12.35*1.06-200.8*0.6简便计算

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12.35*1.06-200.8*0.6简便计算12.35*1.06-200.8*0.6简便计算12.35*1.06-200.8*0.6简便计算12.35*1.06-200.8*0.6=12.35*(

12.35*1.06-200.8*0.6简便计算
12.35*1.06-200.8*0.6简便计算

12.35*1.06-200.8*0.6简便计算
12.35*1.06-200.8*0.6
=12.35*(1+0.06)-(200+0.8)*0.6
=12.35+12.35*0.06-200*0.6-0.8*0.6
=12.35-200*0.6+12.35*0.06-8*0.06
=12.35-120+(12.35-8)*0.06
=12.35-120+4.35*0.06
=12.35-120+0.261
=-107.389