><\/p>\n<p><strong>Find the product.<\/strong><\/p>\n<p>Question 7.<br \/>\n0.3<br \/>\n\u00d7 0.3<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.09<\/p>\n<p>Explanation:<br \/>\n3 x 3 = 9<br \/>\n0.1 x 0.1 = 0.01<br \/>\n9 x 0.01 = 0.09<\/p>\n<p>Question 8.<br \/>\n0.05<br \/>\n\u00d7 0.3<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.015<\/p>\n<p>Explanation:<br \/>\n5 x 3 = 15<br \/>\n0.01 x 0.1 = 0.001<br \/>\n15 x 0.001 = 0.015<\/p>\n<p>Question 9.<br \/>\n0.02<br \/>\n\u00d7 0.4<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.008<\/p>\n<p>Explanation:<br \/>\n2 x 4 = 8<br \/>\n0.01 x 0.1 = 0.001<br \/>\n8 x 0.001 = 0.008<\/p>\n<p>Question 10.<br \/>\n$0.40<br \/>\n\u00d7 0.1<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n$ _____<\/p>\n<p>Answer:<br \/>\n$0.04<\/p>\n<p>Explanation:<br \/>\n40 x 1 = 40<br \/>\n0.10 x 0.1 = 0.010<br \/>\n40 x 0.010 = 0.04<\/p>\n<p>Question 11.<br \/>\n0.09<br \/>\n\u00d7 0.2<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.018<\/p>\n<p>Explanation:<br \/>\n9 x 2 = 18<br \/>\n0.01 x 0.1 = 0.001<br \/>\n18 x 0.001 = 0.018<\/p>\n<p>Question 12.<br \/>\n$ 0.05<br \/>\n\u00d7 0.6<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n$0.3<\/p>\n<p>Explanation:<br \/>\n5 x 6 = 30<br \/>\n0.01 x 0.1 = 0.001<br \/>\n30 x 0.001 = 0.30 = 0.3<\/p>\n<p>Question 13.<br \/>\n0.04<br \/>\n\u00d7 0.5<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.020<\/p>\n<p>Explanation:<br \/>\n4 x 5 = 20<br \/>\n0.01 x 0.1 = 0.001<br \/>\n20 x 0.001 = 0.020<\/p>\n<p>Question 14.<br \/>\n0.06<br \/>\n\u00d7 0.8<br \/>\n&#8212;&#8212;&#8212;-<br \/>\n_____<\/p>\n<p>Answer:<br \/>\n0.048<\/p>\n<p>Explanation:<br \/>\n6 x 8 = 48<br \/>\n0.01 x 0.1 = 0.001<br \/>\n48 x 0.001 = 0.048<\/p>\n<p><strong>Algebra Find the value of n.<\/strong><\/p>\n<p>Question 15.<br \/>\n0.03 \u00d7 0.6 = n<br \/>\nn = _____<\/p>\n<p>Answer:<br \/>\nn = 0.018<\/p>\n<p>Explanation:<br \/>\n0.03 \u00d7 0.6 = n<br \/>\n0.018 = n<br \/>\nn = 0.018<\/p>\n<p>Question 16.<br \/>\nn \u00d7 0.2 = 0.08<br \/>\nn = _____<\/p>\n<p>Answer:<br \/>\nn = 0.4<\/p>\n<p>Explanation:<br \/>\nn \u00d7 0.2 = 0.08<br \/>\nn = 0.08\/0.2<br \/>\nn = 0.4<\/p>\n<p>Question 17.<br \/>\n0.09 \u00d7 n = 0.063<br \/>\nn = _____<\/p>\n<p>Answer:<br \/>\nn = 0.7<\/p>\n<p>Explanation:<br \/>\n0.09 \u00d7 n = 0.063<br \/>\nn = 0.063\/0.09<br \/>\nn = 0.7<\/p>\n<h3><a id=\"Zeros_in_the_Product_Lesson_Check_-_Page_No._194\"><\/a>Page No. 194<\/h3>\n<p>Question 18.<br \/>\nOn an average day, a garden snail can travel about 0.05 mile. If a snail travels 0.2 times as far as the average distance in a day, how far can it travel?<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-20.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals img 20\" width=\"312\" height=\"195\" \/><br \/>\na. What are you being asked to find?<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\nWe need to find how far snail travels on 0.2 times as far as the average distance in a day?<\/p>\n<p>Question 18.<br \/>\nb. What information will you use to solve the problem?<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\nOn an average day, a garden snail can travel about 0.05 miles.<br \/>\n0.2 times as far as the average distance in a day<\/p>\n<p>Question 18.