All the solutions provided inÂ **McGraw Hill My Math Grade 1 Answer Key PDF Chapter 2 Lesson 8 Subtract from 4 and 5 **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 1 Answer Key Chapter 2 Lesson 8 Subtract from 4 and 5

**Explore and Explain**

Answer:

Explanation:

I used to model the problem

There are 4 crocodiles in a lake

3 crocodiles get out

I drew 4 and marked X on 3

1 is left

So, 1 crocodile is still in the lake.

**Teacher Directions:** Use to model. There are 4 crocodiles in a lake. 3 crocodiles get out. How many crocodiles are still in the lake? Trace your cubes and mark X on the cubes to show the crocodiles that get out. Write the subtraction number sentence.

**See and Show**

You can subtract from 4 and 5. Subtract 2 from 4.

4 – 2 = __2__ The difference is 2.

Subtract 1 from 5.

5 – 1 = __4__ The difference is 4.

**Start with 4 . Subtract some cubes. Cross out . Write different ways to subtract from 4.**

**Subtract from 4**

Question 1.

4 – ____ = ____

Answer:

Explanation:

I started with 4

Subtracted 1 cube

Crossed out 1

So, the difference of 4 and 1 is 3.

Question 2.

4 – ____ = ____

Answer:

Explanation:

I started with 4

Subtracted 2 cubes

Crossed out 2

So, the difference of 4 and 2 is 2.

Question 3.

4 – ____ = ____

Answer:

Explanation:

I started with 4

Subtracted 3 cubes

Crossed out 3

So, the difference of 4 and 3 is 1.

Question 4.

4 – ____ = ____

Answer:

Explanation:

I started with 4

Subtracted 4 cubes

Crossed out 4

So, the difference of 4 and 4 is 0.

**Talk Math** What does difference mean in subtraction?

Answer:

Difference is the result of subtracting one number from another number.

**On My Own**

**Start with 5 Subtract some cubes. Cross out Write different ways to subtract from 5.**

**Subtract from 5**

Question 5.

5 – ____ = ____

Answer:

Explanation:

I started with 5

Subtracted 1 cube

Crossed out 1

So, the difference of 5 and 1 is 4.

Question 6.

5 – ____ = ____

Answer:

Explanation:

I started with 5

Subtracted 2 cube

Crossed out 2

So, the difference of 5 and 2 is 3.

Question 7.

5 – ____ = ____

Answer:

Explanation:

I started with 5

Subtracted 3 cube

Crossed out 3

So, the difference of 5 and 3 is 2.

Question 8.

5 – ____ = ____

Answer:

Explanation:

I started with 5

Subtracted 4 cube

Crossed out 4

So, the difference of 5 and 4 is 1.

Question 9.

5 – ____ = ____

Answer:

Explanation:

I started with 5

Subtracted 5 cube

Crossed out 5

So, the difference of 5 and 5 is 0.

**Subtract. Use Work Mat 3 and **

Question 10.

4 – 1 = ___

Answer:

Explanation:

I started with 4

Subtracted 1 cube

Crossed out 1

So, the difference of 4 and 1 is 3.

Question 11.

5 – 2 = ____

Answer:

Explanation:

I started with 5

Subtracted 2 cubes

Crossed out 2

So, the difference of 5 and 2 is 3.

Question 12.

5 – 5 = ____

Answer:

Explanation:

I started with 5

Subtracted 5 cubes

Crossed out 5

So, the difference of 5 and 5 is 0.

Question 13.

4 – 2 = ____

Answer:

Explanation:

I started with 4

Subtracted 2 cubes

Crossed out 2

So, the difference of 4 and 2 is 2.

Question 14.

Answer:

Explanation:

The difference of 5 and 3 is 2

So, 5 – 3 = 2.

Question 15.

Answer:

Explanation:

The difference of 5 and 0 is 5

So, 5 – 0 = 5.

Question 16.

Answer:

Explanation:

The difference of 4 and 4 is 0

So, 4 – 4 = 0.

**Problem Solving**

**Write a subtraction number sentence.**

Question 17.

Yuan draws 4 hippos. He crosses out 2. How many hippos are there now?

_____ – ____ = ____ hippos

Answer:

4 – 2 = 2 hippos

Explanation:

Yuan draws 4 hippos

He crosses out 2

4 – 2 = 2 is the subtraction number sentence

So, 2 hippos are there now.

Question 18.

