五上数学期中.小数乘除法简便计算

五上数学期中.小数乘除法简便计算

  • 简介

    1.计算下面各题,怎样算简便就怎样算。 4.38÷0.125÷0.8 =4.38÷(0.125×0.8) =4.38÷0.1 =43.8 6.4×4.5+3.6×4.5 =(6.4+3.6)×4.5      =10×4.5 =45 1.75×202 =1.75×(200+2) =1.75×200+1.75×2 =350+3.5 =353.5 9.2÷0.25÷4 =9.2÷(0.25×4) =9.2÷1 =9.2

五上数学期中.小数乘除法简便计算