<br \/>\nc. How will you use multiplication and place value to solve the problem?<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\n0.2 x 0.05<\/p>\n<p>Question 18.<br \/>\nd. Show how you will solve the problem.<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\n2 x 5 = 10<br \/>\n0.1 x 0.01 = 0.001<br \/>\n10 x 0.001 = 0.010 = 0.01<\/p>\n<p>Question 18.<br \/>\ne. Fill in the bubble for the correct answer choice above.<br \/>\nOptions:<br \/>\na. 0.7 mile<br \/>\nb. 0.25 mile<br \/>\nc. 0.1 mile<br \/>\nd. 0.01 mile<\/p>\n<p>Answer:<br \/>\nd. 0.01 mile<\/p>\n<p>Question 19.<br \/>\nIn a science experiment, Tania uses 0.8 ounce of water to create a reaction. She wants the next reaction to be 0.1 times the size of the previous reaction. How much water should she use?<br \/>\nOptions:<br \/>\na. 0.08 ounce<br \/>\nb. 0.09 ounce<br \/>\nc. 0.8 ounce<br \/>\nd. 0.9 ounce<\/p>\n<p>Answer:<br \/>\na. 0.08 ounce<\/p>\n<p>Explanation:<br \/>\nIn a science experiment, Tania uses 0.8 ounce of water to create a reaction. She wants the next reaction to be 0.1 times the size of the previous reaction.<br \/>\n0.8 x 0.1 = 0.08 ounce<\/p>\n<p>Question 20.<br \/>\nMichael multiplies 0.2 by a number. He records the product as 0.008. What number did Michael use?<br \/>\nOptions:<br \/>\na. 0.016<br \/>\nb. 0.04<br \/>\nc. 0.28<br \/>\nd. 0.4<\/p>\n<p>Answer:<br \/>\nb. 0.04<\/p>\n<p>Explanation:<br \/>\nMichael multiplies 0.2 by a number. He records the product as 0.008.<br \/>\n0.2 x n = 0.008<br \/>\nn = 0.008\/0.2<br \/>\nn = 0.04<br \/>\nMichael use 0.04<\/p>\n<h3><a id=\"Review\/Test_-_Page_No._195\"><\/a>Chapter Review\/Test &#8211; Page No. 195<\/h3>\n<p><strong>Check Concepts<\/strong><\/p>\n<p>Question 1.<br \/>\nExplain how estimation helps you to place the decimal point when multiplying 3.9 \u00d7 5.3.<br \/>\nType below:<br \/>\n_________<\/p>\n<p>Answer:<br \/>\n3.9 \u00d7 5.3<br \/>\n39 x 53 = 2067<br \/>\n0.1 x 0.1 = 0.01<br \/>\n2067 x 0.01 = 20.67<\/p>\n<p><strong>Complete the pattern.<\/strong><\/p>\n<p>Question 2.<br \/>\n1 \u00d7 7.45 = _______<br \/>\n10 \u00d7 7.45 = _______<br \/>\n100 \u00d7 7.45 = _______<br \/>\n1,000 \u00d7 7.45 = _______<\/p>\n<p>Answer:<br \/>\n1 \u00d7 7.45 = 7.45<br \/>\n10 \u00d7 7.45 = 74.5<br \/>\n100 \u00d7 7.45 = 745<br \/>\n1,000 \u00d7 7.45 = 7,450<\/p>\n<p>Question 3.<br \/>\n10<sup>0<\/sup> \u00d7 376.2 = _______<br \/>\n10<sup>1<\/sup> \u00d7 376.2 = _______<br \/>\n10<sup>2<\/sup> \u00d7 376.2 = _______<br \/>\n10<sup>3<\/sup> \u00d7 376.2 = _______<\/p>\n<p>Answer:<br \/>\n10<sup>0<\/sup> \u00d7 376.2 = 376.2<br \/>\n10<sup>1<\/sup> \u00d7 376.2 = 3,762<br \/>\n10<sup>2<\/sup> \u00d7 376.2 = 37,620<br \/>\n10<sup>3<\/sup> \u00d7 376.2 = 376,200<\/p>\n<p>Explanation:<br \/>\n10<sup>0<\/sup> \u00d7 376.2 = 1 x 376.2 = 376.2<br \/>\n10<sup>1<\/sup> \u00d7 376.2 = 10 x 376.2 = 3,762<br \/>\n10<sup>2<\/sup> \u00d7 376.2 = 100 x 376.2 =\u00a0 37,620<br \/>\n10<sup>3<\/sup> \u00d7 376.2 = 1000 x 376.2 = 376,200<\/p>\n<p>Question 4.<br \/>\n1 \u00d7 191 = _______<br \/>\n0.1 \u00d7 191 = _______<br \/>\n0.01 \u00d7 191 = _______<\/p>\n<p>Answer:<br \/>\n1 \u00d7 191 = 191<br \/>\n0.1 \u00d7 191 = 19.1<br \/>\n0.01 \u00d7 191 = 1.91_<\/p>\n<p><strong>Find the product.