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0.485乘102减48.5等于?(简便计算)
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人气:293 ℃ 时间:2019-10-01 08:21:04
解答
0.485*102-48.5
=48.5*1.02-48.5
=48.5*(1.02-1)
=48.5*0.02
=0.97
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