All the solutions provided in **McGraw Hill Math Grade 2 Answer Key PDF Chapter 1 Lesson 8 Subtract All and Subtract Zero** will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Answer Key Chapter 1 Lesson 8 Subtract All and Subtract Zero

**Explore and Explain**

**Teacher Directions:** Draw a picture and write a number sentence to solve the problem. Mary helped wash dogs at the pet store. There were 7 dogs to be washed. Mary washed 7 of them. How many dogs were left to be washed?

Explanation:

. There were 7 dogs to be washed.

Mary washed 7 of them.

7 – 7 = 0

0 dogs were left to be washed.

**See and Show**

You can subtract to find the difference Find how many frogs are left.

**Subtract.**

Question 1.

13 – 13 = ____

13 – 0 = _____

Answer:

13 – 13 = 0

13 – 0 = 13

Explanation:

When zero is subtracted from a number

then the answer remains as the number

Question 2.

____ = 7 – 0

7 – 7 = ____

Answer:

7 = 7 – 0

7 – 7 = 0

Explanation:

When zero is subtracted from a number

then the answer remains as the number

Question 3.

6 – 6 = ____

____ = 6 – 0

Answer:

6 – 6 = 0

6 = 6 – 0

Explanation:

When zero is subtracted from a number

then the answer remains as the number

Question 4.

8 – 0 = ____

8 – 8 = ___

Answer:

8 – 0 = 8

8 – 8 = 0

Explanation:

When zero is subtracted from a number

then the answer remains as the number

**Talk Math** Explain how you know 8 – 8 = 0 and 8 – 0 = 8.

Explanation:

When zero is subtracted from a number

then the answer remains as the number