All the solutions provided in McGraw Hill My Math Grade 1 Answer Key PDF Chapter 2 Lesson 10 Subtract from 8 will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 1 Answer Key Chapter 2 Lesson 10 Subtract from 8
Explore and Explain
Answer:
Teacher Directions: Use to model. 8 koalas are on a tree. 6 of the koalas climb away. How many koalas are still on the tree? Trace your cubes and mark Xs on the number of koalas that climb away. Write the subtraction number sentence.
See and Show
There are many ways to subtract from 8. Subtract 4 from 8.
8 – 4 = 4
The difference is 4.
Subtract 6 from 8.
8 – 6 = 2
The difference is 2.
Start with 8 Subtract some cubes. Write different ways to subtract from 8.
Subtract from 8
Question 1.
8 – ___ = ____
Answer:
Explanation:
I started with 8
Subtracted 1 cube
Crossed out 1
So, the difference of 8 and 1 is 7.
Question 2.
8 – ___ = ____
Answer:
Explanation:
I started with 8
Subtracted 2 cubes
Crossed out 2
So, the difference of 8 and 2 is 6.
Question 3.
8 – ___ = ____
Answer:
Explanation:
I started with 8
Subtracted 3 cubes
Crossed out 3
So, the difference of 8 and 3 is 5.
Question 4.
8 – ___ = ____
Answer:
Explanation:
I started with 8
Subtracted 4 cubes
Crossed out 4
So, the difference of 8 and 4 is 4.
Question 5.
8 – ___ = ____
Answer:
Explanation:
I started with 8
Subtracted 5 cubes
Crossed out 5
So, the difference of 8 and 5 is 3.
Question 6.
8 – ___ = ____
Answer:
Explanation:
I started with 8
Subtracted 6 cubes
Crossed out 6
So, the difference of 8 and 6 is 2.
Talk Math How do you know 8 – 5 = 3? Explain.
Answer:
I started with 8
Subtracted 5 cubes
Crossed out 5
So, the difference of 8 and 5 is 3.
On My Own
Use Work Mat 3 and Subtract.
Question 7.
7 – 3 = ___
Answer:
Explanation:
I started with 7
Subtracted 3 cubes
Crossed out 3
So, the difference of 7 and 3 is 5.
Question 8.
8 – 5 = ___
Answer:
3
Explanation:
I started with 8
Subtracted 5 cubes
Crossed out 5
So, the difference of 8 and 5 is 3.
Question 9.
8 – 1 = ____
Answer:
Explanation:
I started with 8
Subtracted 1 cube
Crossed out 1
So, the difference of 8 and 1 is 7.
Question 10.
8 – 7 = ____
Answer:
Explanation:
I started with 8
Subtracted 7 cubes
Crossed out 7
So, the difference of 8 and 7 is 1.
Question 11.
8 – 0 = ___
Answer:
Explanation:
I started with 8
Subtracted 0
The difference of any number subtracted by 0 is the number itself
So, the difference of 8 and 0 is 8.
Question 12.
8 – 6 = ____
Answer:
Explanation:
I started with 8
Subtracted 6 cubes
Crossed out 6
So, the difference of 8 and 6 is 2.
Question 13.
8 – 2 = ___
Answer:
Explanation:
I started with 8
Subtracted 2 cubes
Crossed out 2
So, the difference of 8 and 2 is 6.
Question 14.
8 – 4 = __
Answer:
Explanation:
I started with 8
Subtracted 4 cubes
Crossed out 4
So, the difference of 8 and 4 is 4.
Question 15.
8 – 8 = ___
Answer:
Explanation:
I started with 8
Subtracted 8 cubes
Crossed out 8
So, the difference of 8 and 8 is 0.
Question 16.
5 – 4 = ___
Answer:
Explanation:
I started with 5
Subtracted 4 cubes
Crossed out 4
So, the difference of 5 and 4 is 1.
Question 17.
Answer:
Explanation:
The difference of 8 and 6 is 2
So, 8 – 6 = 2.
Question 18.
Answer:
Explanation:
The difference of 6 and 2 is 4
So, 6 – 2 = 4.
Question 19.
Answer:
Explanation:
The difference of 7 and 6 is 1
So, 7 – 6 = 1.
Question 20.
Answer:
Explanation:
The difference of 8 and 0 is 8
So, 8 – 0 = 8.
Question 21.
Answer:
Explanation:
The difference of 6 and 5 is 1
So, 6 – 5 = 1.
Question 22.
Answer:
Explanation:
The difference of 8 and 3 is 5
So, 8 – 3 = 5.
Problem Solving
Write a subtraction number sentence to solve.
Question 23.
There are 8 giraffes drinking water. 3 giraffes go away. How many giraffes are left drinking water?