Billy, draws 5 lions. He crosses out 1. How many lions are there now?

____ – ____ = ___ lions

Answer:

5 – 1 = 4 lions

Explanation:

Billy, draws 5 lions

He crosses out 1

5 – 1 = 4 is the subtraction number sentence

So, 4 lions are there now.

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

________________________________

________________________________

________________________________

________________________________

Answer:

5 – 2 = 3

Explanation:

5 – 2 = 4 is wrong subtraction sentence

I started with 5

Subtracted 2 cubes

Crossed out 2

So, the difference of 5 and 2 is 3

5 – 2 = 3 is the right subtraction sentence.

### McGraw Hill My Math Grade 1 Chapter 2 Lesson 8 My Homework Answer Key

**Practice**

**Write different ways to subtract from 4 and 5.**

Question 1.

4 – ____ = ____

Answer:

4 – 0 = 4

Explanation:

The difference of 4 and 0 is 4

So, 4 – 0 = 4.

Question 2.

4 – ____ = ____

Answer:

4 – 1 = 3

Explanation:

The difference of 4 and 1 is 3

So, 4 – 1 = 3.

Question 3.

4 – ____ = ____

Answer:

4 – 2 = 2

Explanation:

The difference of 4 and 2 is 2

So, 4 – 2 = 2.

Question 4.

4 – ____ = ____

Answer:

4 – 3 = 1

Explanation:

The difference of 4 and 3 is 1

So, 4 – 3 = 1.

Question 5.

5 – ____ = ____

Answer:

5 – 0 = 5

Explanation:

The difference of 5 and 0 is 5

So, 5 – 0 = 5.

Question 6.

5 – ____ = ____

Answer:

5 – 1 = 4

Explanation:

The difference of 5 and 1 is 4

So, 5 – 1 = 4.

Question 7.

5 – ____ = ____

Answer:

5 – 2 = 3

Explanation:

The difference of 5 and 2 is 3

So, 5 – 2 = 3.

Question 8.

5 – ____ = ____

Answer:

5 – 3 = 2

Explanation:

The difference of 5 and 3 is 2

So, 5 – 3 = 2.

**Subtract.**

Question 9.

5 – 3 = ____

Answer:

5 – 3 = 2

Explanation:

The difference of 5 and 3 is 2

So, 5 – 3 = 2.

Question 10.

4 – 4 = ____

Answer:

0

Explanation:

The difference of 4 and 4 is 0

So, 4 – 4 = 0.

**Subtract.**

Question 11.

4 – 2 = ____

Answer:

2

Explanation:

The difference of 4 and 2 is 2

So, 4 – 2 = 2.

Question 12.

5 – 1 = ____

Answer:

4

Explanation:

The difference of 5 and 1 is 4

So, 5 – 1 = 4.

Question 13.

4 – 1 = ____

Answer:

3

Explanation:

The difference of 4 and 1 is 3

So, 4 – 1 = 3.

Question 14.

5 – 4 = ____

Answer:

1

Explanation:

The difference of 5 and 4 is 1

So, 5 – 4 = 1.

Question 15.

5 – 0 = ____

Answer:

5

Explanation:

The difference of 5 and 5 is 0

So, 5 – 5 = 0.

Question 16.

4 – 3 = ____

Answer:

1

Explanation:

The difference of 4 and 3 is 1

So, 4 – 3 = 1.

Question 17.

Answer:

Explanation:

The difference of 5 and 5 is 0

So, 5 – 5 = 0.

Question 18.

Answer:

Explanation:

The difference of 5 and 2 is 3

So, 5 – 2 = 3.

Question 19.

Answer:

Explanation:

The difference of 4 and 0 is 4

So, 4 – 0 = 4.

Question 20.

Chad rents 5 movies. He watches 3 of the movies. How many movies does he have left to watch?

____ movies

Answer:

2 movies

Explanation:

Chad rents 5 movies

He watches 3 of the movies

I started with 5

Subtracted 3 cube

Crossed out 3

The difference of 5 and 3 is 2

So, 2 movies are left.

**Test Practice**

Question 21.

4 – 4 = ___

(A) 0

(B) 1

(C) 6

(D) 8

Answer:

(A) 0

Explanation:

The difference of 4 and 4 is 0

So, 4 – 4 = 0.

**Math at Home** Give your child 5 objects. Have him or her subtract different numbers from 4 or 5 and tell the difference.