0.64÷0.8+1.6×0.5用简便方法怎么做 日期:2021-11-07 00:28:07 人气:1 0.64÷0.8+1.6×0.5用简便方法怎么做 0.64÷0.8+1.6×5=0.64×5/4+1.6×5=5×(0.16+1.6)=5×1.76=8.8