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Select the proper placement for parentheses to speed up the addition for the expression 4 + 6 + 5

A. (4 + 6) + 5

B. (5 + 4) + 6

C. 4 + (6 + 5)

D. (5 + 6) + 4

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1 Answer

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by Expert (35.3k points)
The proper placement for parentheses to speed up the addition for the expression 4 + 6 + 5 is (4 + 6) + 5.

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