1992 1998 1997 2003 2008 1999怎样算简便
来源：学生作业帮助网 编辑：六六作业网 时间：2024/05/08 06:42:15
199219981997200320081999怎样算简便199219981997200320081999怎样算简便199219981997200320081999怎样算简便1992+1998+199
1992 1998 1997 2003 2008 1999怎样算简便
1992 1998 1997 2003 2008 1999怎样算简便
1992 1998 1997 2003 2008 1999怎样算简便
1992+1998+1997+2003+2008+1999
=(1992+2008)+(1997+2003)+(2000-2)+(2000-1)
=4000+4000+4000-3
=12000-3
=11997