4.7×0.35+0.47×4.2+0.047×23用简便方法计算

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4.7×0.35+0.47×4.2+0.047×23用简便方法计算
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4.7×0.35+0.47×4.2+0.047×23用简便方法计算
4.7×0.35+0.47×4.2+0.047×23用简便方法计算

4.7×0.35+0.47×4.2+0.047×23用简便方法计算
4.7×0.35+0.47×4.2+0.047×23=4.7*0.35+4.7*0.42+4.7*0.23=4.7*(0.35+0.42+0.23) =4.7*(0.35+0.65)=4.7*1=4.7 亲,您的采纳是我的动力,