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UNIT 7 |
CHAPTER 28 |
Lesson 28-5 |
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CHAPTER 28 EXPLORING 2-DIGIT ADDITION AND SUBTRACTION |
Lesson 28-5 Count Back Tens to Subtract |
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Count back to subtract. Use the hundred chart. | |
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14. |  | Continue the patterns. Count back by tens. You can use the hundred chart. 70, 60, 50, 40, _______, _______, _______ 99, 89, 79, _______, _______, _______, _______ |
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Your child has been using a hundred chart to subtract.
Activity: Ask your child to explain how to subtract
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