0.627*13+0.52*62.7+3.5*6.27怎么简便

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0.627*13+0.52*62.7+3.5*6.27怎么简便

0.627*13+0.52*62.7+3.5*6.27怎么简便
0.627*13+0.52*62.7+3.5*6.27怎么简便

0.627*13+0.52*62.7+3.5*6.27怎么简便
0.627*13+0.52*62.7+3.5*6.27
=0.627×13+0.627×52+0.627×35
=0.627×(13+52+35)
=0.627×100
=62.7

62.7×0.13+62.7×0.52+62.7×0.35=62.7×(0.13+0.52+0.35)=62.7×1=62.7