6.78*1.32-0.32请用简便算法列出每部

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6.78*1.32-0.32请用简便算法列出每部
6.78*1.32-0.32请用简便算法列出每部

6.78*1.32-0.32请用简便算法列出每部
6.78*1.32-0.32
=6.78*(1+0.32)-0.32
=6.78+6.78*0.32-0.32
=6.78+0.32*(6.78-1)
=6.78+0.32*5.78
=6.78+1.8496
=8.6296

6.78*1.32-0.32
=6.87(1+0.32)-0.32
=6.87+6.87*0.32-0.32
=6.87+0.32*(6.87-1)
=6.87+0.32*5.87
=6.87+1.8784
=8.7484 .

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