简便算法：八又五分之三乘二点七加六十二乘零点一四加三十五成零点八六

八又五分之三=8.6 八又五分之三乘二点七加六十二乘零点一四加三十五成零点八六=8.6×2.7+62×0.14+35×0.86=8.6×2.7+35×0.86+62×0.14=0.86×2.7+35×0.86+62×0.14=0.86×(27+35)+62×0.14=0.86×62+62×0.14=62...