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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.
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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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