All the solutions provided inÂ **McGraw Hill My Math Grade 1 Answer Key PDF Chapter 2 Lesson 10 Subtract from 8 **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 1 Answer Key Chapter 2 Lesson 10 Subtract from 8

**Explore and Explain**

Answer:

**Teacher Directions:** Use to model. 8 koalas are on a tree. 6 of the koalas climb away. How many koalas are still on the tree? Trace your cubes and mark Xs on the number of koalas that climb away. Write the subtraction number sentence.

**See and Show**

There are many ways to subtract from 8. Subtract 4 from 8.

8 – 4 = __4__

The difference is 4.

Subtract 6 from 8.

8 – 6 = __2__

The difference is 2.

**Start with 8 Subtract some cubes. Write different ways to subtract from 8.**

**Subtract from 8**

Question 1.

8 – ___ = ____

Answer:

Explanation:

I started with 8

Subtracted 1 cube

Crossed out 1

So, the difference of 8 and 1 is 7.

Question 2.

8 – ___ = ____

Answer:

Explanation:

I started with 8

Subtracted 2 cubes

Crossed out 2

So, the difference of 8 and 2 is 6.

Question 3.

8 – ___ = ____

Answer:

Explanation:

I started with 8

Subtracted 3 cubes

Crossed out 3

So, the difference of 8 and 3 is 5.

Question 4.

8 – ___ = ____

Answer:

Explanation:

I started with 8

Subtracted 4 cubes

Crossed out 4

So, the difference of 8 and 4 is 4.

Question 5.

8 – ___ = ____

Answer:

Explanation:

I started with 8

Subtracted 5 cubes

Crossed out 5

So, the difference of 8 and 5 is 3.

Question 6.

8 – ___ = ____

Answer:

Explanation:

I started with 8

Subtracted 6 cubes

Crossed out 6

So, the difference of 8 and 6 is 2.

**Talk Math** How do you know 8 – 5 = 3? Explain.

Answer:

I started with 8

Subtracted 5 cubes

Crossed out 5

So, the difference of 8 and 5 is 3.

**On My Own**

**Use Work Mat 3 and Subtract.**

Question 7.

7 – 3 = ___

Answer:

Explanation:

I started with 7

Subtracted 3 cubes

Crossed out 3

So, the difference of 7 and 3 is 5.

Question 8.

8 – 5 = ___

Answer:

3

Explanation:

I started with 8

Subtracted 5 cubes

Crossed out 5

So, the difference of 8 and 5 is 3.

Question 9.

8 – 1 = ____

Answer:

Explanation:

I started with 8

Subtracted 1 cube

Crossed out 1

So, the difference of 8 and 1 is 7.

Question 10.

8 – 7 = ____

Answer:

Explanation:

I started with 8

Subtracted 7 cubes

Crossed out 7

So, the difference of 8 and 7 is 1.

Question 11.

8 – 0 = ___

Answer:

Explanation:

I started with 8

Subtracted 0

The difference of any number subtracted by 0 is the number itself

So, the difference of 8 and 0 is 8.

Question 12.

8 – 6 = ____

Answer:

Explanation:

I started with 8

Subtracted 6 cubes

Crossed out 6

So, the difference of 8 and 6 is 2.

Question 13.

8 – 2 = ___

Answer:

Explanation:

I started with 8

Subtracted 2 cubes

Crossed out 2

So, the difference of 8 and 2 is 6.

Question 14.

8 – 4 = __

Answer:

Explanation:

I started with 8

Subtracted 4 cubes

Crossed out 4

So, the difference of 8 and 4 is 4.

Question 15.

8 – 8 = ___

Answer:

Explanation:

I started with 8

Subtracted 8 cubes

Crossed out 8

So, the difference of 8 and 8 is 0.

Question 16.

5 – 4 = ___

Answer:

Explanation:

I started with 5

Subtracted 4 cubes

Crossed out 4

So, the difference of 5 and 4 is 1.

Question 17.

Answer:

Explanation:

The difference of 8 and 6 is 2

So, 8 – 6 = 2.

Question 18.

Answer:

Explanation:

The difference of 6 and 2 is 4

So, 6 – 2 = 4.

Question 19.

Answer:

Explanation:

The difference of 7 and 6 is 1

So, 7 – 6 = 1.

Question 20.

Answer:

Explanation:

The difference of 8 and 0 is 8

So, 8 – 0 = 8.

Question 21.

Answer:

Explanation:

The difference of 6 and 5 is 1

So, 6 – 5 = 1.

Question 22.

Answer:

Explanation:

The difference of 8 and 3 is 5

So, 8 – 3 = 5.

**Problem Solving**

**Write a subtraction number sentence to solve.**

Question 23.

There are 8 giraffes drinking water. 3 giraffes go away. How many giraffes are left drinking water?

