Subtraction with Regrouping PowerPoint PPT Presentation

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Title: Subtraction with Regrouping


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Subtraction with Regrouping
-
  • Mrs. Hicks

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1. Look at the ones.
  • Ask
  • Can we take 3 away from 2?

8 2
-5 3
If we cant, then we have to regroup.
3
2. Regroup as needed.
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8 2
1st Go next door to the tens and take one
away.
1
2nd Add the ten to the ones.
-5 3
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3. Subtract the ones.
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What is 12 3?
8 2
1
-5 3
9
5
4. Subtract the tens.
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What is 7 5?
8 2
1
-5 3
9
2
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Now lets review the steps
  • Look at the ones.
  • Ask Can we subtract?
  • Regroup as needed
  • 1. Go to the tens and take one away.
  • 2. Add the ten to the ones.
  • Subtract the ones.
  • Subtract the tens.

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Great Job!
Now its your turn to prove youre the math
wizard!
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