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March 30, 2017

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How do you find 81 - 16 using mental math?

  • subtraction (math) - ,

    I'd round the numbers to 80 - 15

  • subtraction (math) - ,

    Just do the problem in your head, don't use any outside sources like a calculator or a paper/pencil. I would also do like Ms. Sue said - round 81 to 80 and 16 to 15.

  • subtraction (math) - ,

    Your butt plus my bütt ID thesse nuts

  • Al_hade - ,

    Explain it tell how to find 81-16 using mental maht

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