go math lesson 7.5 5th grade homework answers

• 888-309-8227
• 732-384-0146

New User Registration

Forgot Password

Go Math! 5 Common Core, Grade: 5 Publisher: Houghton Mifflin Harcourt

Go math 5 common core, title : go math 5 common core, publisher : houghton mifflin harcourt, isbn : 547587813, isbn-13 : 9780547587813, use the table below to find videos, mobile apps, worksheets and lessons that supplement go math 5 common core., textbook resources.

• Call us toll-free
• FAQs – Frequently Asked Questions
• Contact Lumos Learning – Proven Study Programs by Expert Teachers

Follow us: Lumos Learning -->

• 2024 © Lumos Learning
• Privacy Policy - Terms of Service - Disclaimers

PARCC® is a registered trademark of PARCC, Inc. Lumos Learning, is not owned by or affiliated in any fashion with PARCC, Inc... Read More

PARCC® is a registered trademark of PARCC, Inc. Lumos Learning, is not owned by or affiliated in any fashion with PARCC, Inc., the Partnership for the Assessment of Readiness for College and Careers, nor any state of the Union. Neither PARCC, Inc., nor The Partnership for the Assessment of Readiness for College and Careers, nor any member state has endorsed this product. No portion of any fees or charges paid for any products or services Lumos Learning offers will be paid or inure to the benefit of PARCC, Inc., or any state of the Union

SBAC is a copyright of The Regents of the University of California – Smarter Balanced Assessment Consortium, which is not aff... Read More

SBAC is a copyright of The Regents of the University of California – Smarter Balanced Assessment Consortium, which is not affiliated to Lumos Learning. The Regents of the University of California – Smarter Balanced Assessment Consortium, was not involved in the production of, and does not endorse these products or this site.

ACT® Aspire™ is a registered trademark of ACT Aspire LLC., which is not affiliated to Lumos Learning. ACT Aspire LLC, was not... Read More

ACT® Aspire™ is a registered trademark of ACT Aspire LLC., which is not affiliated to Lumos Learning. ACT Aspire LLC,was not involved in the production of, and does not endorse these products or this site.

Florida Department of Education is not affiliated to Lumos Learning. Florida department of education, was not involved in the... Read More

Florida Department of Education is not affiliated to Lumos Learning. Florida department of education, was not involved in the production of, and does not endorse these products or this site.

Indiana Department of Education is not affiliated to Lumos Learning. Indiana department of education, was not involved in the... Read More

Indiana Department of Education is not affiliated to Lumos Learning. Indiana department of education, was not involved in the production of, and does not endorse these products or this site.

Mississippi Department of Education is not affiliated to Lumos Learning. Mississippi department of education, was not involved... Read More

Mississippi Department of Education is not affiliated to Lumos Learning. Mississippi department of education, was not involved in the production of, and does not endorse these products or this site.

Ohio Department of Education is not affiliated to Lumos Learning. Ohio department of education, was not involved in the prod... Read More

Ohio Department of Education is not affiliated to Lumos Learning. Ohio department of education, was not involved in the production of, and does not endorse these products or this site.

Tennessee Department of Education is not affiliated to Lumos Learning. Tennessee department of education, was not involved... Read More

Tennessee Department of Education is not affiliated to Lumos Learning. Tennessee department of education, was not involved in the production of, and does not endorse these products or this site.

Georgia Department of Education is not affiliated to Lumos Learning. Georgia department of education, was not involved... Read More

Georgia Department of Education is not affiliated to Lumos Learning. Georgia department of education, was not involved in the production of, and does not endorse these products or this site.

Missouri Department of Education is not affiliated to Lumos Learning. Missouri department of education, was not involved... Read More

Missouri Department of Education is not affiliated to Lumos Learning. Missouri department of education, was not involved in the production of, and does not endorse these products or this site.

Louisiana Department of Education is not affiliated to Lumos Learning. Louisiana department of education, was not involved... Read More

Louisiana Department of Education is not affiliated to Lumos Learning. Louisiana department of education, was not involved in the production of, and does not endorse these products or this site.

