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0.34×12.5+0.125×66怎么简便计算
人气:470 ℃ 时间:2020-02-20 04:52:21
解答
0.34×12.5+0.125×66
=3.4*1.25+1.25*6.6
=1.25(3.4+6.6)
=1.25*10
=12.5
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