Question

Expressões Aritméticas
1) {21+[7.(33-22)-50]:(9.3)}:11+8
2) 35-{5+[15:(3+2)-(18+2):10}+3.(5+2)+3}
3) 2^2+5.3-4^2

Answer 1

1) {21+[7.(33-22)-50]÷(9.3)}÷11+8
{21+[7.11-50]÷27}÷11+8
{21+[77-50]÷27}÷11+8
{21+27÷27}÷11+8
{21+1}÷11+8
22÷11+8
2+8
10
2) 35-{5+[15÷(3+2)-(18+2)÷10}+3.(5+2)+3}
35-{5+[15÷5-20÷10}+3.10
35-{5+[3-2}+30
35-{5+1}+30
35-6+30
35+24
60
3) 2^2+5.3-4^2
4+15-16
4-1
3