Which correctly gives the expression using addition? –18.6 – 31.5 a. –18.6+31.5 b. 18.6+31.5 c. 18.6+(–31.5) d. –18.6+(–31.5)

asked Jan 4, 2016 211k views

3 votes

Which correctly gives the expression using addition? –18.6 – 31.5

a. –18.6+31.5
b. 18.6+31.5
c. 18.6+(–31.5)
d. –18.6+(–31.5)

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3 votes

D because a negative plus a negative is the same as a negative minus an integer due to multiplication

Thumper answered Jan 10, 2016

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