• Texas Go Math
• Big Ideas Math
• Engageny Math
• McGraw Hill My Math
• enVision Math
• 180 Days of Math
• Math in Focus Answer Key
• Math Expressions Answer Key
• Privacy Policy

Solutions Key of Go Math Grade 5 Textbook | Download HMH Go Math 5th Grade Answer Key Pdf

Go Math Answer Key for Grade 5: Parents who are concentrating on their kid’s studies must try this Go math 5th Grade Answer Key. It is the most important preparation material for finishing the homework and efficient preparation. You have to practice with this Go math answer key for grade 5 and clear all your queries and score high marks in the exam.

Houghton Mifflin Harcourt Go Math 5th Grade Solution key provided detailed solutions and step-wise answers for all chapters in pdf format. Go Math Answer Key Grade 5 is prepared for students by considering the standard tests. Download Chapterwise Solutions for Go Math Grade 5 using the quick links provided here & learn the topics within no time.

All Chapters Go Math Grade 5 Answer Key Pdf Free Download

Compiled list of Go Math 5th Standard chapterwise Answer Key pdf improves your skills and performance in the standard tests. A clear-cut explanation of concepts makes students to grasp the topics clearly and score well in the exams. It also develops your interest in mathematical concepts and helps students to stand out from the crowd. However, Go Math Primary School Grade 5 Answer Key pdf can be helpful during your assessments and you can attempt the test with utmost confidence.

Grade 5 HMH Go Math – NEW

• Chapter 1: Place Value, Multiplication, and Expressions
• Chapter 2: Divide Whole Numbers
• Chapter 3: Add and Subtract Decimals
• Chapter 4: Multiply Decimals
• Chapter 5: Divide Decimals
• Chapter 6: Add and Subtract Fractions with Unlike Denominators
• Chapter 7: Multiply Fractions
• Chapter 8: Divide Fractions
• Chapter 9: Algebra: Patterns and Graphing
• Chapter 10: Convert Units of Measure
• Chapter 11: Geometry and Volume

Math Expressions Grade 5 Homework and Remembering Answer Key

Grade 5 Math Common Core Tests

• Test 1 Session 1 (page 2)
• Test 2 Session 1 (page 3)
• Test 3 Session 1 (page 4)
• Test 3 Session 2 (page 5)
• Test 4 Session 1 (page 6)
• Test 4 Session 2 (page 7)

Advantages of Solving 5th Grade Chapterwise Go Maths Answer Key Pdf

There are many benefits of solving the HMH Go Math 5th Standard Solutions Key. Have a look at the compiled list of advantages and learn how important is Go Math Answer Key for Grade 5.

• Increase your level of knowledge by preparing from the Go Math Grade 5 Answer Key PDF.
• Existed solutions of all chapter’s mathematical concepts are adhering to the Go Math Textbooks & Syllabus guidelines.
• You can easily solve exercise questions by using the Grade 5 Math Practice 101 Answer Key.
• Our extreme subject experts prepared this accurate and updated HMH Go Math 5th std Answer Keys for better preparation.

FAQs on Go Math Answer Key for Grade 5

1. Which web portal provides Go Math 5th Grade Answer Key for free?

ccssmathanswers.com is a trusted and genuine web portal that provides Go Math Grade 5 Solution Key for free of charge. Ace up your preparation utilizing the study resource available and practice with ease.

2. From where can I avail the Chapterwise Primary School Go Math Answer Key for Grade 5?

You can avail the Chapterwise 5th Grade HMH Go Math Solutions Key from this site or on our page.

3. How can I download pdf formatted 5th Grade HMH Go Math Solutions Key chapterwise?

Just with one click on the quick links available for all the Chapters of Go Math Grade 5 Answer Key, you can download and prepare the relevant topics with ease.

Leave a Comment Cancel Reply

You must be logged in to post a comment.

