简算 16 17小题 - 知识问答

简算 16 17小题

4个回答

246×321963／123369
=2x123x（321963/1003）/(123369/1003)
=2x123x321/123
=2/123x123x321
=2x321
=642
333*777-222*666/555*999
=3*111*7*111-2*111*6*111/5*111*9*111
=3*7-2*6/5*9
=21-12/45
=1/5

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