Question

1 – CALCULE AS EXPRESSÕES:

a) 2 + 8 – 3 – 5 + 15 =

b) 12 + [35 - (10 + 2) +2] =

c) [(18 + 3 · 2) ÷ 8 + 5 · 3] ÷ 6 =

d) 37 + [-25 – (-11 + 19 – 4)] =

e) -8 + {-5 + [(8 – 12) + (13 + 12)] – 10} =

f) 3 – {2 + (11 – 15) – [5 + (-3 + 1)] + 8} =

g) [-1 + (22 – 5 · 6)] ÷ (-5 + 2) + 1 =

h) [ – (2 4 – 8) · 2 – 24] ÷ [2 2 – (-3 + 2)] =

i) {[(8·4 + 3) ÷7 + (3 + 15÷5) ·3] ·2 – (19 – 7) ÷ 6} ·2 + 12

Answer 1

a) 2 + 8 – 3 – 5 + 15 =

25-3-5

25-8

=17

b) 12 + [35 - (10 + 2) +2] =

12+(35-12+2)

12+25

=37