用简便方法计算下面各题.9÷0.125 25.25×0.65×4÷0.65 0.485×102-48.5= = == = = = _数学解答

用简便方法计算下面各题.
9÷0.125 25.25×0.65×4÷0.65 0.485×102-48.5
= = =
= = =
= = =
=

人气：242 ℃　时间：2020-04-06 01:28:52

解答

9÷0.125=9*1/8 =9/8 25.25×0.65×4÷0.65=25.25*4*(0.65/0.65)=25.25*4*1=1010.485×102-48.5=48.5*1.02-48.5=48.5*(1.02-1)=48.5*0.02=0.485*2=0.97