2000-1997+1994-1991+1988-1985+1982...+14-11+8-5+2
2000-1997+1994-1991+1988-1985+1982...+14-11+8-5+2
巧算:2000-1997+1994-1991+1988-1985+1982-1979+...+14-11+8-5+2
简算:2000-1997+1994-1991+1988-1985···+14-11+8-5
还要算出.是多少2000-1997+1994-1991+1988-1985+1952-1979+...+14-11+8-
2000-1997+1994-1991+1998-1985+1982-1979+...+14-11+8-5+2=( )简
2002+2000-1997+1994-1991+1988-……+14-11+8-5+2 =2002
2000-1997+1994-1991+1998-1995+1982-1979+...+14-11+8-5+2
计算2000-1997+1994-1991+1998-1995+1982-1979+~+14-11+8-5+2
计算下面两个题...1.1991-1988+1985-1982+...-14+11-8+5-2=?2.2002*2003
(1994^2-2000)*(1994^2+3985)*1995/1991*1993*1996*1997
计算:(1994^2-2000)(1994^2+3985)*1995/1991*1993*1996*1997
(1)1997+1-2-3+4+5-6-7+8+9-10-11+12+13-14-15+.+1993-1994-1995