40.5/0.81*0.18怎样简算
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40.5/0.81*0.18怎样简算40.5/0.81*0.18怎样简算40.5/0.81*0.18怎样简算40.5/0.81*0.18=40.5/(0.405*2)*0.18=40.5/(40.5*
40.5/0.81*0.18怎样简算
40.5/0.81*0.18怎样简算
40.5/0.81*0.18怎样简算
40.5/0.81*0.18
=40.5/(0.405*2)*0.18
=40.5/(40.5*0.02)*0.18
=0.18/0.02
=9