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UNIT 7
CHAPTER 28
Lesson 28-4
 
 
 
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CHAPTER 28 EXPLORING 2-DIGIT ADDITION AND SUBTRACTION
Lesson 28-4 Count Back Ones to Subtract
 
 

 Count back to subtract. Use the hundred chart.




8.
9.
10.
11.
12.
13.

  

14.Here is how Julie subtracted.


Tell what she did wrong. Make it right.

  
Your child has been using a hundred chart to subtract.
Activity:  Ask your child to explain how to subtract on the hundred chart.

 

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