Mental Math 19

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

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ProblemSolution
(10*2)/4
25*6
12-(9/3)
-15*2
(28-7)/7
55/(4+7)
20*3
2^3
4*9+8
10-(-8)
ProblemSolution
34+28
(2^4)*2
-24+11
-8*6
24-2^3
(73-5)/2
-16+14
55/(5*1)
88+88
(20*5)/-25

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