Question

Resolva as expressões

a)15+[(3×6-2)-(10-6:2)+1]=
b)50-{40-3×[5-(10-7)]}=
c)25-(15+6:3)=​

Answer 1

a) 15 + [(3 × 6 - 2) - (10 - 6 ÷ 2) + 1]

15 + [(18 - 2) - (10 - 3) + 1]

15 + [16 - 7 + 1]

15 + 10

25

b) 50 - {40 - 3 × [5 - (10 - 7)]}

50 - {40 - 3 × [5 - 3]}

50 - {40 - 3 × 2}

50 - {40 - 6}

50 - 34

16

c) 25 - (15 + 6 ÷ 2)

25 - (15 + 3)

25 - 18

7