We included HMH Into Math Grade 1 Answer Key PDF Module 2 Lesson 5 Use 10 to Subtract to make students experts in learning maths.
HMH Into Math Grade 1 Module 2 Lesson 5 Answer Key Use 10 to Subtract
I Can make a ten to solve a subtraction problem.
Spark Your Learning
How can you make 10?
Answer:
Explanation:
I tossed a number cube and got the number 6
I need 4 more to make 10
6 + 4 = 10.
Have each pair toss a number cube and record the result in the table above. How many more to make 10? Have children record the number they would add to the number tossed to make 10 and show their thinking using the ten frame.
Build Understanding
Josiah has 14 pages to read for homework. He reads 9 of the pages. How many pages does he have to read now?
A. How can you use 
and ten frames to show the problem?
Answer:
B. How can you write an equation to show the problem?
___ – ___ = ____
C. Josiah has ___ pages to read now.
Explanation:
Josiah has 14 pages to read for homework
He reads 9 of the pages
Think: What number added to 9 makes 14?
Count 5 more to make 14
I counted 5 more from 9 to get 14
So, 14 – 9 = 5
Therefore, Josiah has 5 pages to read now.
Turn and Talk How did you use the ten frames to solve this problem?
Step It Out
1. Nora has 12 rocks. 9 are in a box. The rest of them are in her pocket. How many rocks are in her pocket? Use ten frames to subtract 12 – 9.
A. 9 is close to 10. So, start with 9.
Draw 
to make a ten.
THINK: Count ___ more to fill a ten frame.
B. Draw more 
above. Count more to make 12.
THINK: What number added to 10 makes 12?
Count ___ more to make 12.
C. How many more did you count from 9 to get to 12? ___
D. So, 12 – 9 = ___.
E. ___ rocks are in her pocket.
Answer:
Explanation:
Nora has 12 rocks. 9 are in a box
The rest of them are in her pocket
Think: What number added to 10 makes 12?
Count 2 more to make 12
I counted 3 more from 9 to get 12
So, 12 – 9 = 3
Therefore, 3 rocks are in her pocket.
Turn and Talk How does counting more from 9 help you solve the problem?
Step It Out
2. Make a ten to subtract 13 – 4.
A. 4 is not close to 10. So, start with 13. What number do you subtract to make a ten? ____
B. Subtract 4 in all. So, Subtract ___ more.
C.
D. So, 13 – 4 = ___
Answer:
Explanation:
13 – 3 – 1 =
10 – 1 = 9
So, 13 – 4 = 9.
Check Understanding math Board
Make a ten to subtract. Draw 
to show your work.
Question 1.
There are 16 flowers in the garden. 9 are red. The rest are yellow. How many flowers are yellow?
____ – ___ = ___
There are ____ yellow flowers.
Answer:
Explanation:
There are 16 flowers in the garden. 9 are red
The rest are yellow
16 – 9 =
16 – 6 – 3
10 – 3 = 7
So, 16 – 9 = 7
Therefore, there are 7 yellow flowers.
On Your Own
Question 2.
Use Tools Sadie has 11 apples. 6 are green. The rest are red. How many apples are red?
Use 
and ten frames to solve. Draw to show your work.
____ apples are red.
Answer:
Explanation:
Sadie has 11 apples
6 are green
The rest are red
11 – 6 =
11 – 1 – 5
10 – 5 = 5
So, 11 – 6 = 5
Therefore, there are 5 red apples.
Question 3.
Construct Arguments How can you make a ten to subtract 15 – 9?
_____________________
Answer:
15 – 9 =
15 – 5 – 4
10 – 4 = 6
So, 15 – 9 = 6.
Make a ten to subtract.
Draw 
to show your work.
Question 4.
What is 17 – 8?
17 – 8 = ___
Answer:
Explanation:
17 – 8 =
17 – 7 – 1
10 – 1 = 9
So, 17 – 8 = 9.
On Your Own
Make a ten to subtract.
Question 5.
Graham picks 12 tomatoes. He gives 5 tomatoes to his sister. How many tomatoes does he have now?
Graham has ___ tomatoes now.
Answer:
Explanation:
Graham picks 12 tomatoes
He gives 5 tomatoes to his sister
12 – 5 =
12 – 2 – 3 =
10 – 3 = 8
So, 12 – 5 = 8
Therefore, Graham has 8 tomatoes now.
Make a ten to subtract. Draw to show your work.
Question 6.
What is 13 – 8?
13 – 8 = ___
Answer:
Explanation:
13 – 8 =
13 – 3 – 5
10 – 5 = 5
So, 13 – 8 = 5.
I’m in a Learning Mindset!
What tools can I use to solve problem 5? Explain.
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