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2-4+6-8+10-12+....-2000+2002-2004+2006=??? :-o

回應

j7631103

2006-03-13 20:31

2+(-4+6)+(-8+10)+.........+(-2004+2006)
=2*502
=1004

a7829545a

2006-03-25 12:45

2006/2=1003
1003/2=501....1
2-4=6-8=-2
-2*501+2006
=-1002+2006
=1004
1004

訪客 (未驗證)

2006-06-09 22:06

2(-4+6)...........................2004+2006
2+501*2=1004

a3602611

2006-06-09 22:22

2+(-4+6)+(-8+10)........+(-2004+2006)
=2*502
=1004
就這樣

z81811123

2006-06-10 21:18

(2-4)+(6-8)........+(2002-2004)+2006
=-2*501+2006
=2006-1002
=1004

84927

2006-08-19 16:48

2006/2+1=1004