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UNIT 3
CHAPTER 10
Lesson 10-6
 
 
 
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CHAPTER 10 SUBTRACTION STRATEGIES
Lesson 10-6 ALGEBRA: PROBLEM SOLVING: STRATEGY Write a Number Sentence
 
 

  
Problem Solving Strategy
  
Name ___________________________

Write a Number Sentence
  
Algebra
  



You can write a number sentence to help you solve problems.

8 boys ride scooters.

2 boys leave.

How many boys are left?

  
What do I know? _______ boys on scooters _______ boys leave

What do I need to find? _______

  
I need to subtract to find how many boys are left. I can write a number sentence.

  
I can carry out my plan. _______ - _______ = _______ boys

The number sentence shows the number of boys left. _______ boys left

  
Does my answer make sense?

Yes

No

How do I know? _______

 

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