We included **H****MH Into Math Grade 1 Answer Key**** PDF** **Module 7 Lesson 1 Represent Difference Unknown Problems with Objects and Drawings** to make students experts in learning maths.

## HMH Into Math Grade 1 Module 7 Lesson 1 Answer Key Represent Difference Unknown Problems with Objects and Drawings

I Can solve addition and subtraction problems to find how many more and how many fewer.

**Spark Your Learning**

How can you solve the problem?

Answer:

Explanation:

Roger has 7 polished rocks

Sarah has 3 rocks

7 – 3 = 4

So, Roger has 4 more than Sarah.

Read the story problem. Roger has 7 polished rocks. Sarah has 3 rocks. How many more rocks does Roger have than Sarah? Hove children use tools and draw to solve the problem.

**Build Understanding**

A. Julian has 6 baseballs. Tony has 10 baseballs. How many more baseballs does Tony have than Julian?

How can you show the problem? Write an equation.

Answer:

Explanation:

Julian has 6 baseballs

Tony has 10 baseballs

6 + 4 = 10, 10 – 6 = 4

So, tony has 4 more baseballs.

B. Carly has 2 tennis balls. Miguel has 8 tennis balls. How many fewer tennis balls does Carly have than Miguel?

How can you show the problem? Write an equation.

Answer:

Explanation:

Carly has 2 tennis balls

Miguel has 8 tennis balls

2 + 6 = 8, 8 – 2 = 6

So, Carly has 6 fewer tennis balls.

**Turn and Talk** How did you decide to use addition or subtraction?

C. Daisy lays 2 eggs. Rosie lays 7 eggs. How many more eggs does Rosie lay than Daisy?

Draw circles to show the problem. Compare.

Answer:

Explanation:

Daisy lays 2 eggs

Rosie lays 7 eggs

2 + 5 = 7, 7 – 2 = 5

So, Rosie lays 5 more eggs than Daisy.

D. This week, Daisy lays 4 eggs. Rosie lays 6 eggs. How many fewer eggs does Daisy lay than Rosie?

Draw circles to show the problem. Compare.

____ fewer eggs

Answer:

Explanation:

Daisy lays 4 eggs

Rosie lays 6 eggs

4 + 2 = 6, 6 – 4 = 2

So, Daisy lay 2 fewer eggs than Rosie.

**Check Understanding Math Board**

Question 1.

Beth has 5 pencils. Anton has 10 pencils. How many more pencils does Anton have than Beth?

Write an equation.

_____________

Anton has ___ more pencils.

Answer:

Explanation:

Beth has 5 pencils

Anton has 10 pencils

Equation: 10 – 5 = 5

So, Anton has 5 more pencils.

**On Your Own**

**Model with Mathematics Use and draw Write an equation.**

Question 2.

Ronald has 3 toys. Marcel has 5 toys. How many fewer toys does Ronald have than Marcel?

Equation: _______

Ronald has ___ fewer toys.

Answer:

Explanation:

Ronald has 3 toys

Marcel has 5 toys

3 + 2 = 5, 5 – 3 = 2

Equation: 5 – 3 = 2

Ronald has 2 fewer toys.

Question 3.

Daren has 3 cards. Marcia has 9 cards. How many more cards does Marcia have than Daren?

Equation: _____

Marcia has ___ more cards.

Answer:

Explanation:

Daren has 3 cards

Marcia has 9 cards

3 + 6 = 9, 9 – 3 = 6

Equation: 9 – 3 = 6

Marcia has 6 more cards.

Question 4.

How many more blue circles are there than green circles?

Equation: ____

There are ___ more blue circles.

Answer:

Equation: 7 – 5 = 2

There are 2 more blue circles

Explanation:

There are 5 green circles

There are 7 blue circles

5 + 2 = 7, 7 – 5 = 2

There are 2 more blue circles.

**I’m in a Learning Mindset!**

Did using objects help me understand the problem? How?