All the solutions provided in 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
Answer:
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.
Answer:
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.
Answer:
Explanation:
8 – 3 = 5 is the subtraction number sentence
5 is the difference.
Question 2.
Answer:
Explanation:
3 – 2 = 1 is the subtraction number sentence
1 is the difference.
Question 3.
Answer:
Explanation:
6 – 2 = 4 is the subtraction number sentence
4 is the difference.
Question 4.
Answer:
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.
Answer:
Explanation:
4 – 2 = 2 is the subtraction number sentence
2 is the difference.
Question 6.
Answer:
Explanation:
5 – 3 = 2 is the subtraction number sentence
2 is the difference.
Question 7.
Answer:
Explanation:
6 – 4 = 2 is the subtraction number sentence
2 is the difference.
Question 8.
Answer:
Explanation:
9 – 4 = 5 is the subtraction number sentence
5 is the difference.
Question 9.
Answer:
Explanation:
7 – 6 = 1 is the subtraction number sentence
1 is the difference.
Question 10.
Answer:
Explanation:
2 – 1 = 1 is the subtraction number sentence
1 is the difference.
Question 11.
Answer:
Explanation:
9 – 8 = 1 is the subtraction number sentence
1 is the difference.
Question 12.
Answer:
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?
Answer:
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?
Answer:
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.
_________________________________
_________________________________
_________________________________
_________________________________
Answer:
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.
Answer:
Explanation:
3 – 1 = 2 is the subtraction number sentence
2 is the difference.
Question 2.
Answer:
Explanation:
9 – 2 = 7 is the subtraction number sentence
7 is the difference.
Question 3.
Answer:
Explanation:
5 – 4 = 1 is the subtraction number sentence
1 is the difference.
Question 4.
Answer:
Explanation:
4 – 3 = 1 is the subtraction number sentence
1 is the difference.
Write a subtraction number sentence.
Question 5.
Answer:
Explanation:
8 – 7 = 1 is the subtraction number sentence
1 is the difference.
Question 6.
Answer:
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?
_____ ____
____ elephants
Answer:
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 _________________________________
Answer:
subtraction number sentence
Explanation:
6 – 4 = 2 is a subtraction number sentence.
Question 9.
In 3 – 2 = 1, the _______ is 1.
Answer:
difference
Explanation
In 3 – 2 = 1, the difference is 1.
Math at Home Using buttons, beans, or cereal, have your child act out subtraction stories, Have him or her write subtraction number sentences for the stories.