16.2%(48.6+5.4)*0.5简便方法算

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16.2%(48.6+5.4)*0.5简便方法算16.2%(48.6+5.4)*0.5简便方法算16.2%(48.6+5.4)*0.5简便方法算16.2%(48.6+5.4)*0.5=0.162*0.

16.2%(48.6+5.4)*0.5简便方法算
16.2%(48.6+5.4)*0.5
简便方法算

16.2%(48.6+5.4)*0.5简便方法算
16.2%(48.6+5.4)*0.5
=0.162*0.5*(48.6+5.4)
=0.081*54
=(0.08+0.001)*54
=4.32+0.054
=4.374