• Texas Go Math
• Big Ideas Math
• enVision Math
• EngageNY Math
• McGraw Hill My Math
• 180 Days of Math
• Math in Focus Answer Key
• Math Expressions Answer Key
• Privacy Policy

Texas Go Math Grade 5 Lesson 3.7 Answer Key Multiply Decimals

Refer to our Texas Go Math Grade 5 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 5 Lesson 3.7 Answer Key Multiply Decimals.

Unlock the Problem

A male leopard seal is measured and has a length of 2.8 meters. A male elephant seal is about 1.5 times as long. What length is the male elephant seal?

Multiply. 1.5 × 2.8

One Way Use place value. STEP 1: Multiply as with whole numbers.

So, the length of a male elephant seal is about ___4.20___ meters. Answer: The length of a male elephant seal is about  4.20 meters,

So, the length of a male elephant seal is about 4.20 meters.

Explanation: A male leopard seal is measured and has a length of 2.8 meters, A male elephant seal is about 1.5 times as long. The length of the male elephant seal is Step 1: Multiplying as with whole numbers, Step 2: Placing the decimal point, Thinking tenths are being multiplied by tenths. Using the pattern 0.1 × 0.1, Placing the decimal point so the value of the decimal is 0.01.

Another Way Use estimation

You can use an estimate to place the decimal point in a product.

STEP 2: Multiplying as with whole numbers.

Explanation: Multiplying 7.8 × 3.12 STEP 1: Estimate by rounding each factor to the nearest whole number,

STEP 2: Multiplying as with whole numbers,

STEP 3: Using the estimate to place the decimal point 7.8 × 3.12 = 24.336, Thinking the product should be close to my estimate is 24.336 ≈ 24.

Share and Show

Place the decimal point in the product.

Explanation: Multiplying 3.62 × 1.4, STEP 1: Estimate by rounding each factor to the nearest whole number, STEP 2: Multiplying as with whole numbers, 362 X14 1448 3620 5068

STEP 3: Using the estimate to place to the decimal point of 3.62 X 1.4 is 5.068 I think the product should be close to the estimate is 4 X 1 ≈ 4.

Explanation: Multiplying 6.8 × 1.2, STEP 1: Estimate by rounding each factor to the nearest whole number, STEP 2: Multiplying as with whole numbers, 68 X12 136 680 1 816

STEP 3: Using the estimate to place to the decimal point as 6.8 X 1.2= 8.16, Thinking that the product should be close to the estimate as 7 X 1 ≈ 7.

Find the product.

Explanation: Multiplying 0.9 × 0.8, STEP 1: Estimate by rounding each factor to the nearest whole number, STEP 2: Multiplying as with whole numbers, 09 X08 72

STEP 3: Using the estimate to place to the decimal point as 0.9 X 0.8 = 0.72, Thinking that the product should be close to the estimate as 1 X 1 ≈ 1.

Explanation: Multiplying  84.5 × 5.5, STEP 1: Estimate by rounding each factor to the nearest whole number, STEP 2: Multiplying as with whole numbers, 845 X 55 04225 42250 46475

STEP 3: Using the estimate to place to the decimal point as 84.5 X 5.5 =464.75 Thinking that the product should be close to the estimate of 85 X 5 ≈ 425.

Explanation: Multiplying  2.39 × 2.7, STEP 1: Estimate by rounding each factor to the nearest whole number, STEP 2: Multiplying as with whole numbers, 239 X 27 1673 4780 6453

STEP 3: Using the estimate to place to the decimal point as 2.39 X 2.7 = 6.453 Thinking that the product should be close to the estimate as 239 X 27 ≈ 6.453.

Math Talk Mathematical Processes

Explain how you might know the place value of the product for Exercise 5 before you solve. Answer: Place value of the product for Exercise 5 before solving is 3,

Explanation: When multiplying  2.39 × 2.7, we get place value from 2.39 as 2, because 39 is there after point(.) position, therefore place value is 2 in 2.39, now in 2.7, 7 is there after point(.) position, therefore place value is 1 in 2.7, Totally there are 2 + 1 = 3 place values in 6.453 from 2.39 × 2.7.

