All the solutions provided in McGraw Hill My Math Grade 1 Answer Key PDF Chapter 2 Lesson 12 Subtract from 10 will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 1 Answer Key Chapter 2 Lesson 12 Subtract from 10
Explore and Explain
Answer:
Explanation:
There are 10 tigers playing in a field
4 tigers go away
I started with 10
Subtracted 4 cubes
Crossed out 4
The difference of 10 and 4 is 6
So, 6 tigers are left.
Teacher Directions: Use to model. There are 10 tigers playing in a field. 4 tigers go away. How many tigers are left? Trace your cubes and mark Xs on the tigers that go away. Write the subtraction number sentence.
See and Show
There are many ways to subtract from 10. Subtract 5 from 10.
10 – 5 = 5 The difference is 5.
Subtract 7 from 10.
10 – 7 = 3 The difference is 3.
Start with 10 Subtract some cubes. Write different ways to subtract from 10.
Subtract from 10
Question 1.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 1 cube
Crossed out 1
So, the difference of 10 and 1 is 9.
Question 2.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 2 cubes
Crossed out 2
So, the difference of 10 and 2 is 8.
Question 3.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 3 cubes
Crossed out 3
So, the difference of 10 and 3 is 7.
Question 4.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 4 cubes
Crossed out 4
So, the difference of 10 and 4 is 6.
Question 5.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 5 cubes
Crossed out 5
So, the difference of 10 and 5 is 5.
Question 6.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 6 cubes
Crossed out 6
So, the difference of 10 and 6 is 4.
Question 7.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 7 cubes
Crossed out 7
So, the difference of 10 and 7 is 3.
Question 8.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 8 cubes
Crossed out 8
So, the difference of 10 and 8 is 2.
Talk Math When would you use subtraction in a real-world situation? Explain.
On My Own
Use Work Mat 3 and Subtract.
Question 9.
10 – 3 = ____
Answer:
Explanation:
I started with 10
Subtracted 3 cubes
Crossed out 3
So, the difference of 10 and 3 is 7.
Question 10.
10 – 1 = _____
Answer:
Explanation:
I started with 10
Subtracted 1 cube
Crossed out 1
So, the difference of 10 and 1 is 9.
Question 11.
9 – 5 = ____
Answer:
Explanation:
I started with 9
Subtracted 5 cubes
Crossed out 5
So, the difference of 9 and 5 is 4.
Question 12.
10 – 2 = ____
Answer:
Explanation:
I started with 10
Subtracted 2 cube
Crossed out 2
So, the difference of 10 and 2 is 8.
Question 13.
10 – 0 = ____
Answer:
Explanation:
I started with 10
Subtracted 0 cube
Crossed out 0
So, the difference of 10 and 0 is 10.
Question 14.
10 – 9 = ____
Answer:
Explanation:
I started with 10
Subtracted 9 cubes
Crossed out 9
So, the difference of 10 and 9 is 1.
Question 15.
6 – 3 = ____
Answer:
Explanation:
I started with 6
Subtracted 3 cubes
Crossed out 3
So, the difference of 6 and 3 is 3.
Question 16.
10 – 4 = ____
Answer:
Explanation:
I started with 10
Subtracted 4 cubes
Crossed out 4
So, the difference of 10 and 4 is 6.
Question 17.
10 – 8 = ____
Answer:
Explanation:
I started with 10
Subtracted 8 cubes
Crossed out 8
So, the difference of 10 and 8 is 2.
Question 18.
7 – 7 = ____
Answer:
Explanation:
I started with 7
Subtracted 7 cubes
Crossed out 7
So, the difference of 7 and 7 is 0.
Question 19.
10 – 7 = ____
Answer:
Explanation:
I started with 10
Subtracted 7 cubes
Crossed out 7
So, the difference of 10 and 7 is 3.
Question 20.
9 – 3 = ____
Answer:
Explanation:
I started with 9
Subtracted 3 cubes
Crossed out 2
So, the difference of 9 and 3 is 6.
Question 21.
Answer:
Explanation:
The difference of 10 and 5 is 5
So, 10 – 5 = 5.
Question 22.
Answer:
Explanation:
The difference of 10 and 2 is 8
So, 10 – 2 = 8.
Question 23.
Answer:
Explanation:
The difference of 4 and 2 is 2
So, 4 – 2 = 2.