<\/strong><\/p>\n<p>Question 5.<br \/>\n5 \u00d7 0.89 = _____<\/p>\n<p>Answer:<br \/>\n4.45<\/p>\n<p>Explanation:<br \/>\n5 \u00d7 0.89<br \/>\n5 x 9 = 45 hundredths; 4 tenths and 5 hundredths<br \/>\n5 x 8 = 40 tenths; 40 + 4 tenths = 44 tenths; 4 ones and 4 tenths<br \/>\n5 x 0 = 0; 0 + 4 = 4 ones<br \/>\n4.45<\/p>\n<p>Question 6.<br \/>\n9 \u00d7 2.35 = _____<\/p>\n<p>Answer:<br \/>\n21.15<\/p>\n<p>Explanation:<br \/>\n9 \u00d7 2.35<br \/>\n9 x 5 = 45 hundredths; 4 tenths and 5 hundredths<br \/>\n9 x 3 = 27 tenths; 27 + 4 tenths = 31 tenths; 3 ones and 1 tenth<br \/>\n9 x 2 = 18; 18 + 3 = 21 ones<br \/>\n21.15<\/p>\n<p>Question 7.<br \/>\n23 \u00d7 8.6 = _____<\/p>\n<p>Answer:<br \/>\n197.8<\/p>\n<p>Explanation:<br \/>\n23 x 8.6<br \/>\n23 x 6 = 138 tenths; 13 ones and 8 tenths<br \/>\n23 x 8 = 184 ones; 184 + 13 = 197 ones<br \/>\n197.8<\/p>\n<p>Question 8.<br \/>\n7.3 \u00d7 0.6 = _____<\/p>\n<p>Answer:<br \/>\n4.38<\/p>\n<p>Explanation:<br \/>\n73 x 6 = 438<br \/>\n0.1 x 0.1 = 0.01<br \/>\n438 x 0.01 = 4.38<\/p>\n<p>Question 9.<br \/>\n0.09 \u00d7 0.7 = _____<\/p>\n<p>Answer:<br \/>\n0.063<\/p>\n<p>Explanation:<br \/>\n9 x 7 = 63<br \/>\n0.01 x 0.1 = 0.001<br \/>\n63 x 0.001 = 0.063<\/p>\n<p>Question 10.<br \/>\n0.8 \u00d7 $0.40 = $ _____<\/p>\n<p>Answer:<br \/>\n$0.32<\/p>\n<p>Explanation:<br \/>\n8 x 4 = 32<br \/>\n0.1 x 0.1 = 0.01<br \/>\n32 x 0.01 = 0.32<\/p>\n<p><strong>Draw a diagram to solve.<\/strong><\/p>\n<p>Question 11.<br \/>\nIn January, Dawn earns $9.25 allowance. She earns 3 times as much in February. If during March, she earns $5.75 more than she did in February, how much allowance does Dawn earn in March?<br \/>\n$ _________<\/p>\n<p>Answer:<br \/>\n$33.5<\/p>\n<p>Explanation:<br \/>\nIn January, Dawn earns $9.25 allowance.<br \/>\nFebruary: 3 x $9.25 = $27.75<br \/>\nMarch: $27.75 + $5.75 = $33.5<\/p>\n<h3><a id=\"Review\/Test_\u2013_Page_No._196\"><\/a>Chapter Review\/Test &#8211; Page No. 196<\/h3>\n<p><strong>Fill in the bubble completely to show your answer.<\/strong><\/p>\n<p>Question 12.<br \/>\nJanet hikes a trail at a local forest each day. The trail is 3.6 miles long, and she has hiked 5 days in the past week. How many miles has Janet hiked in the past week?<br \/>\nOptions:<br \/>\nA. 18 miles<br \/>\nB. 15.3 miles<br \/>\nC. 11 miles<br \/>\nD. 8.6 miles<\/p>\n<p>Answer:<br \/>\nA. 18 miles<\/p>\n<p>Explanation:<br \/>\nJanet hikes a trail at a local forest each day. The trail is 3.6 miles long, and she has hiked 5 days in the past week.<br \/>\n3.6 x 5 = 18 miles<\/p>\n<p>Question 13.<br \/>\nTo earn money for his vacation, Grayson works at a local shop on weekends. His job is to cut bricks of fudge into 0.25 pound squares. If he cuts 36 equal-sized squares on Saturday, how many pounds of fudge has Grayson cut?<br \/>\nOptions:<br \/>\nA. 7.25 pounds<br \/>\nB. 9 pounds<br \/>\nC. 90 pounds<br \/>\nD. 72.5 pounds<\/p>\n<p>Answer:<br \/>\nB. 9 pounds<\/p>\n<p>Explanation:<br \/>\nTo earn money for his vacation, Grayson works at a local shop on weekends. His job is to cut bricks of fudge into 0.25 pound squares. If he cuts 36 equal-sized squares on Saturday,<br \/>\n0.25 x 36 = 9 pounds<\/p>\n<p>Question 14.