Question

a) [(+ 18) + ( - 6)] + (+ 23) = ?

b) (+ 77) + [(- 1) + ( - 2)] = ?

c) [(– 17) + (+ 3) + (+ 12)] = ?

d) ( - 8) + ( - 6) + ( - 2) + [(+ 1) + ( - 1)] = ?​

Answer 1

Resposta:

a) 35

b) 74

c) -2

d) -16

espero ter ajudado :)