rhiyajb07
rhiyajb07
23-08-2017
Mathematics
contestada
what is 89+27+11 using a mental math property
Respuesta :
mathmate
mathmate
23-08-2017
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.
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