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10 August, 20:33

Greg says that he can find the sum of 40+53 without rewriting it. Explain how you can solve this problem using mental math.

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Answers (2)
  1. 10 August, 21:15
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    Are there any selections like a, b, c, or d?
  2. 11 August, 00:19
    0
    You can add 40+40=80 then add the 13 left so it's 93
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