Question

Resolva a expressão: {[(8 · 4 + 3) ÷ 7 + (3 + 15 ÷ 5) · 3] · 2 – (19 – 7) ÷ 6} · 2 + 12 = ( )10 ( )100 ( )1000 ( )10000

Answer 1

{[(8•4+3)÷7+(3+15÷5)•3]•2-(19-7)÷6}•2+12

{[(32+3)÷7+(3+3)•3]•2-(12)÷6}•2+12

{[(32+3)÷7+(3+3)•3]•2-(12)÷6}•2+12

{[35÷7+6 •3]•2 - 12 ÷6}•2+12

{[5+18]•2 - 2}•2+12

{23 •2 - 2}•2+12

{46 - 2}•2+12

44•2+12

88+12 = 100

Espero ter ajudado :)