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16 May, 05:00

Which expression shows you how you can use mental math to simplify the expression 9x15x2 most easily?

A. (15x9) x2

B. (9x15) x2

C. 2x (9x15)

D. 9x (15x2)

Answers (1)
  1. 16 May, 06:51
    C because mulitiplying 9 would be a bigger number and 2 would be smaller
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