Problem Solving

Practice: Copy and Solve Find the product.

Question 6. 3.4 × 5.2 Answer: 3.4 X 5.2 = 17.68, Place value of the product 3.4 X 5.2 is 2,

Explanation: When multiplying  3.4 × 5.2, we get place value from 3.4 as 1 because 4 is there after point(.) position, therefore place value is 1 in 3.4, now in 5.2 after point(.) position 2 is there, therefore place value is 1 in 5.2, Totally there are 1 + 1 = 2 place values in 17.68 of 3.4 × 5.2.

Question 7. 0.9 × 2.46 Answer: 0.9 X 2.46 = 2.214, Place value of the product 0.9 X 2.46 is 2,

Explanation: When multiplying  0.9 × 2.46, we get place value from 0.9 as 1 because 9 is thereafter point(.) position, therefore place value is 1 in 0.9, now in 2.46 after point(.) position 2 is there, therefore place value is 2 in 2.46, Totally there are 1 + 2 = 3 place values in 2.214.

Go Math Grade 5 Lesson 3.7 Answer Key Question 8. 9.1 × 5.7 Answer: 9.1 X 5.7 = 51.87, Place value of the product 9.1 X 5.7 is 2,

Explanation: When multiplying  9.1 × 5.7, we get place value from 9.1 as 1 because 9 is there after point(.) position, therefore place value is 1 in 0.9, now in 5.7 after point(.) position 7 is there, therefore place value is 1 in 5.7, Totally there are 1 + 1 = 2 place values in 51.87.

Question 9. 4.8 × 6.01 Answer: 4.8 X 6.01 = 51.870, Place value of the product 4.8 X 6.01 is 3,

Explanation: When multiplying  4.8 × 6.01, we get place value from 4.8 as 1 because 8 is there after point(.) position, therefore place value is 1 in 4.8, now in 6.01 after point(.) position 01 is there, therefore place value is 2 in 6.01, Totally there are 1 + 2 = 3 place values in 51.87.

Question 10. 7.6 × 18.7 Answer: 7.6 X 18.7 = 51.87, Place value of the product 7.6 X 18.7 is 2,

Explanation: When multiplying  7.6 × 18.7, we get place value from 7.6 as 1 because 6 is there after point(.) position, therefore place value is 1 in 7.6, now in 18.7 after point(.) position 01 is there, therefore place value is 1 in 18.7, Totally there are 1 + 1 = 2 place values in 51.87.

Question 11. 1.5 × 9.34 Answer: 1.5 X 9.34 = 14.010, Place value of the product 1.5 X 9.34 is 3,

Explanation: When multiplying 1.5 × 9.34, we get place value from 1.5 as 1 because 5 is there after point(.) position, therefore place value is 1 in 1.5, now in 9.34 after point(.) position 34 is there, therefore place value is 2 in 9.34, Totally there are 1 + 2 = 3 place values in 14.010.

Question 12. 0.77 × 14.9 Answer: 1.5 X 9.34 = 14.010, Place value of the product 1.5 X 9.34 is 3,

Explanation: When multiplying 1.5 × 9.34, we get place value from 1.5 as 1 because 5 is there after point(.) position, therefore place value is 1 in 1.5,

now in 9.34 after point(.) position 34 is there, therefore place value is 2 in 9.34, Totally there are 1 + 2 = 3 place values in 14.010.

Lesson 3.7 Multiply Decimals Answer Key Go Math 5th Grade Question 13. 3.3 × 58.14 Answer: 3.3 X 58.14 = 191.862, Place value of the product 3.3 X 58.14 is 3,

Explanation: When multiplying 3.3 × 58.14, we get place value from 3.3 as 1 because 3 is thereafter point(.) position, therefore place value is 1 in 3.3, now in 58.14 after point(.) position 2 is there, therefore place value is 2 in 58.14, Totally there are 1 + 2 = 3 place values in 191.862.

