Subtraction with Regrouping

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# Subtraction with Regrouping - PowerPoint PPT Presentation

##### Subtraction with Regrouping

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1. Subtraction with Regrouping Mrs. Hicks -

2. 1. Look at the ones. Ask: “Can we take 3 away from 2?” 8 2 -5 3 If we can’t, then we have to regroup.

3. 2. Regroup as needed. 7 8 2 1st: Go next door to the tens and take one away. 1 2nd: Add the ten to the ones. -5 3

4. 3. Subtract the ones. 7 What is 12 – 3? 8 2 1 -5 3 9

5. 4. Subtract the tens. 7 What is 7 – 5? 8 2 1 -5 3 2 9

6. Now let’s 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.

7. Great Job! Now it’s your turn to prove you’re the math wizard!