All the solutions provided in McGraw Hill My Math Grade 1 Answer Key PDF Chapter 2 Lesson 9 Subtract from 6 and 7 will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 1 Answer Key Chapter 2 Lesson 9 Subtract from 6 and 7
Explore and Explain
Answer:
Explanation:
I used to model the problem
There are 7 apes eating bananas
3 apes stop eating bananas
7 – 3 = 4
The difference of 3 from 7 is 4
So, 4 apes are still eating bananas.
Teacher Directions: Use to model. There are 7 apes eating bananas. 3 apes stop eating bananas. How many apes are still eating bananas? Trace the cubes you used. Mark X on the cubes to show the apes that stop eating bananas. Write the number.
See and Show
You can subtract from 6 and 7.
Subtract 3 from 6.
6 – 3 =3 The difference is 3.
Subtract 5 from 7
7 – 5 =2 The difference is 2.
Start with 6 Subtract some cubes. Write different ways to subtract from 6.
Subtract from 6
Question 1.
6 – ___ = ____
Answer:
Explanation:
I started with 6
Subtracted 1 cube
Crossed out 1
So, the difference of 6 and 1 is 5.
Question 2.
6 – ___ = ____
Answer:
Explanation:
I started with 6
Subtracted 2 cubes
Crossed out 2
So, the difference of 6 and 2 is 4.
Question 3.
6 – ___ = ____
Answer:
Explanation:
I started with 6
Subtracted 3 cubes
Crossed out 3
So, the difference of 6 and 3 is 3.
Question 4.
6 – ___ = ____
Answer:
Explanation:
I started with 6
Subtracted 4 cubes
Crossed out 4
So, the difference of 6 and 4 is 2.
Question 5.
6 – ___ = ____
Answer:
Explanation:
I started with 6
Subtracted 5 cubes
Crossed out 5
So, the difference of 6 and 5 is 1.
Question 6.
6 – ___ = ____
Answer:
Explanation:
I started with 6
Subtracted 6 cubes
Crossed out 6
So, the difference of 6 and 6 is 0.
Talk Math How could you use to show subtraction?
On My Own
Start with 7 Subtract some cubes. Write different ways to subtract from 7.
Subtract from 7
Question 7.
7 – ____ = ____
Answer:
Explanation:
I started with 7
Subtracted 1 cube
Crossed out 1
So, the difference of 7 and 1 is 6.
Question 8.
7 – ____ = ____
Answer:
Explanation:
I started with 7
Subtracted 2 cubes
Crossed out 2
So, the difference of 7 and 2 is 5.
Question 9.
7 – ____ = ____
Answer:
Explanation:
I started with 7
Subtracted 3 cubes
Crossed out 3
So, the difference of 7 and 3 is 5.
Question 10.
7 – ____ = ____
Answer:
Explanation:
I started with 7
Subtracted 4 cubes
Crossed out 4
So, the difference of 7 and 4 is 3.
Question 11.
7 – ____ = ____
Answer:
Explanation:
I started with 7
Subtracted 5 cubes
Crossed out 5
So, the difference of 7 and 5 is 2.
Question 12.
7 – ____ = ____
Answer:
Explanation:
I started with 7
Subtracted 6 cubes
Crossed out 6
So, the difference of 7 and 6 is 1.
Subtract. Use Work Mat 3 and
Question 13.
7 – 5 = ___
Answer:
Explanation:
I started with 7
Subtracted 5 cubes
Crossed out 5
So, the difference of 7 and 5 is 2.
Question 14.
6 – ___ = 4
Answer:
Explanation:
I started with 6
Subtracted 2 cubes
Crossed out 2
So, the difference of 6 and 2 is 4.
Question 15.
7 – ___ = 6
Answer:
Explanation:
I started with 7
Subtracted 1 cube
Crossed out 1
So, the difference of 7 and 1 is 6.
Question 16.
6 – ____ = 0
Answer:
Explanation:
I started with 6
Subtracted 6 cubes
Crossed out 6
So, the difference of 6 and 6 is 0.
Question 17.
Answer:
Explanation:
The difference of 7 and 0 is 7
So, 7 – 0 = 7.
Question 18.
Answer:
Explanation:
The difference of 7 and 6 is 1
So, 7 – 6 = 1.
Question 19.
Answer:
Explanation:
The difference of 6 and 5 is 1
So, 6 – 5 = 1.
Problem Solving
Write a subtraction number sentence to solve.
Question 20.
7 rhinos get a drink from a pond. 3 of them stop drinking. How many rhinos are still drinking?
