We included HMH Into Math Grade 1 Answer Key PDF Module 7 Lesson 5 Represent Bigger Unknown and Smaller Unknown Problems with a Visual Model to make students experts in learning maths.
HMH Into Math Grade 1 Module 7 Lesson 5 Answer Key Represent Bigger Unknown and Smaller Unknown Problems with a Visual Model
I Can use visual models and write equations to show bigger and smaller unknowns.
Spark Your Learning
How can you show a way to solve the problem?
Answer:
Explanation:
In the aquarium. there are 7 more fish than plants
There are 16 fish
The subtraction equation that solves the problem is
16 – 7 = 9
There are 9 plants in the aquarium.
Read the problem. In the aquarium. there are 7 more fish than plants. There are 16 fish. How many plants are in the aquarium? Have children use tools to show the problem.
Build Understanding
A. Liz has 6 model airplanes. Serge has 5 more model airplanes than Liz. How many model airplanes does Serge have?
How can you draw to show the problem?
Answer:
B. Use the bar model to show the problem another way.
Equation: ____
Serge has ___ model airplanes.
Answer:
Explanation:
Liz has 6 model airplanes
Serge has 5 more model airplanes than Liz
The addition equation that helps to solve the problem is
6 + 5 = 11
So, Serge has 11 model airplanes.
Turn and Talk How does using tools help you understand the bar model?
Step It Out
1. Theresa has 13 books. Marnie has 9 fewer books than Theresa. How many books does Marnie have?
A. Label each bar.
B. Write the number of books Theresa has.
C. Write how many fewer books Mamie has.
D. Marnie has ___ books. Equation: ___
Answer:
Explanation:
Theresa has 13 books
Marnie has 9 fewer books than Theresa
The subtraction equation that solve the problem is
13 – 9 = 4
So, Marine has 4 books.
2. Ralph has 6 more apples than Alice. Ralph has 15 apples. How many apples does Alice have?
A. Label each bar.
B. Write the number of apples Ralph has.
C. Write how many more apples Ralph has.
D. Alice has ___ apples. Equation: ___
Answer:
Explanation:
Ralph has 6 more apples than Alice.
Ralph has 15 apples
The subtraction equation that solve the problem is
15 – 6 = 9
So, Alice has 9 apples.
Step It Out
3. Ricky has 9 seashells. Ricky has 5 fewer seashells than Mort. How many seashells does Mort have?
A. Write the name to label each bar.
B. Write the number of seashells Ricky has.
C. Write how many fewer seashells Ricky has.
D. Write an equation to model the problem.
E. Write the number of seashells Mort has in the bar model.
Equation: _____
Mort has ___ seashells.
Answer:
Explanation:
Ricky has 9 seashells
Ricky has 5 fewer seashells than Mort
The addition equation that solve the problem is
9 + 5 = 14
So, Mort has 14 seashells.
Check Understanding Math Board
Complete the bar model. Write an equation.
Question 1.
There are 17 blue cubes. There are 9 fewer red cubes than blue cubes. How many red cubes are there?
Equation: ____
There are ___ red cubes.
Answer:
Explanation:
There are 17 blue cubes
There are 9 fewer red cubes than blue cubes
The subtraction equation that solve the problem is
17 – 9 = 8
So, there are 8 red cubes.
On Your Own
Reason Complete the bar model. Write an equation.
Question 2.
August collects 5 stones. Sylvia collects 6 more stones than August. How many stones does Sylvia collect?
Equation: ___
Sylvia collects ___ stones.
Answer:
Explanation:
August collects 5 stones
Sylvia collects 6 more stones than August
The addition equation that solve the problem is
5 + 6 = 11
So, Sylvia collects 11 stones.
Question 3.
There are 3 oranges.
There are 6 fewer oranges than apples. How many apples are there?
Equation: ____
There are ___ apples.
Answer:
Explanation:
There are 3 oranges.
There are 6 fewer oranges than apples
The addition equation that solve the problem is
3 + 6 = 9
So, There are 9 apples.
Question 4.
Christina has 6 pencils. Christina has 2 more pencils than Alison. How many pencils does Alison have?
Equation: ____
Alison has ___ pencils.
Answer:
Explanation:
Christina has 6 pencils
Christina has 2 more pencils than Alison
The subtraction equation that solve the problem is
6 – 2 = 4
So, Alison has 4 pencils.
On Your Own
Reason Complete the bar model. Write an equation.
Question 5.
There are 6 green crayons. There are 7 more yellow crayons than green crayons. How many yellow crayons are there?
Equation: ____
There are ___ yellow crayons.
Answer:
Explanation:
There are 6 green crayons
There are 7 more yellow crayons than green crayons
The addition equation that solve the problem is
6 + 7 = 13
So, there are 13 yellow crayons.
Question 6.
Open Ended Grade names 16 animals that have lungs. Lucas names fewer animals than Grade. How many animals could Lucas name? How many fewer does he name than Grade?
_______
Equation: ___
Lucas names ___ animals.
Lucas names ___ fewer animals.
Answer:
Explanation:
Grade names 16 animals that have lungs
Lucas names fewer animals than Grade
Grade could have names 16 animals and Lucas could have named 8 animals
So, Lucas named 8 fewer animals than Grade.
I’m in a Learning Mindset!
Who should I talk with to learn more about how to solve word problems? What questions can I ask?