Question

9 - Efetue as operações.
a) 3 - 7 X 3
b) 5 + 2 x 8 =
c) 50- 25 X 2 =
d) 30 + 8 ÷ (-2)
e) 15 = 5
10 -
f) 3 + 6 x 2 15 = (-3) =
g) {4 [2 x (8. 12)] = 2} =
h) {2 + [3 = (10 - 11) + 1] = 2} =​

Answer 1

a) 3 - 7 X 3=18

b) 5 + 2 x 8 =11

c) 50- 25 X 2 =0

d) 30 + 8 ÷ (-2)=(-19)

e) 15 = 5 -10=5

f) 3 + 6 x 2 15 = (-3) =30

g) {4 [2 x (8. 12)] = 2} =242

h) {2 + [3 = (10 - 11) + 1] = 2} = slà