a) 14 - 24:3+6:2 =
b) 30-(-2) (-10)+(-5) (-2) =
c) (4-8): 2-(9-12): 3 =
d) (-3) [(+7)+(-2)] =
e) (6-2-10) (5 - 11) =
0) (+5).[(-3)+(-7)​