All the solutions provided inÂ **McGraw Hill My Math Grade 5 Answer Key PDF Chapter 3 Review **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 5 Chapter 3 Review Answer Key

**Review**

**Vocabulary Check**

**Complete the crossword puzzle using the words in the word bank.**

dividend divisor fact family

partial quotients quotient remainder

**Across**

1. the number that divides the dividend

2. a method of dividing where you break the dividend into sections that are easy to divide

3. the result of a division problem

4. a number that is being divided

**Down**

5. the number that is left after one whole number is divided by another

6. a group of related facts using the same numbers

Answer:

Explanation:

Dividend: The dividend is the number that is being divided in the division process.

Divisor: The number by which the dividend is being divided by is called the divisor.

Quotient: The quotient is a result obtained in the division process.

Remainder: Sometimes, we cannot divide things exactly or left over.

A partial quotient refers to a method used in solving large division mathematical problems.

The fact family shows the relationships between the three numbers involved.

A fact family is defined as a group of math facts or equations created using the same set of numbers.

**Concept Check**

**Divide. Use a related multiplication fact**

Question 7.

14 Ă· 7 = ____

Answer:

2

Explanation:

So, when multiplying or dividing, students can use a fact from the inverse operation.

multiplication factÂ 7 x 2 = 14,

the related division fact 14 Ă· 7 = 2.

Question 8.

40 Ă· 5 = ____

Answer:

8

Explanation:

So, when multiplying or dividing, students can use a fact from the inverse operation.

multiplication factÂ 8 x 5 = 40,

the related division fact 40 Ă· 5 = 8.

**Find the quotient using a model.**

Question 9.

48 Ă· 3 = ____

Answer:

16

Explanation:

So, when multiplying or dividing, students can use a fact from the inverse operation.

multiplication factÂ 16 x 3 = 48,Â the related division fact 48 Ă· 3 = 16

**Divide.**

Question 10.

Answer:

Quotient = 31

Remainder = 0

Explanation:

Divided tens. 9 Ă· 3 = 3

Multiply 3 x 3 = 9

Subtract 9 – 9 = 0

Compare 0 < 3.

Divided ones 3 Ă· 3 = 1

Multiply 1 x 3 = 3

Subtract 3 – 3 = 0

Compare 0 < 3.

Question 11.

Answer:

Quotient = 15

Remainder = 3

Explanation:

Divided the tens. 7 Ă· 5 = 1

Multiply 1 x 5 = 5

Subtract 7 – 5 = 2

Compare 2 < 5.

Divided ones 8 Ă· 5 = 1

Multiply 1 x 5 = 5

Subtract 8 – 5 = 3

Compare 3 < 8.

Remainder is 3.

Question 12.

Answer:

Quotient = 23

Remainder = 1

Explanation:

Divided the tens. 4 Ă· 2 = 2

Multiply 2 x 2 = 4

Subtract 4 – 4 = 0

Compare 0 < 4.

Divided ones 7 Ă· 2 = 3

Multiply 3 x 2 = 6

Subtract 6 – 4 = 2

Compare 2 < 4.

Remainder is 1.

**Divide mentally.**

Question 13.

300 Ă· 3 = ___

Answer:

100

Explanation:

Divided the hundreds.

300 Ă· 3 = 100

As, there are zeros in tens and ones.

Question 14.

160 Ă· 8 = ____

Answer:

20

Explanation:

As, hundreds are not sufficient for division,

add 1 hundred to 6 tens.

Then divided ones.

**Estimate. Show how you estimated.**

Question 15.

219 Ă· 2

Answer:

110

Explanation:

219 Ă· 2

Check: 109 x 2 = 218

Add remainder to quotient 218 + 1 = 219

Estimate: 220 Â Ă· 2 = 110

Question 16.

720 Ă· 7

Answer:

104

Explanation:

103

Check: 102 x 7 = 714

Add remainder to quotient 714 + 6 = 720

Estimate: 728 Ă· 7 = 104

Question 17.

182 Ă· 8

Answer:

23

Explanation:

Check: 182 x 8 = 176

Add remainder to quotient 176 + 6 = 182

Estimate: 184 Ă· 8 = 23

23 x 8 = 24

182 is nearer to 184

**Divide.**

Question 18.

