# McGraw Hill My Math Grade 1 Chapter 2 Lesson 3 Answer Key Subtraction Number Sentences

All the solutions provided inÂ McGraw Hill My Math Grade 1 Answer Key PDF Chapter 2 Lesson 3 Subtraction Number Sentences will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 1 Answer Key Chapter 2 Lesson 3 Subtraction Number Sentences

Explore and Explain

Explanation:
There are 7 zebras playing in a field
5 of the zebras get in the pond
I drew an X on the zebras that get in the pond
7 – 5 = 2
So, 2 Zebras are still playing in the field.

Teacher Directions: Use to model. There are 7 zebras playing in a field. 5 of the zebras get in the pond. Draw an X on the zebras that get in the pond. How many zebras are still playing in the field? Write the subtraction number sentence.

See and Show

You can write a subtraction number sentence.

Explanation:
I wrote the number sentence 5 – 2 = 3
5 – 2 = 3 is a subtraction number sentence.
3 is the difference.

Write a subtraction number sentence.

Question 1.

Explanation:
8 – 3 = 5 is the subtraction number sentence
5 is the difference.

Question 2.

Explanation:
3 – 2 = 1 is the subtraction number sentence
1 is the difference.

Question 3.

Explanation:
6 – 2 = 4 is the subtraction number sentence
4 is the difference.

Question 4.

Explanation:
4 – 2 = 2 is the subtraction number sentence
2 is the difference.

Talk Math
What does – mean?

On My Own

Write a subtraction number sentence.

Question 5.

Explanation:
4 – 2 = 2 is the subtraction number sentence
2 is the difference.

Question 6.

Explanation:
5 – 3 = 2 is the subtraction number sentence
2 is the difference.

Question 7.

Explanation:
6 – 4 = 2 is the subtraction number sentence
2 is the difference.

Question 8.

Explanation:
9 – 4 = 5 is the subtraction number sentence
5 is the difference.

Question 9.

Explanation:
7 – 6 = 1 is the subtraction number sentence
1 is the difference.

Question 10.

Explanation:
2 – 1 = 1 is the subtraction number sentence
1 is the difference.

Question 11.

Explanation:
9 – 8 = 1 is the subtraction number sentence
1 is the difference.

Question 12.

Explanation:
7 – 4 = 3 is the subtraction number sentence
3 is the difference.

Problem Solving

Question 13.
There are 5 cars racing. 2 cars stop. How many cars are still racing?

Explanation:
There are 5 cars racing. 2 cars stop
5 – 2 = 3 is the subtraction number sentence
3 is the difference
2 cars are still racing.

Question 14.
Kayla has 4 rockets. She gives some rockets away. She has 1 rocket left. How many rockets did she give away?

Explanation:
Kayla has 4 rockets
She gives some rockets away. She has 1 rocket left
4 – 1 = 3 is the subtraction number sentence
3 is the difference
Kayla gave away 3 rockets.

HOT Problem By using two of these numbers each time, write as many subtraction number sentences as you can.
_________________________________
_________________________________
_________________________________
_________________________________

8 – 6 = 2
8 – 2 = 6

Explanation:
The subtraction sentences using the given numbers are 8 – 6 = 2 and 8 – 2 = 6.

### McGraw Hill My Math Grade 1 Chapter 2 Lesson 3 My Homework Answer Key

Practice

Write a subtraction number sentence.

Question 1.

Explanation:
3 – 1 = 2 is the subtraction number sentence
2 is the difference.

Question 2.

Explanation:
9 – 2 = 7 is the subtraction number sentence
7 is the difference.

Question 3.

Explanation:
5 – 4 = 1 is the subtraction number sentence
1 is the difference.

Question 4.

Explanation:
4 – 3 = 1 is the subtraction number sentence
1 is the difference.

Write a subtraction number sentence.

Question 5.

Explanation:
8 – 7 = 1 is the subtraction number sentence
1 is the difference.

Question 6.

Explanation:
4 – 1 = 3 is the subtraction number sentence
3 is the difference.

Question 7.
There are 7 elephants in a pond. 3 elephants get out. How many elephants are left?
_____ Â ____ Â ____ elephants
7 3 4

Explanation:
There are 7 elephants in a pond
3 elephants get out
7 – 3 = 4 is the subtraction number sentence
4 is the difference
4 elephants are left.

Vocabulary Check

Complete each sentence.

difference subtraction number sentence

Question 8.
6 – 4 = 2 is a _________________________________
subtraction number sentence

Explanation:
6 – 4 = 2 is a subtraction number sentence.

Question 9.
In 3 – 2 = 1, the _______ is 1.