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6 + （ ） = 10

6. 5. □. □. 4. 4. 1. 2. 4. 6 + （ ） = 10. 6 + 4 + 2 = □. 12. 6 加 几. □. □. □. 4. 1. 6 + 5 = □. 6 + 6 = □. 11. 12. 1. 4. 2. □. 10. 10. 怎样想能很快说出得数？. 2. 6 + 8 = □. 6 + 7 = □. 6 + 9 = □. 因为 8 + 6 = 14. 因为 7 + 6 = 13. 因为 9 + 6 = 15. 所以 6 + 8 = 14.

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6 + （ ） = 10

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  1. 6 5 □ □ 4 4 1 2 4 6 +（ ）= 10 6 + 4 + 2 = □ 12

  2. 6 加 几

  3. □ □ □ 4 1 6 + 5 = □ 6 + 6 = □ 11 12 1 4 2 □ 10 10

  4. 怎样想能很快说出得数？ 2 6 + 8 = □ 6 + 7 = □ 6 + 9 = □ 因为8 + 6 = 14 因为7 + 6 = 13 因为9 + 6 = 15 所以6 + 8 = 14 所以6 + 7 = 13 所以6 + 9 = 15

  5. 做一做 1. 6 + 5 = 11 6 + 7 = 13 2. 6 + 4 = 10 6 + 5 = 11 6 + 6 = 12 13 15 6 + 7 = 6 + 8 = 14 6 + 9 = 3. 14 15 8 + 6 = 9 + 6 = 7 + 6 = 13 13 6 + 7 = 6 + 8 = 14 6 + 9 = 15

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