0.79*0.46*7.9*0.04 11.4*0.079的简便计算
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0.79*0.46+7.9*0.04+11.4*0.079
=0.79*0.46+0.79*0.4+1.14*0.79
=0.79*(0.46+0.4+1.14)
=0.79*2
=1.58
=0.79*0.46+0.79*0.4+1.14*0.79
=0.79*(0.46+0.4+1.14)
=0.79*2
=1.58
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