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简便计算0.27*0.54+0.378/1.4*0.46
人气:478 ℃ 时间:2020-01-25 05:42:55
解答
0.27*0.54+0.378/1.4*0.46
=0.27*0.54+0.27*0.46
=0.27*(0.54+0.46)
=0.27
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