Question

10- Efetue as operações:
a) 3 – 7 × 3 = _________________________________________________________________________________
b) 5 + 2 × 8 =__________________________________________________________________________________
c) 50 – 25 × 2 =________________________________________________________________________________
d) 30 + 8 ÷ (–2) =_______________________________________________________________________________
e) 15 ÷ 5 – 10 =________________________________________________________________________________
f) 3 + 6 × 2 – 15 ÷ (–3) =_________________________________________________________________________
g) {4 – [2 × (8 – 12) ]÷ 2} =_______________________________________________________________________
h) {2 + [3 ÷ (10 – 11) + 1] ÷ 2} =___________________________________________________________________
i) 5 × [ (8 – 5) × (2 + 7) ] = ________________________________________________________________________
j) {[ (8 + 4) ÷ 3] × (3 – 1)} =_______________________________________________________________________

Answer 1

Resposta: a) 3 – 7 × 3 = 18

b) 5 + 2 × 8 = 21

c) 50 – 25 × 2= 100

d) 30 + 8 ÷ (–2) = 26

e) 15 ÷ 5 – 10= -7

f) 3 + 6 × 2 – 15 ÷ (–3) = 20