Question

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

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