____ – ____ = ____ rhinos
Answer:
7 – 3 = 5 rhinos
Explanation:
7 rhinos get a drink from a pond
3 of them stop drinking
I started with 7
Subtracted 3 cubes
Crossed out 3
The difference of 7 and 3 is 5
So, 5 rhinos are still drinking.
Question 21.
7 deer are walking in a field. 5 deer lie down. How many deer are still walking?
____ – ___ = ___ deer
Answer:
7 – 5 = 2 deer
Explanation:
7 deer are walking in a field
5 deer lie down
I started with 7
Subtracted 5 cubes
Crossed out 5
The difference of 7 and 5 is 2
So, 2 deer are still walking.
Write Math What happens to the number of objects
_______________
_______________
_______________
_______________
McGraw Hill My Math Grade 1 Chapter 2 Lesson 9 My Homework Answer Key
Practice
Write different ways to subtract from 6 and 7.
Question 1.
6 – ____ = _____
Answer:
Explanation:
I started with 6
Subtracted 1 cube
Crossed out 1
So, the difference of 6 and 1 is 5.
Question 2.
6 – ____ = _____
Answer:
Explanation:
I started with 6
Subtracted 2 cubes
Crossed out 2
So, the difference of 6 and 2 is 4.
Question 3.
6 – ____ = _____
Answer:
Explanation:
I started with 6
Subtracted 3 cubes
Crossed out 3
So, the difference of 6 and 3 is 3.
Question 4.
6 – ____ = _____
Answer:
Explanation:
I started with 6
Subtracted 4 cubes
Crossed out 4
So, the difference of 6 and 4 is 2.
Question 5.
7 – ____ = _____
Answer:
Explanation:
I started with 7
Subtracted 1 cube
Crossed out 1
So, the difference of 7 and 1 is 6.
Question 6.
7 – ____ = _____
Answer:
Explanation:
I started with 7
Subtracted 2 cubes
Crossed out 2
So, the difference of 7 and 2 is 5.
Question 7.
7 – ____ = _____
Answer:
Explanation:
I started with 7
Subtracted 3 cubes
Crossed out 3
So, the difference of 7 and 3 is 5.
Question 8.
7 – ____ = _____
Answer:
Explanation:
I started with 7
Subtracted 4 cubes
Crossed out 4
So, the difference of 7 and 4 is 3.
Subtract.
Question 9.
6 – 1 = _____
Answer:
Explanation:
I started with 6
Subtracted 1 cube
Crossed out 1
So, the difference of 6 and 1 is 5.
Question 10.
7 – 4 = ___
Answer:
Explanation:
I started with 7
Subtracted 4 cubes
Crossed out 4
So, the difference of 7 and 4 is 3.
Subtract.
Question 11.
7 – 1 = ___
Answer:
Explanation:
I started with 7
Subtracted 1 cube
Crossed out 1
So, the difference of 7 and 1 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.
6 – 5 = ____
Answer:
Explanation:
I started with 6
Subtracted 5 cube
Crossed out 5
So, the difference of 6 and 5 is 1.
Question 14.
7 – 7 = ____
Answer:
Explanation:
I started with 7
Subtracted 7 cubes
Crossed out 7
So, the difference of 7 and 7 is 0.
Question 15.
Answer:
Explanation:
The difference of 7 and 6 is 1
So, 7 – 6 = 1.
Question 16.
Answer:
Explanation:
The difference of 7 and 0 is 7
So, 7 – 0 = 7.
Question 17.
Answer:
Explanation:
The difference of 6 and 1 is 5
So, 6 – 1 =5.
Question 18.
There are 7 ants on a log. 5 of the ants crawl away. How many ants are left on the log?
____ ants
Answer:
2 ants
Explanation:
There are 7 ants on a log
5 of the ants crawl away
I started with 7
Subtracted 5 cubes
Crossed out 5
The difference of 7 and 5 is 2
So, 2 ants are left on the log.
Test Practice
Question 19.
Ben sees 6 parrots on a branch. 2 of them fly away. How many parrots are left on the branch?
(A) parrots
(B) 2 parrots
(C) 3 parrots
(D) 4 parrots
Answer:
(D) 4 parrots
Explanation:
Ben sees 6 parrots on a branch
2 of them fly away
I started with 6
Subtracted 2 cube
Crossed out 2
The difference of 6 and 2 is 4
So, 4 parrots are left on the branch.
Math at Home Collect a group of 7 objects. Have your child show you how to subtract from 7. Have him or her write a subtraction number sentence.