Question 14. H.O.T. Write Math In the multiplication problem 5.5 × 4.6, is the answer 25.3 or 25.30? Explain your reasoning. Answer: 5.5 X 4.6 the answer is 25.3 and 25.30,

Explanation: Given multiplication problem 5.5 X 4.6, we get place value from 5.5 as 1 because 5 is there after point(.) position, therefore place value is 1 in 5.5,

now in 4.6 after point(.) position 6 is there, therefore place value is 1 in 4.6, Totally there are 1 + 1 = 2 place values in 5.5 X 4.6, therefore the answer is 25.30 and also 25.3 as zero has no value.

Question 15. Analyze Charlie has an adult Netherlands dwarf rabbit that weighs 1.2 kilograms. Cliff’s adult Angora rabbit weighs 2.9 times as much as Charlie’s rabbit. How much does Cliff’s rabbit weigh? Answer: Cliff’s rabbit weigh 2.9 X 1.2 = 3.48 kilograms,

Explanation: Given Charlie has an adult Netherlands dwarf rabbit that weighs 1.2 kilograms. Cliff’s adult Angora rabbit weighs 2.9 times as much as Charlie’s rabbit so does Cliff’s rabbit weigh 2.9 X 1.2 = 3.48 kilograms.

Question 16. Multi-Step John 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’s. How many more square feet will Taylor’s enclosure have than John’s enclosure? Answer: 67.584 square feet will Taylor’s enclose to have more than John’s enclosures,

Explanation: Given John 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’s. So more square feet will Taylor’s enclosure have than John’s enclosure is 30.72 X 2.2 = 67.584.

Explanation: Given a 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. So the detailed model is 1.3 x 1.5 = 1.95 meters tall, The building will be 2.5 times as tall as the height of the detailed model. So the height of the new building was 1.95 ÷ 2.5 = 0.78 meters.

Daily Assessment Task

Fill in the bubble completely to show your answer.

Go Math Grade 5 Answer Key Decimal Multiplication Lesson 3.7 Question 18. Arnold is solving this multiplication problem: 8.12 × 4.7. Which of these estimates can Arnold use to help him determine where the decimal point belongs in the product? (A) 80 × 40 = 3,200 (B) 8 × 5 = 40 (C) 800 × 4 = 3,200 (D) 800 × 5 = 4,000 Answer: (D) 800 × 5 = 4,000,

Explanation: Arnold is solving this multiplication problem: 8.12 × 4.7. So the estimates can Arnold use to help him determine where the decimal point belongs in the product is as 8.12 has 2 decimal places value 12 so the nearest estimate of 812 is 800, 4.7 has 1 decimal place value 7 so the nearest estimate of 4.7 is 5, therefore the total nearest estimate is 800 X 5 = 4,000 which matches with (D).

Question 19. Which multiplication problem will not give the same product as 5.5 × 4.44? (A) 5.5 × 4.44 (B) 0.55 × 44.4 (C) 55 × 0.444 (D) 0.55 × 0.444 Answer: (D) 0.55 × 0.444,

Explanation: Multiplication problem will not give the same product as 5.5 × 4.44 is 5.5 has 1 decimal place value 5 and 4.44 has 2 decimal places value 44, so the total decimal place values are 3, Let’s check with (A) 5.5 X 4.44 which has total 3 place values, Now with (B) 0.55 × 44.4 which has total 3 place values, Now with (C) 55 × 0.444 which has total 3 place values, Now with (D) 0.55 × 0.444 which has total 4 place values, therefore, Answer is (D) will not give the same product as 5.5 × 4.44.

Question 20. Multi-Step Gina bought 2.5 pounds of peaches that cost $1.38 per pound at the grocery store. Amy went to the local farmer’s market and purchased 3.5 pounds of peaches at $0.98 per pound. Who spent more money, and how much more? (A) Gina, $0.20 (B) Gina, $0.02 (C) Amy, $0.20 (D) Amy, $0.02 Answer: (B) Gina, $0.02,

Explanation: Given Gina bought 2.5 pounds of peaches that cost $1.38 per pound at the grocery store, So money spent is 2.5 X $1.38 = $3.45, Amy went to the local farmer’s market and purchased 3.5 pounds of peaches at $0.98 per pound, So money spent is 3.5 X $0.98 = $3.43, On comparing Gina and Amy as $3.45 > $3.43 so (B) is true.

