2002*2000/2001简便计算
人气:460 ℃ 时间:2020-01-09 07:05:07
解答
2002*2000/2001
=(2001+1)*(2000/2001)
=2001*2000/2001+2000/2001
=2000+2000/2001
=2000又2000/2001
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