2001+1995+2000+2003+1998+1997+1994+2002 简算
问题描述:
2001+1995+2000+2003+1998+1997+1994+2002 简算
答
2001+1995+2000+2003+1998+1997+1994+2002
=(2000+1)+(2000-5)+2000+(2000+3)+(2000-2)+(2000-3)+(2000-6)+(2000+2)
=2000*8+(1-5+3-2-3-6+2)
=16000-10
=15990
答
2001+1995+2000+2003+1998+1997+1994+2002
=2000×8+(1-5+0+3-2-3-6+2)
=16000-10
=15990