We included HMH 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?