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8.62*0.6+0.862*4怎么简便计算?
人气:323 ℃ 时间:2020-01-30 22:45:01
解答
8.62*0.6+0.862*4
=8.62*0.6+8.62*0.4
=8.62*(0.6+0.4)
=8.62*1
=8.62
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