____ – ____ = ____ giraffes
Answer:
8 – 3 = 5 giraffes
Explanation:
There are 8 giraffes drinking water
3 giraffes go away
I started with 8
Subtracted 3 cubes
Crossed out 3
So, the difference of 8 and 3 is 5.
Question 24.
There are 6 wolves playing in a field. 2 wolves run away. How many wolves are left in the field?
_____ – ____ = ____ wolves
Answer:
6 – 2 = 4 wolves
Explanation:
There are 6 wolves playing in a field
2 wolves run away
I started with 6
Subtracted 2 cubes
Crossed out 2
The difference of 6 and 2 is 4
So, 4 wolves are left in the field.
HOT Problem Nia wrote this subtraction number sentence. Tell why Nia is wrong. Make it right.
_________________________________
_________________________________
_________________________________
_________________________________
Answer:
Nia is wrong, 8 – 5 = 3
Explanation:
I started with 8
Subtracted 5 cubes
Crossed out 5
So, the difference of 8 and 5 is 3.
McGraw Hill My Math Grade 1 Chapter 2 Lesson 10 My Homework Answer Key
Practice
Write different ways to subtract from 8.
Question 1.
8 – ____ = ____
Answer:
Explanation:
I started with 8
Subtracted 1 cube
Crossed out 1
So, the difference of 8 and 1 is 7.
Question 2.
8 – ____ = ____
Answer:
Explanation:
I started with 8
Subtracted 2 cubes
Crossed out 2
So, the difference of 8 and 2 is 6.
Question 3.
8 – ____ = ____
Answer:
Explanation:
I started with 8
Subtracted 3 cubes
Crossed out 3
So, the difference of 8 and 3 is 5.
Question 4.
8 – ____ = ____
Answer:
Explanation:
I started with 8
Subtracted 4 cubes
Crossed out 4
So, the difference of 8 and 4 is 4.
Question 5.
8 – ____ = ____
Answer:
Explanation:
I started with 8
Subtracted 5 cubes
Crossed out 5
So, the difference of 8 and 5 is 3.
Question 6.
8 – ____ = ____
Answer:
Explanation:
I started with 8
Subtracted 6 cubes
Crossed out 6
So, the difference of 8 and 6 is 2.
Question 7.
8 – ____ = ____
Answer:
Explanation:
I started with 8
Subtracted 7 cubes
Crossed out 7
So, the difference of 8 and 7 is 1.
Question 8.
8 – ____ = ____
Answer:
Explanation:
I started with 8
Subtracted 8 cubes
Crossed out 8
So, the difference of 8 and 8 is 0.
Subtract.
Question 9.
8 – 3 = _____
Answer:
Explanation:
I started with 8
Subtracted 3 cubes
Crossed out 3
So, the difference of 8 and 3 is 5.
Question 10.
8 – 4 = ____
Answer:
Explanation:
I started with 8
Subtracted 4 cubes
Crossed out 4
So, the difference of 8 and 4 is 4.
Subtract.
Question 11.
8 – 2 = ____
Answer:
Explanation:
I started with 8
Subtracted 2 cubes
Crossed out 2
So, the difference of 8 and 2 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.
8 – 7 = ____
Answer:
Explanation:
I started with 8
Subtracted 7 cubes
Crossed out 7
So, the difference of 8 and 7 is 1.
Question 14.
5 – 5 = ____
Answer:
Explanation:
I started with 5
Subtracted 5 cubes
Crossed out 5
So, the difference of 5 and 5 is 0.
Question 15.
Answer:
Explanation:
The difference of 6 and 3 is 3
So, 6 – 3 = 3.
Question 16.
Answer:
Explanation:
The difference of 7 and 5 is 2
So, 7 – 5 = 2.
Question 17.
Answer:
Explanation:
The difference of 8 and 8 is 0
So, 8 – 8 = 0.
Question 18.
Shaun has 8 zebra stickers. He gives his friend 3 of them. How many stickers does Shaun have left?
___ stickers
Answer:
5 stickers
Explanation:
Shaun has 8 zebra stickers
He gives his friend 3 of them
I started with 8
Subtracted 3 cubes
Crossed out 3
So, the difference of 8 and 3 is 5.
Test Practice
Question 19.
There are 8 rhinos getting a drink. 6 of the rhinos walk away. How many rhinos are still getting a drink?
(A) 0 rhinos
(B) 2 rhinos
(C) 6 rhinos
(D) 14 rhinos
Answer:
(B) 2 rhinos
Explanation:
There are 8 rhinos getting a drink
6 of the rhinos walk away
I started with 8
Subtracted 6 cubes
Crossed out 6
So, the difference of 8 and 6 is 2.
Math at Home Collect a group of 8 objects. Have your child show you all of the numbers you can subtract from 8. Have him or her write each subtraction number sentence.