0.52*79*0.4用简便方法计算

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0.52*79*0.4用简便方法计算
0.52*79*0.4用简便方法计算

0.52*79*0.4用简便方法计算
0.52*79*0.4
=0.52*0.4*79
=0.208*79
=0.208*(80-1)
=0.208*80-0.208
=16.64-0.208
=16.432