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Comparison Subtraction With Regrouping Base 10 Blocks

Comparison Subtraction With Regrouping Base 10 Blocks. Allan, Huellmantel and Scott. Problem: 46 - 27. Build 46 on the top portion of the Subtraction Mat. How many tens? Record it. How many ones? Record it. How much is that?. 4. 6.

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Comparison Subtraction With Regrouping Base 10 Blocks

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  1. Comparison Subtraction With Regrouping Base 10 Blocks Allan, Huellmantel and Scott

  2. Problem: 46 - 27 Build 46 on the top portion of the Subtraction Mat. How many tens? Record it. How many ones? Record it. How much is that?

  3. 4 6

  4. Build 27 on the center portion of the Subtraction Mat. How many tens? Record it. How many ones? Record it. How much is that?

  5. 4 6 - 2 7

  6. Are there enough ones in the top number to match with the ones in the bottom number? (no) Exchange a ten into ten ones and place them on the ones portion of the mat. Record the exchange.

  7. 1 6 4 6 - 2 7 3

  8. Match the ones on the small sheet..

  9. 3 3 1 6 6 4 4 2 6 6 - 2 7

  10. Pull the ones from the top of the Mat to the bottom and record.

  11. 3 1 6 4 6 - 2 7 9

  12. Match the tens on the small sheet.

  13. 3 1 6 4 6 - 2 7 9

  14. Pull the ten from the top of the Mat to the bottom and record.

  15. 3 1 6 4 6 - 2 7 1 9

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