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Take Away Subtraction With Regrouping Base 10 Blocks Allan and Scott.

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Presentation on theme: "Take Away Subtraction With Regrouping Base 10 Blocks Allan and Scott."— Presentation transcript:

1 Take Away Subtraction With Regrouping Base 10 Blocks Allan and Scott

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3 Problem: Build 32 on the top portion of the Subtraction Mat. How many tens? Record it. How many ones? Record it. How much is that?

4 32

5 Write minus seventeen on the middle portion of the mat.

6 32 -17

7 Is it possible to take away seven ones? (no) Exchange a ten for 10 ones and place them on the ones portion of the mat. Record the exchange.

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9 Remove seven ones and place them below the line on the small sheet.

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11 How many ones left on the Subtraction Mat? (5) Pull them to the bottom portion of the Mat and record.

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13 Remove one of the tens and place it below the line on the small sheet.

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15 How many tens left on the Subtraction Mat? (1) Pull it to the bottom portion of the Mat and record.

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