Texas Test Prep

Go Math Lesson 3.7 5th Grade Answer Key Question 21. A vine in Mr. Jackson’s garden was 3.6 feet long. When it is measured again, it is 2.1 times as long. How long is the vine? (A) 7.5 feet (B) 6.6 feet (C) 5.7 feet (D) 7.56 feet Answer: (D) 7.56 feet,

Explanation: Given a vine in Mr. Jackson’s garden was 3.6 feet long. When it is measured again, it is 2.1 times as long. So the length of the vine is 3.6 X 2.1 = 7.56 feet, which matches with 7.56.

Texas Go Math Grade 5 Lesson 3.7 Homework and Practice Answer Key

Question 1. 0.6 × 0.8 Answer: 0.6 X 0.8 = 0.48,

Explanation: When multiplying  0.6 × 0.8, we get place value from 0.6 as 1 because 6 is there after point(.) position, therefore place value is 1 in 0.6, now in 0.8 after point(.) position 8 is there, therefore place value is 1 in 0.8, Totally there are 1 + 1 = 2 place values in 0.48.

Go Math Answer Key Grade 5 Practice and Homework Lesson 3.7 Question 2. 18.2 × 2.2 Answer: 18.2 X 2.2 = 40.04,

Explanation: When multiplying  18.2 × 2.2, we get the place value from 18.2 as 1 because 2 is there after point(.) position, therefore place value is 1 in 18.2, now in 2.2 after point(.) position 2 is there, therefore place value is 1 in 2.2, Totally there are 1 + 1 = 2 place values in 40.48.

Question 3. 3.84 × 4.5 Answer: 3.84 X 4.5 = 17.280,

Explanation: When multiplying  3.84 × 4.5, we get place value from 3.84 as 2 because 84 is there after point(.) position, therefore place value is 2 in , now in 4.5 after point(.) position 5 is there, therefore place value is 1 in 4.5, Totally there are 2 + 1 = 3 place values in 17.280.

Question 4. 1.9 × 4.3 Answer: 1.9 X 4.3 = 8.17,

Explanation: When multiplying  1.9 × 4.3, we get place value from 1.9 as 1 because 9 is there after point(.) position, therefore place value is 1 in 1.9, now in 4.3 after point(.) position 3 is there, therefore place value is 1 in 4.3, Totally there are 1 + 1 = 2 place values in 8.17.

Question 5. 0.7 × 2.51 Answer: 0.7 X 2.51 = 1.757,

Explanation: When multiplying  0.7 × 2.51, we get place value from 0.7 as 1 because 7  is there after point(.) position, therefore place value is 1 in 0.7, now in 2.51 after point(.) position 51 is there, therefore place value is 1 in 2.51, Totally there are 1 + 2 = 3 place values in 1.757.

Question 6. 6.2 × 3.2 Answer: 6.2 X 3.2 = 19.84,

Explanation: When multiplying  6.2 × 3.2, we get place value from 6.2 as 1 because  2 is there after point(.) position, therefore place value is 1 in 6.2, now in 3.2 after point(.) position 2 is there, therefore place value is 1 in 3.2, Totally there are 1 + 1 = 2 place values in 19.84.

Question 7. 6.6 × 4.01 Answer: 6.6 X 4.01 = 26.466,

Explanation: When multiplying  6.6 X 4.01, we get place value from 6.6 as 1 because 6 is there after point(.) position, therefore place value is 1 in 6.6, now in 4.01 after point(.) position 01 is there, therefore place value is 2 in 4.01, Totally there are 1 + 2 = 3 place values in 26.466.

