Mental Math 4

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Can you name the answer by doing it in your head?

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ProblemSolution
16+84
80*2/4
-4*9*2
.15*5
1.5*3
-12*6
30+8-44
2*4*-.5
-12*-8
9^2+6
ProblemSolution
(-3/2)*9
32+42+100
-12-8-10
(45+45)/30
12*1/3
28+35
-100+(7*11)
0.5*(0-1)^2
90-47+(2*5)
24*4

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