All the solutions provided in **McGraw Hill My Math Grade 1 Answer Key PDF Chapter 2 Check My Progress** will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 1 Chapter 2 Check My Progress Answer Key

**Check My Progress Page No. 139-140**

**Vocabulary Check**

**Draw lines to match.**

Answer:

Explanation:

I drew lines lines to match the words with their meaning.

**Concept Check**

**Tell a number story. Write how many are left.**

Question 5.

How many hippos are left in the water?

____ hippos

Answer:

5 hippos

Explanation:

There are 7 hippos in the water

2 hippos left the water

Subtract 2 from 7

7 – 2 = 5

So, 5 hippos are left.

**Write a subtraction number sentence.**

Question 6.

Answer:

Explanation:

There are 5 giraffes

1 is taken out

4 are left

So, 5 – 1 = 4.

**Subtract.**

Question 7.

Answer:

Explanation:

The difference of 9 and 3 is 6

So, 9 – 3 = 6.

Question 8.

7 – 2 = ____

Answer:

5

Explanation:

The difference of 7 an d2 is 5

So, 7 – 5 = 2

Question 9.

There are 5 monkeys on a tree. 0 monkeys get out of the tree. How many monkeys are left on the tree?

____ monkeys

Answer:

5 monkeys

Explanation:

There are 5 monkeys on a tree

0 monkeys get out of the tree

5 – 0 = 5

So, there are 5 monkeys left on the tree.

**Test Practice**

Question 10.

There are 9 owls. 3 owls fly away. How many owls are left?

(A) 6 owls

(B) 11 owls

(C) 7 owls

(D) 12 owls

Answer:

(A) 6 owls

Explanation:

There are 9 owls

3 owls fly away

Subtract 3 from 9

9 – 3 = 6

So, 6 owls are left.

**Check My Progress Page No. 165 – 166**

**Circle the correct answer.**

difference compare

Question 1.

The words more and fewer can be used to ____ the number of objects in two different groups.

Answer:

The words more and fewer can be used to compare the number of objects in two different groups.

**Concept Check**

**Write a subtraction number sentence.**

Question 2.

Answer:

Explanation:

There are 5 rhinos

3 are taken off

Subtract 3 from 5

5 – 3 = 2

So, 2 rhinos are left.

Question 3.

Answer:

Explanation:

There are 4 giraffes

3 are taken off

Subtract 3 from 4

4 – 3 = 1

So, 1 giraffe is left.

**Subtract.**

Question 4.

Answer:

Explanation:

The difference of 6 and 4 is 2

6 – 4 = 2.

Question 5.

Answer:

Explanation:

Any number subtracted from the same number is 0

So, The difference of 4 and 4 is 0.

Question 6.

Answer:

Explanation:

The difference of 5 and 1 is 4

5 – 1 = 4.

**Subtract.**

Question 7.

5 – 4 = ____

Answer:

1

Explanation:

The difference of 5 and 4 is 1

5 – 4 = 1.

Question 8.

6 – 0 = ____

Answer:

6

Explanation:

Any number subtracted by 0 the answer is the number itself

6 – 0 = 6.

Question 9.

6 – 2 = ____

Answer:

4

Explanation:

The difference of 6 and 2 is 4

6 – 2 = 4.

Question 10.

7 – 7 = ____

Answer:

0

Explanation:

The difference of any number from itself is 0

So, 7 – 7 = 0.

Question 11.

7 – 4 = ____

Answer:

7 – 4 = 3

Explanation:

The difference of 7 and 4 is 3

7 – 4 = 3.

Question 12.

4 – 2 = ____

Answer:

2

Explanation:

The difference of 4 and 2 is 2

4 – 2 = 2.

Question 13.

There are 6 beetles. There are 4 butterflies. How many fewer butterflies are there than beetles?

____ – ____ = ____ fewer butterflies

Answer:

6 – 4 = 2 fewer butterflies

Explanation:

There are 6 beetles

There are 4 butterflies

Subtract 4 from 6

6 – 4 = 2

So, there are 2 fewer butterflies than beetles.

**Test Practice**

Question 14.

Rachel sees 7 caterpillars on a leaf. 5 of them crawl away. How many caterpillars are on the leaf now?

(A) 12 caterpillars

(B) 3 caterpillars

(C) 11 caterpillars

(D) 2 caterpillars

Answer:

(D) 2 caterpillars

Explanation:

Rachel sees 7 caterpillars on a leaf

5 of them crawl away

Subtract 5 from 7

7 – 5 = 2

So, 2 caterpillars are on the leaf now.