0.027+99*0.27简便算法

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0.027+99*0.27简便算法0.027+99*0.27简便算法0.027+99*0.27简便算法0.027+99*0.27=0.027+(100-1)*0.27=0.027+27-0.27=0.

0.027+99*0.27简便算法
0.027+99*0.27简便算法

0.027+99*0.27简便算法
0.027+99*0.27
=0.027+(100-1)*0.27
=0.027+27-0.27
=0.027+27-(0.3-0.03)
=(27-0.3)+(0.027+0.03)
=26.7+0.057
=26.757