What is 89+27+11 using a mental math property

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asked May 20, 2018 178k views

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Matty · Answer 1 · 2018-05-25T05:36:59+0000

Everyone works differently in mental math.

Using the property of commutativity, we can (mentally) rearrange to calculate 89+11 + 27
Since 89+11 is exactly 100, the sum is therefore 100+27=127.

What is 89+27+11 using a mental math property

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