3.2×42.3×3.75-12.5×0.423×16 怎么算啊

问题描述:

3.2×42.3×3.75-12.5×0.423×16 怎么算啊
3.2×42.3×3.75-12.5×0.423×16

先算乘法再算减法,前面3个等于507.6-84.6=423,纯手打,