Question

A) {-27+[-13-(-5-4)+1]-8}=
B) {-16-[15+(+18-7)-6]-27]=
C) {+13+[-17-(-15+4)] -7}=
D) {-16-[-12+(-4-9)-7]-13}=
E) {+37-[-48+(-15-6)]+29}=
Por favor me ajudem preciso das contas dessas expressões
Obrigado​

Answer 1

Resposta:

a) 20+[-15-(-5 -8)]

20+[-15-(-13)]

20+[-15+13]

20+(-2)

20-2 = 18

b)15-(13+11)-[12-(8-3)]

15-(24)-[12-(5)]

15-24 -7= 15-31= - 16

c){[15-23+10] -(30-42)} +(-6)

{[2]-(-12)} -6

{2+12} -6

14-6 =8

d) {10-[5+(-8-3)]-2+(7-9)} +5

{10-[ 5+(-11)]-2+(-2)}+5

{10-[5-11]-2-2}+5

{10-(-6)-4}+5

{10+6-4}+5

{10+2}+5

12+5 = 17

e)(-12):4 + 3×(-5)

-3+ (-15) = -3-15= -18