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UNIT 5
CHAPTER 18
Lesson 18-2
 
 
 
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CHAPTER 18 SUBTRACTION STRATEGIES AND FACTS TO 18
Lesson 18-2 Use Doubles to Subtract
 
 

 Add or subtract. Then draw a line to match the related facts.







  
Patterns
  
13.Draw the missing dots to make a double.
Then write the related fact.



_______ + _______ = _______
_______ - _______ = _______

  
Your child used doubles to subtract.
Activity:  Write several subtraction facts such as , on separate cards. Ask your child to write the doubles fact that helps solve the problem. Have your child use stacks of pennies to show the facts.

 

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