Question

3) Efetue:
(A) - 20 + 7 + 11 =
(B) -15 - 5 - 7 =
(C) 14 + 29 - 11 - 16 =
(D) 29 + 33 - 72 =
(E) 35 - 100 - 101 + 182 =
(F) 26 - 42 + 17 + 25 - 26 =

Answer 1

Resposta:

$a) - 20 + 7 + 11 =-20+18=-2\\b) -15 - 5 - 7 =-20-7=-27\\c) 14 + 29 - 11 - 16 = 43 -27 = 16\\d) 29 + 33 - 72 = 62-72 = -10\\e) 35 - 100 - 101 + 182 = -65 +81 = 16 \\f) 26 - 42 + 17 + 25 - 26 = -16 +42 -26 = 42 -42 = 0$