# Into Math Grade 1 Module 5 Lesson 3 Answer Key Represent Start Unknown Problems with Objects and Drawings

We included HMH Into Math Grade 1 Answer Key PDF Module 5 Lesson 3 Represent Start Unknown Problems with Objects and Drawings to make students experts in learning maths.

## HMH Into Math Grade 1 Module 5 Lesson 3 Answer Key Represent Start Unknown Problems with Objects and Drawings

I Can add or subtract to solve word problems when the start is unknown and represent the problem with objects, drawings, and equations.

How would you solve the problem?

Explanation:
Ming has some books
She gets 6 more books
Now she has 15 books
To find the number of books she started with Subtract 6 from 15
15 – 6 = 9
So, Ming started with 9 books.

Read the problem to children. Ming has some books. She gets 6 more books. Now she has 15 books. How many books did Ming have to start? Hove children choose tools to solve the problem. Hove them draw to show their thinking.

Build Understanding

Will has some grapes. He gives 8 grapes to Tia. Now he has 6 grapes. How many grapes did Will have to start?
A. How can you show this problem?

B. Will had __ grapes to start.
C. How does this equation match the problem?
6 = – 8

Explanation:
Will has some grapes
He gives 8 grapes to Tia
Now he has 6 grapes
To find the number of grapes Will started with add 6 and 8
6 + 8 = 14
Therefore, Will had 14 grapes to start
The equation that matches with the problem is 6 = 14 – 8.

Tim has some juice boxes. He gets 3 more juice boxes. Now Tim has I I juice boxes. How many juice boxes did Tim have to start?

A. Show the problem.

B. Write an addition equation to match the problem.
Equation: ______
C. Write a subtraction equation to solve the problem.
Equation: ___
D. Tim had ___ juice boxes to start.

Explanation:
Tim has some juice boxes
He gets 3 more juice boxes
Now Tim has I I juice boxes
To find the number of juice boxes Tim started with subtract 3 from 11
11 – 3 = 8
So, Tim had 8 juice boxes to start
The equation that matches with the problem is 8 +3 = 11
The subtraction equation i used to solve the problem is 110 – 3 = 8.

Turn and Talk What is another way you can solve this problem?

Check Understanding Math Board

Question 1.
Gage has some blocks. He gives 7 blocks to Naya. Now he has 5 blocks. How many blocks did he have to start?
____ blocks
12 blocks

Explanation:
Gage has some blocks
He gives 7 blocks to Naya
Now he has 5 blocks
To find the number of blocks he has started
7 + 5= 12
So, Gage have 12 blocks to start.

Solve.

Question 2.
Reason Sarah has some stickers. She gets 9 stickers from a friend. Now she has 15 stickers. How many stickers did she have to start? Draw to show your thinking.
____ stickers

Explanation:
Sarah has some stickers
She gets 9 stickers from a friend
Now she has 15 stickers
To find the number of stickers Sarah started with subtract 9 from 15
15 -9 = 6
Therefore, Sarah started with 6 stickers.

Question 3.
Model with Mathematics Max has some plants. He gives 4 plants to Bryce. Now he has 9 plants. How many plants did he have to start?
Equation: ____
___ plants
13 plants

Explanation:
Max has some plants
He gives 4 plants to Bryce
Now he has 9 plants
To find the number of plants Max had to start add 9 and 4
9 + 4 = 13
The equation that matches with the problem is 13 -4 = 9
Therefore, Max has 13 plants to start.

Question 4.
17 – 8 = ___
17 – 8 = 9

Explanation:
Subtract 8 from 17
17 – 8 = 9
Therefore, the difference of 17 and 8 is 9
So, 17 – 8 = 9.

Question 5.
11 – 5 = ___
11 – 5 = 6

Explanation:
Subtract 5 from 11
11- 5 = 6
Therefore, the difference of 11 and 5 is 6
So, 11 – 5 = 6.

Question 6.
___ + 7 = 16
9 + 7 = 16

Explanation:
Subtract 7 from 16
16 – 7 = 9
Therefore, the difference of 16 and 7 is 9
So, 9 + 7 = 16.

I’m in a Learning Mindset!

What tools can I use to solve problem 2?

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