<br \/>\nJames is making a scale model of his bedroom. The model is 0.6 feet wide. If the actual room is 17.5 times as wide as the model, what is the width of James\u2019s room?<br \/>\nOptions:<br \/>\nA. 18.1 feet<br \/>\nB. 17.11 feet<br \/>\nC. 16.9 feet<br \/>\nD. 10.5 feet<\/p>\n<p>Answer:<br \/>\nD. 10.5 feet<\/p>\n<p>Explanation:<br \/>\nJames is making a scale model of his bedroom. The model is 0.6 feet wide. If the actual room is 17.5 times as wide as the model,<br \/>\n0.6 x 17.5 = 10.5 feet<\/p>\n<p>Question 15.<br \/>\nThe cost of admission to the matinee showing at a movie theater is $6.75. If 7 friends want to see the matinee showing of their favorite movie, how much will it cost?<br \/>\nOptions:<br \/>\nA. $11.25<br \/>\nB. $14.75<br \/>\nC. $42.75<br \/>\nD. $47.25<\/p>\n<p>Answer:<br \/>\nD. $47.25<\/p>\n<p>Explanation:<br \/>\nThe cost of admission to the matinee showing at a movie theater is $6.75. If 7 friends want to see the matinee showing of their favorite movie,<br \/>\n7 x $6.75 = $47.25<\/p>\n<h3><a id=\"Review\/Test_\u2013_Page_No._197\"><\/a>Chapter Review\/Test &#8211; Page No. 197<\/h3>\n<p><strong>Fill in the bubble completely to show your answer.<\/strong><\/p>\n<p>Question 16.<br \/>\nOn Friday, Gail talks for 38.4 minutes on her cell phone. On Saturday, she uses 5.5 times as many minutes as she did on Friday. How long does Gail talk on her cell phone on Saturday?<br \/>\nOptions:<br \/>\nA. 2.112 minutes<br \/>\nB. 21.12 minutes<br \/>\nC. 211.2 minutes<br \/>\nD. 2,112 minutes<\/p>\n<p>Answer:<br \/>\nC. 211.2 minutes<\/p>\n<p>Explanation:<br \/>\nOn Friday, Gail talks for 38.4 minutes on her cell phone. On Saturday, she uses 5.5 times as many minutes as she did on Friday.<br \/>\n38.4 x 5.5 = 211.2 minutes<\/p>\n<p>Question 17.<br \/>\nHarry walks to a produce market to buy bananas. If a pound of bananas costs $0.49, how much will Harry pay for 3 pounds of bananas?<br \/>\nOptions:<br \/>\nA. $1.47<br \/>\nB. $3.49<br \/>\nC. $5.49<br \/>\nD. $10.47<\/p>\n<p>Answer:<br \/>\nA. $1.47<\/p>\n<p>Explanation:<br \/>\nHarry walks to a produce market to buy bananas. If a pound of bananas costs $0.49,<br \/>\nFor 3 pound, 3 x $0.49 = $1.47<\/p>\n<p>Question 18.<br \/>\nAt Anne\u2019s Fabric Emporium, a yard of chiffon fabric costs $7.85. Lee plans to purchase 0.8 yard for a craft project. How much money will Lee spend on chiffon fabric?<br \/>\nOptions:<br \/>\nA. $0.63<br \/>\nB. $6.28<br \/>\nC. $7.05<br \/>\nD. $8.65<\/p>\n<p>Answer:<br \/>\nB. $6.28<\/p>\n<p>Explanation:<br \/>\nAt Anne\u2019s Fabric Emporium, a yard of chiffon fabric costs $7.85. Lee plans to purchase 0.8 yard for a craft project.<br \/>\n0.8 x $7.85 = $6.28<\/p>\n<p>Question 19.<br \/>\nMitchell has $18.79 in his savings account. Jeremy has 3 times as much as Mitchell. Maritza has $4.57 more than Jeremy. How much money does Maritza have in her savings account?<br \/>\nOptions:<br \/>\nA. $13.71<br \/>\nB. $32.50<br \/>\nC. $56.37<br \/>\nD. $60.94<\/p>\n<p>Answer:<br \/>\nD. $60.94<\/p>\n<p>Explanation:<br \/>\nMitchell: $18.79<br \/>\nJeremy: 3 x $18.79 = $56.37<br \/>\nMaritza: $56.37 + $4.57 = $60.94<\/p>\n<h3><a id=\"Review\/Test_\u2013_Page_No._198\"><\/a>Chapter Review\/Test &#8211; Page No. 198<\/h3>\n<p><strong>Constructed Response<\/strong><\/p>\n<p>Question 20.