0.25*0.7 1.16的简便计算应怎么做

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0.25*0.71.16的简便计算应怎么做0.25*0.71.16的简便计算应怎么做0.25*0.71.16的简便计算应怎么做=0.25*0.7*1.16=0.25*0.7*0.29*4=(0.25*

0.25*0.7 1.16的简便计算应怎么做
0.25*0.7 1.16的简便计算应怎么做

0.25*0.7 1.16的简便计算应怎么做
=0.25*0.7*1.16
=0.25*0.7*0.29*4
=(0.25*4)*0.7*(0.3-0.01)
=0.7*0.3-0.7*0.01
=0.21-0.007
=0.203