如题所述
0.78*101
=0.78×(100+1)
=0.78×100+0.78×1
=78+0.78
=78.78
=0.78×(100+1)
=0.78×100+0.78×1
=78+0.78
=78.78
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第1个回答 2012-09-17
0.78*101
=0.78*(100+1)
=78+.078
=78.78
=0.78*(100+1)
=78+.078
=78.78