15 + 5 x 2(10-5)=
65
(11 โ 6) + 2(4-2)
9
4-2(2 X 1) =
0
(9 x 2 โ 8) + 10
20
(6 + 30 x 2 โ 1) - 8 x 8=
1
12 + (6x6) รท (1 + 4 x 2) - 3 x 4 =
4
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