25-10-2015
Mathematics

contestada

What is the value of 1-18 25 if you subtract then add? If you add then subtract?Why is order of operations necessary?

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davidyangnyc davidyangnyc

25-10-2015

1-18+25
if u subtract first the answer would be 8
if u add first it would be 42
the order of operations is necessary otherwise we would get different and wrong answers

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