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3rd grade

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My daughter has a math problems that reads. Steve's birthday is between May 9 and May 23. The date of his birthday is not anodd number. The sum of the digits is 9. When is Steve's birthday?

  • 3rd grade -

    His birthday must be:
    10, 12, 14, 16, 18, 20, or 22

    It can't be the 10th because 1 + 0 = 1
    It can't be the 12th because 1 + 2 = 3

    Let's see if she can figure this problem out from here.

  • 3rd grade -

    even number? adding to nine?

    well, even means the last digit is 0, 2, 4, 6, 8,

    between 9th and 23, so the first digit is 1 or 2.

    How can you get 1 or 2 added to one of the even digits to make 9?

  • 3rd grade -

    ANSWER= 9 His birthday must be:
    9,11, 13, 15, 17, 19, 21, or 23 SO 9

  • 3rd grade -

    The answer is actually May 18. 18 is between 9 and 23, it is not an odd number and 1+8=9

  • 3rd grade -

    Ansa is may 18

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