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45×2.08+1.5×37.6怎么算
人气:191 ℃ 时间:2020-02-06 10:03:07
解答
45×2.08+1.5×37.6
=1.5×30×2.08+1.5×37.6
=1.5×62.4+1.5×37.6
=1.5×(62.4+37.6)
=1.5×100
=150
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