Answer:

125

Explanation:

Divided the hundreds. 6 Ă· 5 = 1

Multiply 1 x 5 = 5

Subtract 6 – 5 = 1

Compare 1 < 5.

Divided tens. 12 Ă· 5 = 2

Multiply 2 x 5 = 10

Subtract 12 – 10 = 2

Compare 2 < 5.

Divided ones 25 Ă· 5 = 5

Multiply 5 x 5 = 25

Subtract 25 – 25 = 0

Compare 0 < 5.

Question 19.

Answer:

Quotient = 2160

Remainder = 2

Explanation:

Divided the thousands. 8 Ă· 4 = 2

Multiply 2 x 4 = 8

Subtract 8 – 8 = 0

Compare 0 < 4.

Divided the hundreds. 6 Ă· 4 = 1

Multiply 1 x 4 = 4

Subtract 6 – 4 = 2

Compare 2 < 4.

Divided tens. 4 Ă· 4 = 1

Multiply 1 x 4 = 4

Subtract 4 – 4 = 0

Compare 0 < 4.

Remainder is 2.

Question 20.

Answer:

Quotient = 266

Remainder = 1

Explanation:

Divided the hundreds. 5 Ă· 2 = 2

Multiply 2 x 2 = 4

Subtract 5 – 4 = 1

Compare 1 < 2.

Divided the tens. 3 Ă· 2 = 1

Multiply 1 x 2 = 2

Subtract 3 – 2 = 1

Compare 1 < 2.

Divided the 0nes. 3 Ă· 2 = 1

Multiply 1 x 2 = 2

Subtract 3 – 2 = 1

Compare 1 < 2.

Remainder is 1.

**Problem Solving**

Question 21.

Melanie swam 918 meters in 3 days. If she swam the same distance each day, how far did Melanie swim in one day?

Answer:

306 meters.

Explanation:

Melanie swam 918 meters in 3 days.

One day she can swim, 918 Ă· 3 = 306 meters.

306 x 3 = 918

Question 22.

Luke has 48 books. He puts 7 books in a box. How many boxes can he fill? Explain how you interpreted the remainder.

Answer:

6 boxes.

Quotient = 6

Remainder = 6

Explanation:

Luke has 48 books.

He puts 7 books in a box.

Number of boxes can he fill 48 Ă· 7 = 6

Interpreted the remainder as 1.

7 x 6 = 42

42 + 6 = 48

Question 23.

In 2 hours Cara read 48 pages. If she read the same number of pages each hour, how many pages did Cara read in one hour?

Answer:

24 pages.

Explanation:

In 2 hours Cara read 48 pages.

Number of pages Cara read in one hour,

48 Ă· 2 = 24

In 2 hours Cara read 48 pages.

In 1 hours Cara read 24 pages.

Question 24.

Three plane tickets to New York cost $2,472. If each plane ticket costs the same amount, about how much does one ticket cost?

Answer:

$824

Explanation:

Three plane tickets to New York cost $2,472.

Cost of one ticket, $2472 Ă· 3 = $824

824 x 3 = 2472

Question 25.

Carmen has 468 trading cards in 4 binders. If each binder has the same number of cards, how many cards are in each binder?

Answer:

117 cards.

Explanation:

Carmen has 468 trading cards in 4 binders.

Number of cards in each binder,

117 x 4 = 468

**Test Practice**

Question 26.

A cabinet with 4 shelves can hold 1,640 CDs. If the shelves each hold the same number of CDs, how many CDs does each shelf hold?

A. 400 CDs

B. 410 CDs

C. 420 CDs

D. 424 CDs

Answer:

Option (B)

410 CDs

Explanation:

A cabinet with 4 shelves can hold 1,640 CDs.

Number of CDs does each shelf hold,

1,640 Ă· 4 = 410

Check: 410 x 4 = 1640

**Reflect**

**Use what you learned about dividing by a one-digit divisor to complete the graphic organizer.**

Now reflect on the ESSENTIAL QUESTION? Write your answer below.

Answer:

Explanation:

Strategies used to divided the whole numbers are,

Place values,

Distributive property and

Relation between division multiplication.