All the solutions provided in 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.