Question

Calcule as expressões:
a){3+2•[40-(32-7)-10]}²
b)10:{2+[(4+23)-24]}•3
c)2²•[50+(36+9-4)-(60-14)]:5
d)5+(3•6+2•3•5)-24​

Answer 1

a) {3 + 2 × [40 - (32 - 7) - 10]}²

{3 + 2 × [40 - 25 - 10]}²

{3 + 2 × 5)²

{3 + 10}²

13²

169

b) 10 ÷ {2 + [(4 + 23) - 24]} × 3

10 ÷ {2 + [27 - 24]} × 3

10 ÷ {2 + 3} × 3

10 ÷ 5 × 3

2 × 3

6

c) 2² × [50 + (36 + 9 - 4) - (60 - 14)] ÷ 5

4 × [50 - 41 - 46] ÷ 5

4 × 45 ÷ 5

180 ÷ 5

36

d) 5 + (3 × 6 + 2 × 3 × 5) - 24

5 + (18 + 30) - 24

5 + 48 - 24

53 - 24

29