#412621

Anonymous
Quote:
So what do you do when you want to divide, you break up the number as well  :D

Nope – no easy shortcuts for 81 / 9.  Would still use the power of 2, though.  81 / 3(^2) is 81 / 3 = 27, 27/3 = 9.  Samething as memorizing 81 / 9 = 9.

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