(-8000)(1/2002-1)(1/2001-1)(1/2000-1).(1/1002-1)(1/1001-1)SOS一定要对否则我砍死你
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简便运算(1-1/2002)+(1-1/2002*2)+(1-1/2002*3)+.+(1-1/2002*2001)+(1-1/2002*2002)(1-1/2002)+(1-1/2002*2)+(1-1/2002*3)+.+(1-1/2002*2001)+(1-1/2002*2002)
(-8000)(1/2002-1)(1/2001-1)(1/2000-1).(1/1002-1)(1/1001-1)SOS一定要对否则我砍死你
2002/2002又2002/2003+1/2004
2002/（2002+2002/2003）+1/2004
巧算:(1-1/2002)+(2-1/2002*2)+.+(2002-1/2002*2002)
(2002/2+2002/4+2002+6+...+2002/2002)-(2002/1+2002/3+2002/5+...+2002/2001)算清楚!
（2/2002+4/2002+6/2002+...+2002/2002）-（1/2002+3/2002+5/2002+...2001/2002）
(-0.2)^2002X5^2002+(-1)^2002+(-1)^2001等于多少
2000×2002[1/2000×2002 1/2001×2002]简便方法
简便运算(1-1/2002)+(1-1/2002*2)+(1-1/2002*3)+.+(1-1/2002*2001)
(2002+2003*2001)/(2002*2003-1)简算
2002÷2002又2003分之2002+2004分之1
2002除于2002又2003分之2002+1/2004
(1²/2002-2²/2002+.13²/2002-14²/2002+15²/2002
|1/2004-1/2003|+|1/2003-1/2002|+|1/2002-1/2001|-|1/2001-1/2000|
|1/2003-1/2002|+|1/2004-1/2003|-|1/2004-1/2002| 要|1/2003-1/2002|+|1/2004-1/2003|-|1/2004-1/2002|
1/400+1/440+1/480+...1/8000=?
1+2+3...+2002+2003+2002+...+3+2+1=?