1998+1997-1996-1995+1994+1993-1992-1991+...+198+197-196-195=?...*10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 21:10:36
1998+1997-1996-1995+1994+1993-1992-1991+...+198+197-196-195=?...*10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
1998+1997-1996-1995+1994+1993-1992-1991+...+198+197-196-195=?
...*10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
1998+1997-1996-1995+1994+1993-1992-1991+...+198+197-196-195=?...*10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
1804.
每四个一组,和为4,共1804组.