<br \/>\nA river otter eats about 0.15 times its weight in food each day. At the Baytown Zoo, the male river otter weighs 5 pounds. About how much food will the otter at the zoo consume each day? Explain how you found your answer.<br \/>\n_____ pounds<\/p>\n<p>Answer:<br \/>\n0.75 pounds<\/p>\n<p>Explanation:<br \/>\nA river otter eats about 0.15 times its weight in food each day. At the Baytown Zoo, the male river otter weighs 5 pounds.<br \/>\n0.15 x 5 = 0.75 pounds<\/p>\n<p><strong>Performance Task<\/strong><\/p>\n<p>Question 21.<br \/>\nThe cost of admission to the Baytown Zoo is shown below. Use the table to answer the questions.<br \/>\n<img loading=\"lazy\" src=\"https:\/\/ccssmathanswers.com\/wp-content\/uploads\/2020\/07\/Go-Math-Grade-5-Answer-Key-Chapter-4-Multiply-Decimals-img-21.jpg\" alt=\"Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals Chapter Review\/Test img 21\" width=\"353\" height=\"200\" \/><br \/>\nA. A family of 2 adults and 1 child plans to spend the day at the Baytown Zoo. How much does admission for the family cost? Explain how you found your answer.<br \/>\n$ _____<\/p>\n<p>Answer:<br \/>\n$39.75<\/p>\n<p>Explanation:<br \/>\nSenior Citizen = $10.50<br \/>\nAdult = $15.75<br \/>\nChild = $8.25<br \/>\nA family of 2 adults and 1 child plans to spend the day at the Baytown Zoo.<br \/>\n(2 x $15.75) + $8.25<br \/>\n$31.5 + $8.25 = $39.75<\/p>\n<p>Question 21.<br \/>\nB. Describe another way you could solve the problem.<br \/>\nType below:<br \/>\n________<\/p>\n<p>Answer:<br \/>\n(2 x $15.75) + $8.25<br \/>\n$15.75 + $15.75 + $8.25 = $39.75<\/p>\n<p>Question 21.<br \/>\nC. What if 2 more tickets for admission are purchased? If the two additional tickets cost $16.50, determine what type of tickets the family purchases.<br \/>\nExplain how you can determine the answer without calculating.<br \/>\nOptions:<br \/>\na. Senior tickets<br \/>\nb. Adult tickets<br \/>\nc. Child tickets<\/p>\n<p>Answer:<br \/>\nc. Child tickets<\/p>\n<p>Explanation:<br \/>\nif 2 more tickets for admission are purchased? If the two additional tickets cost $16.50,<br \/>\n$39.75 + $16.50 = $56.25<br \/>\nTwo additional children\u2019s tickets are purchased. Since senior citizen tickets cost about $10 each, then 2 tickets would cost about $20, which is too much. Adult tickets cost about $16 each, so 2 adult tickets would cost about $32, which is too much. Children\u2019s tickets cost about $8, and 2 tickets would be about $16 which is correct.<\/p>\n<h3>Conclusion<\/h3>\n<p>Download Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals for free of cost and take your preparation to the next level. Every Step included while solving the Problems of Multiply Decimals makes it easy for you to grasp the concepts. Keep in touch with our site to avail the latest updates on Class Specific Go Math Answer Keys in no time.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Go Math Grade 5 Answer Key Chapter 4 Multiply Decimals comes in handy while preparing for the exams. Go Math Grade 5 Chapter 4 Solution Key is given by the subject experts. We listed Go Math Grade 5 Answer Key covering the questions from Practice Test, Chapter Test, Cumulative Practice. 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