Question 24.
Answer:
Explanation:
The difference of 8 and 3 is 5
So, 8 – 3 = 5.
Question 25.
Answer:
Explanation:
The difference of 10 and 6 is 4
So, 10 – 6 = 4.
Question 26.
Answer:
Explanation:
The difference of 10 and 7 is 3
So, 10 – 7 = 3.
Problem Solving
Solve. Use Work Mat 3 and if needed.
Question 27.
Marisa sees 10 flamingos in a lake. 2 of them get out of the lake. How many flamingos are still in the lake?
_____ flamingos
Answer:
8 flamingos
Explanation:
Marisa sees 10 flamingos in a lake
2 of them get out of the lake
I started with 10
Subtracted 2 cubes
Crossed out 2
So, the difference of 10 and 2 is 8.
Question 28.
There are 10 jeeps on a safari. 5 of the jeeps leave. How many jeeps are still on the safari?
____ jeeps
Answer:
Explanation:
There are 10 jeeps on a safari
5 of the jeeps leave
I started with 10
Subtracted 5 cubes
Crossed out 5
The difference of 10 and 5 is 5
So, 5 jeeps are still on the safari.
HOT Problem There are 10 parrots on a branch. 7 of them fly away. The answer is 3 parrots. What is the question?
_______________________
_______________________
_______________________
_______________________
Answer:
There are 10 parrots on a branch. 3 flew away. How many parrots are still on the branch?
McGraw Hill My Math Grade 1 Chapter 2 Lesson 12 My Homework Answer Key
Practice
Write different ways to subtract from 10.
Question 1.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 10 cubes
Crossed out 10
So, the difference of 10 and 10 is 0.
Question 2.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 1 cubes
Crossed out 1
So, the difference of 10 and 1 is 9.
Question 3.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 2 cubes
Crossed out 2
So, the difference of 10 and 2 is 8.
Question 4.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 3 cubes
Crossed out 3
So, the difference of 10 and 3 is 7.
Question 5.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 4 cubes
Crossed out 4
So, the difference of 10 and 4 is 6.
Question 6.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 5 cubes
Crossed out 5
So, the difference of 10 and 5 is 5.
Question 7.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 6 cubes
Crossed out 6
So, the difference of 10 and 6 is 4.
Question 8.
10 – ____ = ____
Answer:
Explanation:
I started with 10
Subtracted 7 cubes
Crossed out 7
So, the difference of 10 and 7 is 3.
Subtract.
Question 9.
9 – 6 = ____
Answer:
Explanation:
I started with 9
Subtracted 6 cubes
Crossed out 6
So, the difference of 9 and 6 is 3.
Question 10.
10 – 4 = ____
Answer:
Explanation:
I started with 10
Subtracted 4 cubes
Crossed out 4
So, the difference of 10 and 4 is 6.
Question 11.
10 – 8 = ____
Answer:
Explanation:
I started with 10
Subtracted 8 cubes
Crossed out 8
So, the difference of 10 and 8 is 2.
Question 12.
10 – 5 = ____
Answer:
Explanation:
I started with 10
Subtracted 5 cubes
Crossed out 5
So, the difference of 10 and 5 is 5.
Question 13.
Answer:
Explanation:
The difference of 10 and 7 is 9
So, 10 – 9 = 1.
Question 14.
Answer:
Explanation:
The difference of 8 and 2 is 6
So, 8 – 2 = 6.
Question 15.
Answer:
Explanation:
The difference of 10 and 0 is 10
So, 10 – 0 = 10.
Question 16.
Chris saw 10 flies sitting on an elephant. 6 of them flew away. How many flies are still sitting on the elephant?
____ flies
Answer:
Explanation:
Chris saw 10 flies sitting on an elephant
6 of them flew away
I started with 10
Subtracted 6 cubes
Crossed out 6
The difference of 10 and 6 is 4
So, 4 flies are still sitting on the elephant.
Test Practice
Question 17.
10 – 2 = _____
(A) 6
(B) 7
(C) 8
(D) 9
Answer:
(C) 8
Explanation:
I started with 10
Subtracted 2 cubes
Crossed out 2
So, the difference of 10 and 2 is 8.
Math at Home Ask your child to use 10 buttons or pennies to show all of the ways they can subtract from 10. Have him or her write a subtraction number sentence to show one of the ways they subtracted from 10.