____ – ____ = ____ giraffes

Answer:

8 – 3 = 5 giraffes

Explanation:

There are 8 giraffes drinking water

3 giraffes go away

I started with 8

Subtracted 3 cubes

Crossed out 3

So, the difference of 8 and 3 is 5.

Question 24.

There are 6 wolves playing in a field. 2 wolves run away. How many wolves are left in the field?

_____ – ____ = ____ wolves

Answer:

6 – 2 = 4 wolves

Explanation:

There are 6 wolves playing in a field

2 wolves run away

I started with 6

Subtracted 2 cubes

Crossed out 2

The difference of 6 and 2 is 4

So, 4 wolves are left in the field.

**HOT Problem** Nia wrote this subtraction number sentence. Tell why Nia is wrong. Make it right.

_________________________________

_________________________________

_________________________________

_________________________________

Answer:

Nia is wrong, 8 – 5 = 3

Explanation:

I started with 8

Subtracted 5 cubes

Crossed out 5

So, the difference of 8 and 5 is 3.

### McGraw Hill My Math Grade 1 Chapter 2 Lesson 10 My Homework Answer Key

**Practice**

**Write different ways to subtract from 8.**

Question 1.

8 – ____ = ____

Answer:

Explanation:

I started with 8

Subtracted 1 cube

Crossed out 1

So, the difference of 8 and 1 is 7.

Question 2.

8 – ____ = ____

Answer:

Explanation:

I started with 8

Subtracted 2 cubes

Crossed out 2

So, the difference of 8 and 2 is 6.

Question 3.

8 – ____ = ____

Answer:

Explanation:

I started with 8

Subtracted 3 cubes

Crossed out 3

So, the difference of 8 and 3 is 5.

Question 4.

8 – ____ = ____

Answer:

Explanation:

I started with 8

Subtracted 4 cubes

Crossed out 4

So, the difference of 8 and 4 is 4.

Question 5.

8 – ____ = ____

Answer:

Explanation:

I started with 8

Subtracted 5 cubes

Crossed out 5

So, the difference of 8 and 5 is 3.

Question 6.

8 – ____ = ____

Answer:

Explanation:

I started with 8

Subtracted 6 cubes

Crossed out 6

So, the difference of 8 and 6 is 2.

Question 7.

8 – ____ = ____

Answer:

Explanation:

I started with 8

Subtracted 7 cubes

Crossed out 7

So, the difference of 8 and 7 is 1.

Question 8.

8 – ____ = ____

Answer:

Explanation:

I started with 8

Subtracted 8 cubes

Crossed out 8

So, the difference of 8 and 8 is 0.

**Subtract.**

Question 9.

8 – 3 = _____

Answer:

Explanation:

I started with 8

Subtracted 3 cubes

Crossed out 3

So, the difference of 8 and 3 is 5.

Question 10.

8 – 4 = ____

Answer:

Explanation:

I started with 8

Subtracted 4 cubes

Crossed out 4

So, the difference of 8 and 4 is 4.

**Subtract.**

Question 11.

8 – 2 = ____

Answer:

Explanation:

I started with 8

Subtracted 2 cubes

Crossed out 2

So, the difference of 8 and 2 is 6.

Question 12.

7 – 4 = ____

Answer:

Explanation:

I started with 7

Subtracted 4 cubes

Crossed out 4

So, the difference of 7 and 4 is 3.

Question 13.

8 – 7 = ____

Answer:

Explanation:

I started with 8

Subtracted 7 cubes

Crossed out 7

So, the difference of 8 and 7 is 1.

Question 14.

5 – 5 = ____

Answer:

Explanation:

I started with 5

Subtracted 5 cubes

Crossed out 5

So, the difference of 5 and 5 is 0.

Question 15.

Answer:

Explanation:

The difference of 6 and 3 is 3

So, 6 – 3 = 3.

Question 16.

Answer:

Explanation:

The difference of 7 and 5 is 2

So, 7 – 5 = 2.

Question 17.

Answer:

Explanation:

The difference of 8 and 8 is 0

So, 8 – 8 = 0.

Question 18.

Shaun has 8 zebra stickers. He gives his friend 3 of them. How many stickers does Shaun have left?

___ stickers

Answer:

5 stickers

Explanation:

Shaun has 8 zebra stickers

He gives his friend 3 of them

I started with 8

Subtracted 3 cubes

Crossed out 3

So, the difference of 8 and 3 is 5.

**Test Practice**

Question 19.

There are 8 rhinos getting a drink. 6 of the rhinos walk away. How many rhinos are still getting a drink?

(A) 0 rhinos

(B) 2 rhinos

(C) 6 rhinos

(D) 14 rhinos

Answer:

(B) 2 rhinos

Explanation:

There are 8 rhinos getting a drink

6 of the rhinos walk away

I started with 8

Subtracted 6 cubes

Crossed out 6

So, the difference of 8 and 6 is 2.

**Math at Home** Collect a group of 8 objects. Have your child show you all of the numbers you can subtract from 8. Have him or her write each subtraction number sentence.