2000除以2001再乘以2002怎么做
问题描述:
2000除以2001再乘以2002怎么做
答
2000/2001x2002
=2000/2001x(2001+1)
=2000/2001x2001+2000/2001
=2000+2000/2001
=2000又2000/2001