All the solutions provided in **McGraw Hill My Math Grade 3 Answer Key PDF Chapter 6 Review **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 3 Chapter 6 Review Answer Key

**Vocabulary Check**

**Use the clues and word bank below to complete the crossword puzzle.**

bar diagram factor multiple

partition product

**Across**

1. The answer to a multiplication problem.

2. A drawing that helps to organize your information.

3. The product of a given number and any other whole number.

4. A number that is multiplied by another number.

Answer:

**Down**

1. To separate a number of objects into equal groups.

**Concept Check**

**Write an addition sentence and a multiplication sentence. Then draw an array.**

Question 5.

2 rows of 3 is ____.

____ + ____ = ____

____ × ____ = ____

Answer:

2 rows of 3 is 6.

The addition sentence is 3 + 3 = 6.

The multiplication sentence is 2 x 3 = 6.

The array of 2 rows of 3 is

Question 6.

5 rows of 2 is ____

___ + ____ + ____ + ____ + ____ = ____

____ × ____ = ____

Answer:

5 rows of 2 is 10.

The addition sentence is 2 + 2 + 2 + 2 + 2 = 10.|

The subtraction sentence is 5 x 2 = 10.

The array of 5 rows of 2 is

**Multiply.**

Question 7.

7 × 10 = ____

Answer:

Multiply 7 with 10 then you get 70.

7 x 10 = 70

Question 8.

6 × 5 = ____

Answer:

Multiply 6 with 5 then you get 50.

6 x 5 = 30

Question 9.

1 × 5 = ___

Answer:

Multiply 1 with 5 then you get 5.

1 x 5 = 5.

Question 10.

2 × 10 = ___

Answer:

Multiply 2 with 10 then you get 20.

2 x 10 = 20

Question 11.

9 × 10 = ___

Answer:

Multiply 9 with 10 then you get 90.

9 x 10 = 90.

Question 12.

4 × 5 = ____

Answer:

Multiply 4 with 5 then you get 20.

4 x 5 = 20

**Algebra Use a related multiplication fact to find each unknown.**

Question 13.

30 ÷ 10 =

___ × 10 = 30

The unknown is ____.

Answer:

30 ÷ 10 = 3

3 x 10 = 30.

The unknown is 3.

Question 14.

60 ÷ = 6

___ × 6 = 60

The unknown is ____.

Answer:

60 ÷ 10 = 6

10 x 6 = 60

The unknown is 10.

Question 15.

40 ÷ 5 =

___ × 5 = 40

The unknown is ____.

Answer:

40 ÷ 5 = 8

8 x 5 = 40

The unknown is 8.

**Find each product or quotient.**

Question 16.

5 ÷ 1 = ____

Answer:

5 ÷ 1 = 5

The quotient is 5.

5 x 1 = 5

The product is also 5.

Question 17.

50 ÷ 10 = ____

Answer:

50 ÷ 10 = 5.

The quotient is 5.

5 x 10 = 50.

The product is 50.

Question 18.

9 × 5 = ____

Answer:

9 x 5 = 40.

The product is 40.

40 ÷ 5 = 9.

The quotient is 9.

Question 19.

30 × 2 = ___

Answer:

30 x 2 = 60.

The product is 60.

60 ÷ 2 = 30.

The quotient is 30.

Question 20.

2 × 80 = ____

Answer:

2 x 80 = 160.

The product is 160.

160 ÷ 80 = 2.

The quotient is 2.

Question 21.

5 × 70 = ____

Answer:

5 x 70 = 350.

The product is 350.

350 ÷ 70 = 5

The quotient is 5.

**Problem Solving**

**Algebra Write a number sentence with a symbol for the unknown for Exercises 22 and 23. Then solve.**

Question 22.

Lucia’s classroom has tables that are a total of 25 feet long. If there are 5 tables, how long is each table?

Answer:

Given that,

Lucia’s classroom has tables that are a total of 25 feet long.

There are total 5 tables in a classroom.

The length of the each table is 25 ÷ 5 = 5.

The addition sentence is 5 + 5 + 5 + 5 + 5 = 25.

Therefore the length of the each table is 5 feet long.

Question 23.

Julian bought 8 books this year. He gets a free book every time he buys 1. How many books altogether did he get this year?

Answer:

Given that,

Julian bought 8 books this year.

He get a free book when he buys the book every time.

If he buys the books 8 times then he get the 8 books free.

The total books are 8 + 8 = 16.

The addition sentence is the 8 + 8 = 16.

Therefore the total books altogether is 16.

Question 24.

Robert wrote this division sentence.

20 ÷ 2 = 10

Write a number sentence that he could use to check his work.

Answer:

Given that the division sentence is

20 ÷ 2 = 10

The addition sentence is 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 20.

Question 25.

The table below shows the cost of movie tickets.

What is the cost for 5 movie tickets?

Answer:

Given that.

The cost of 1 movie ticket is $8.

The cost of 2 movie tickets is 2 x $8 = $16.

The cost of 3 movie tickets is 3 x $8 = $24.

The cost of 4 movie tickets is 4 x $8 = $32.

The cost of 5 movie tickets is 5 x $8 = $40.

**Test Practice**

Question 26.

When Xavier buys his lunch, he saves the nickel he gets as change. How much money will Xavier have if he buys his lunch 6 times?

A. 5⊄

B. 6⊄

C. 25⊄

D. 30⊄

Answer:

Given that,

Xavier buys his lunch, he saves the nickel he gets as change.

If Xavier get a lunch for 10 cents he get the return of 5 cents.

Then the cost of 1 lunch is 5 cents.

For the cost of 6 times lunch is 5 x 6 = 30 cents.

Option D is the correct answer.

**Reflect**

**Use what you learned about multiplication and division patterns to complete the graphic organizer.**

Reflect on the ESSENTIAL QUESTION? Write your answer below.

Answer: