使用交换律,把除以0.25和除以4放在一起就变成了除以1,这样就变成了1.37×2
1.37除0.25x2除4该怎样简便?1.37除0.25x2除4=1.37/4x1/2=1.37/8=0.17125
1.37÷0.25×2÷4=1.37×2÷(0.25×4)=2.74÷1=2.74
1.37÷0.25×2÷4=1.37×2÷0.25÷4=(1.37×2)÷(0.25×4)=2.74÷1=2.74