Question 8. 5.7 × 13.4 Answer: 5.7 X 13.4 = 76.38,

Explanation: When multiplying  5.7 × 13.4, we get place value from 5.7 as 1 because  7 is there after point(.) position, therefore place value is 1 in 5.7, now in 13.4 after point(.) position 4 is there, therefore place value is 1 in 13.4, Totally there are 1 + 1 = 2 place values in 76.38.

Question 9. 1.3 × 5.54 Answer: 1.3 X 5.54 = 7.202,

Explanation: When multiplying  1.3 X 5.54, we get place value from 1.3 as 1 because 3 is thereafter point(.) position, therefore place value is 1 in 1.3, now in 5.54 after point(.) position 54 is there, therefore place value is 2 in 5.54, Totally there are 1 + 2 = 3 place values in 7.202.

Practice and Homework Lesson 3.7 Answer Key 5th Grade Question 10. 2.4 × 8.35 Answer: 2.4 X 8.35 = 20.040,

Explanation: When multiplying  2.4 X 8.35, we get the place value from 2.4 as 1 because 4 is thereafter point(.) position, therefore place value is 1 in 2.4, now in 8.35 after point(.) position 35 is there, therefore place value is 2 in 8.35, Totally there are 1 + 2 = 3 place values in 20.040.

Question 11. 0.55 × 16.3 Answer: 0.55 X 16.3 = 8.965,

Explanation: When multiplying  0.55 X 16.3, we get place value from 0.55 as 2 because 55 is there after point(.) position, therefore place value is 2 in 0.55, now in 16.3 after point(.) position 3 is there, therefore place value is 1 in 16.3, Totally there are 2 + 1 = 3 place values in 8.965.

Question 12. 4.7 × 38.12 Answer: 4.7 X 38.12 = 179.164,

Explanation: When multiplying  4.7 X 38.12, we get place value from 4.7 as 1 because 7 is there after point(.) position, therefore place value is 1 in 4.7, now in 38.12 after point(.) position 12 is there, therefore place value is 2 in 38.12, Totally there are 1 + 2 = 3 place values in 179.164.

Question 13. 8.9 × 7.6 Answer: 8.9 X 7.6 = 67.64,

Explanation: When multiplying  8.9 × 7.6, we get place value from 8.9 as 1 because 9 is there after point(.) position, therefore place value is 1 in 8.9, now in 7.6 after point(.) position 6 is there, therefore place value is 1 in 7.6, Totally there are 1 + 1 = 2 place values in 67.64.

Question 14. 24.3 × 0.8 Answer: 24.3 X 0.8 = 67.64,

Explanation: When multiplying  24.3 × 0.8, we get place value from 24.3 as 1 because 9 is there after point(.) position, therefore place value is 1 in 8.9, now in 7.6 after point(.) position 6 is there, therefore place value is 1 in 7.6, Totally there are 1 + 1 = 2 place values in 67.64.

Question 15. 7.07 × 12.3 Answer: 7.07 X 12.3 = 86.961,

Explanation: When multiplying 7.07 X 12.3, we get place value from 7.07 as 2 because 07 is there after point(.) position, therefore place value is 2 in 7.07 , now in 12.3 after point(.) position 3 is there, therefore place value is 1 in 12.3, Totally there are 2 + 1 = 3 place values in 86.961.

Question 16. 49.21 × 3.6 Answer: 49.21 X 3.6 = 177.156,

Explanation: When multiplying 49.21 X 3.6, we get place value from 49.21as 2 because 21 is there after point(.) position, therefore place value is 2 in 49.21 , now in 3.3 after point(.) position 3 is there, therefore place value is 1 in 3.3, Totally there are 2 + 1 = 3 place values in 177.156. Problem Solving

Question 17. The width of Mr. Simm’s driveway is 9.2 meters. The length is 3.4 times the width. What is the length of the driveway? Answer: 31.28 meters,

Explanation: Given the width of Mr. Simm’s driveway is 9.2 meters. The length is 3.4 times the width, So the length of the driveway is 9.2 meters X 3.4 = 31.28 meters.

