34.5*8.23-34.5+0.277*345简算

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34.5*8.23-34.5+0.277*345简算

34.5*8.23-34.5+0.277*345
=34.5*8.23-34.5+2.77*34.5
=34.5*(8.23-1+2.77)
=34.5*10
=345

34.5*8.23-34.5+0.277*345
=34.5*8.23-34。5+2.77*34.5)
=34.5*(8.23-1+2.77)
=34.5*10
=345

34.5*(8.23-1+2.77)=34.5*10=345

原式=34.5*(8.23-1+2.77)
=34.5*10
=345