1.25*0.7+4/5*10%+125%*20%简便方法计算.

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1.25*0.7+4/5*10%+125%*20%简便方法计算.

1.25*0.7+4/5*10%+125%*20%
=1.25×(0.7+10%+20%)
=1.25×1
=1.25