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28.67*67+286.7*32+573.4*0.05咋么简便计算?
人气:358 ℃ 时间:2020-03-20 19:47:03
解答
28.67*67+286.7*32+573.4*0.05
=286.7*6.7+286.7*3.2+286.7*0.1
=286.7*(6.7+3.2+0.1)
=286.7*10
=2867
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