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OpenStudy (anonymous):
Which property would allow you to use mental computation to simplify the problem 27 + 15 + 3 + 5?
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OpenStudy (anonymous):
i think they want you to say that if you add \(27+3\) you get \(30\) and hten \(15+5=20\) so the answer is \(50\) even without your calculator that is the the commutative law
OpenStudy (unklerhaukus):
The commutative property of addition states: you can add the terms in the sum in any order.
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