7.86*10+78.6怎么简算
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7.86*10+78.6怎么简算
7.86*10+78.6怎么简算
7.86*10+78.6怎么简算
7.86*10+78.6=78.6+78.6=157.2
7.86*10+78.6
=78.6*(1+1)
=78.6*2
=157.2
7.86*10+78.6怎么简算
7.86*10+78.6怎么简算
7.86*10+78.6怎么简算
7.86*10+78.6=78.6+78.6=157.2
7.86*10+78.6
=78.6*(1+1)
=78.6*2
=157.2