4.25 0.99+0.01用简便方法计算

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4.250.99+0.01用简便方法计算4.250.99+0.01用简便方法计算4.250.99+0.01用简便方法计算4.25*0.99+0.01=4.25*(1-0.01)+0.01=4.25+0

4.25 0.99+0.01用简便方法计算
4.25 0.99+0.01用简便方法计算

4.25 0.99+0.01用简便方法计算
4.25*0.99+0.01
=4.25*(1-0.01)+0.01
=4.25+0.01*(1-4.25)
=4.25-0.01*3.25
=4.25-0.0325
=4.2175