Mathematics, 30.11.2020 14:00 tnassan5715
Identify the mathematical property, operation, or idea that justifies each sequence of expressions below. Then find the value of the expression.
a.
7⋅2+4−2(7+3)
7⋅2+4−2(7)−2(3)
7⋅2−7(2)+4−2(3)
b.
6⋅3+3⋅4−8
18+12−8
18−8+12
c.
3^2+5(1−3)+4⋅5+1
3^2+4⋅5+1+5(−2)
9+20+1−10
d.
(8+(−12))+10+2
8+(−12+10+2)
Answers: 3
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