Question 18. A female orangutan at the zoo weighs 79.3 pounds. A male orangutan weighs 2.3 times as much as a female orangutan. How much does the male orangutan weigh? Answer: The male orangutan weigh is 182.39 pounds,

Explanation: A female orangutan at the zoo weighs 79.3 pounds, A male orangutan weighs 2.3 times as much as a female orangutan. The male orangutan weigh 79.3 X 2.3 = 182.39 pounds.

Lesson Check

Question 19. Javier uses estimation to check the product for 7.24 × 3.9. Which of the following is a reasonable estimate for the product? (A) 700 × 40 = 28,000 (B) 700 × 3 = 2,100 (C) 7 × 4 = 28 (D) 70 × 40 = 2,800 Answer: (C) 7 × 4 = 28,

Explanation: Javier uses estimation to check the product for 7.24 × 3.9, The following is a reasonable estimate for the product as 7.24 is approximately equal to 7 and 3.9 is approximately equal to 4 so 7 X 4 =28.

Question 20. Which multiplication problem will give the same product as 4.6 × 5.2? (A) 0.46 × 52 (B) 4.6 × 0.52 (C) 46 × 5.2 (D) 0.46 × 5.2 Answer: (A) 0.46 × 52,

Explanation: Given multiplication problem as 4.6 X 5.2 we get 23.92, so checking with (A) 0.46 × 52 we get product as 23.92, with (B) 4.6 X 0.52 we get product as 2.392, with (C) 46 X 5.2 we get product as 239.2, with (D) 0.46 X 5.2 we get product as 2.392, therefore given problem matches with (A) 0.46 × 52.

Question 21. Mrs. Jones plants two evergreen trees in her yard. The first tree is 6.25 feet tall. The second tree is 0.5 times as tall. How tall is the second tree? (A) 3.255 feet (B) 6.125 feet (C) 3.125 feet (D) 6.750 feet Answer: (C) 3.125 feet,

Explanation: Given Mrs. Jones plants two evergreen trees in her yard. The first tree is 6.25 feet tall and the second tree is 0.5 times as tall as first tree, therefore the second evergreen tree is 3.125 feet tall matches with (C).

Question 22. Mr. Endo buys 13.6 gallons of gasoline. He pays $3.95 per gallon. How much does Mr. Endo spend on gasoline? (A) $53.72 (B) $17.55 (C) $9.65 (D) $39.00 Answer: (A) $53.72,

Explanation: Given Mr.Endo buys 13.6 gallons of gasoline, He pays $3.95 per gallon. So does Mr. Endo spend on gasoline 13.6 X $3.95 = $53.72 matches with (C).

Question 23. Multi-Step Maria makes a quilt with a width of 2.7 meters. The length is 3.2 times the width. The area of a rectangle is the length times the width of the rectangle. What is the area of Maria’s quilt? (A) 8.64 square meters (B) 23.328 square meters (C) 5.90 square meters (D) 27.648 square meters Answer: (A) 8.64 square meters,

Explanation: Given Maria makes a quilt with a width of 2.7 meters. The length is 3.2 times the width. So length of the quilt is 2.7 meters X 3.2 = 8.64 meters, As the area of a rectangle is the length times the width of the rectangle, therefore the area of Maria’s quilt is (A) 8.64 square meters.

Question 24. Multi-Step At the butcher shop, Jason bought 2.4 pounds of ground beef for $5.20 per pound. He bought 3.2 pounds of ground turkey for $2.90 per pound. How much more did Jason spend on beef than on turkey? (A) $3.20 (B) $2.30 (C) $21.76 (D) $9.58 Answer: (A) $3.20,

Explanation: Given at the butcher shop, Jason bought 2.4 pounds of ground beef for $5.20 per pound. Jason bought ground beef for 2.4 X $5.20 = $12.48 , he bought 3.2 pounds of ground turkey for $2.90 per pound, so ground turkey Jason bought for 3.2 X $2.90 = $9.28, therefore more did Jason spend on beef than on turkey is $12.48 – $9.28 = $3.2 matches with (A).

Share this:

Leave a comment cancel reply.

You must be logged in to post a comment.