Question

4) Calcule:
a) 20 - ( -6 ) +8 - ( -1 + 3 ) =
b) (− 6) . (− 3) . (− 1) . (− 10) . (− 2) =

Answer 1

a) 20 + 6 + 8 + 1 + 3 = 38

b) 18 . 10 . -2 = 180 . -2 = -260