2002除2001/2003 99乘99/100巧算_数学解答

2002除2001/2003 99乘99/100
巧算

人气：227 ℃　时间：2020-06-04 08:22:39

解答

2002除2001/2003
=(2001+1)*2003/2001
=1+2003/2001
=1+(2001+2)/2001
=4004/2001
99乘99/100
=99*(1-1/100)