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A book publisher is shipping a new book in boxes of 200. If 30 boxes fit in 1 shipping crate, how many books are in 20 shipping crates? Explain the mental math you used to solve the problem.

  • math -

    200 * 30 * 20

    2 * 3 * 2 = 12

    Add 4 zeroes

  • math -

    12

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