0.65×201怎么简算?

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0.65×201怎么简算?
0.65×201怎么简算?

0.65×201怎么简算?
0.65×201
=0.65×(200+1)
=0.65×200+0.65
=65×2+0.65
=130+0.65
=130.65

0.65×201
=0.65×(200+1)
=0.65×200+0.65
=130+0.65
=130.65

0.65×(200+1)=130+0.65=130.65