Question

Calcule: a) {2+4-(8-8-3)} b) {-4-2.[3+8-8]-3} c) {-3+3-[4+8-3]-4-5} d) {-8+5-3.(4+8-3)-8-5}

Answer 1

a) {2+4-(8-8-3)}= {2+4-(-3)}= {2+4+3}= 9

b) {-4-2.[3+8-8]-3}= {-4-2.(3)-3}= {-4-6-3}= -13

c) {-3+3-{4+8-3}-4-5}= {-3+3-(9)-4-5}= {-3+3-9-4-5}= -18

d) {-8+5-3.(4+8-3)-8-5}= {-8+5-3.(9)-8-5}= {-8+5-27-8-5} =-27

Answer 2

Resposta:

A) {2+4-(8-8-3)}= {2+4-(-3)}= {2+4+3}= 9

B) {-4-2.[3+8-8]-3}= {-4-2.(3)-3}= {-4-6-3}= -13

C) {-3+3-{4+8-3}-4-5}= {-3+3-(9)-4-5}= {-3+3-9-4-5}= -18

D) {-8+5-3.(4+8-3)-8-5}= {-8+5-3.(9)-8-5}= {-8+5-27-8-5} =-27

o passo-a-passo: