3 years ago

Select the proper placement for parentheses to speed up the addition for the expression 4 + 6 + 5

Mathematics

2 answers:

nata0808 [166]3 years ago

6 0

Im guessing that by making 10 it will speed up the addition process so it should be
B since (6+4) = 10 then +5 =15

vlabodo [156]3 years ago

6 0

The answer is B becuase 6+4=10 10+5=15

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