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09-07-2018
Mathematics

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Which expression shows you how you can use mental math to simplify the expression (53 + 23) + 7 most easily?
53 + (23 + 7)(23 + 53) + 77+ (23 + 53)7+ (53 + 23)

Respuesta :

09-07-2018

It's easiest to add 23 and 7 first.

(53 + 23) + 7 = 53 + (23 + 7)

First choice.

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