All the solutions provided in **McGraw Hill My Math Grade 3 Answer Key PDF Chapter 4 Check My Progress** will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 3 Chapter 4 Check My Progress Answer Key

**Check My Progress Page No. 217-218**

Write the letter of the word that matches each definition or example.

Answer:

Explanation:

I wrote the numbers to match the words in the left to their definition or example in the right.

**Concept Check**

**Algebra Circle equal groups. Find the unknown.**

Question 10.

2 groups of 4 =

2 groups of 4 = ____

Answer:

2 groups of 4 = 8

Explanation:

2 groups of 4 =

Use repeated

4 + 4 = 8

So, 2 groups f 4 is 8.

Question 11.

4 groups of 5 =

4 groups of 5 = ____

Answer:

4 groups of 5 = 20

Explanation:

4 groups of 5

Use repeated addition

5 + 5 + 5 + 5 = 20

So, 4 groups of 5 = 20.

**Use repeated addition to multiply.**

Question 12.

6 × 2 = ____

___ + ___ + ___ + ___ + ___ + ___ = ____

Answer:

6 x 2 = 12

2 + 2 + 2 + 2 + 2 + 2 = 12

Explanation:

6 x 2 = 12 is multiplication sentence

The addition sentence is 2 + 2 + 2 + 2 + 2 + 2 = 12.

Question 13.

2 × 5 = ____

___ + ___ = ____

Answer:

2 x 5 = 10

5 + 5 = 10

Explanation:

2 x 5 = 10 is the multiplication sentence

The addition sentence is 5 + 5 = 10.

**Write an addition sentence and a multiplication sentence to show equal rows.**

Question 14.

____ + ___ + ___ = ____

____ × ____ = ____

Answer:

4 + 4 + 4 = 12

3 x 4 = 12

Explanation:

There are 3 rows of counters

Each row has 4 counters

3 rows of 4 counters is

3 x 4

Use repeated addition

4 + 4 + 4 = 12

3 x 4 = 12

So, the addition and multiplication sentence are 4 + 4 + 4 = 12 and 3 x 4 = 12.

Question 15.

____ + ____ + ___ + ___ = ____

____ × ____ = ____

Answer:

5 + 5 + 5 + 5 = 20

4 x 5 = 20

Explanation:

There are 4 rows of squares

Each row has 5 squares in the given array

4 rows of 5 squares

4 x 5

Use repeated addition

5 + 5 + 5 + 5 = 20

4 x 5 = 20

So, the addition and multiplication sentence are 5 + 5 + 5 + 5 = 20 and 4 x 5 = 20.

**Problem Solving**

Question 16.

Seven tigers each make 4 paw prints. How many paw prints are there altogether? Write a multiplication sentence with a symbol for the unknown. Then solve.

Answer:

7 x 4 = ?

7 x 4 = 28

Explanation:

Seven tigers each make 4 paw prints

7 groups of 4

Use repeated addition

4 + 4 + 4 + 4 + 4 + 4 + 4 = 28

So, the multiplication sentence that solves the problem is 7 x 4 = 28.

Question 17.

Adult tickets to the talent show cost $6. How much will 4 adult tickets cost? Draw an array to solve. Then write two multiplication sentences.

Answer:

Explanation:

Adult tickets to the talent show cost $6

We need to find the cost of 4 adult tickets

I drew an array to solve

4 rows of 5 squares n each row

The multiplication sentence that solves the problem is

4 x $6 =

Use repeated addition

6 + 6 + 6 + 6 = 24

So, 4 x 6 = 24 and 6 x 4 = 24 are the two multiplication sentences.

**Test Practice**

Question 18.

Which of the following number sentences is related to the addition sentence 5 + 5 + 5 = 15?

A. 3 × 5 = 15

B. 3 + 5 = 8

C. 15 – 5 = 10

D. 5 + 3 = 8

Answer:

A. 3 × 5 = 15

Explanation:

The given addition sentence is 5 + 5 + 5 = 15

In the above addition sentence there are 3 equal groups of 5

So, the related multiplication sentence is 3 x 5 = 15.