30 July 2011

• 16:1516:15, 30 July 2011 diff hist +55 m 1999 AMC 8 Problems/Problem 21 Added see also box
• 16:1416:14, 30 July 2011 diff hist +865 1999 AMC 8 Problems/Problem 21 Solution 2
• 15:5715:57, 30 July 2011 diff hist 0 m 1999 AMC 8 Problems/Problem 20 →See also
• 15:5715:57, 30 July 2011 diff hist +3,297 N 1999 AMC 8 Problems/Problem 20 Solution
• 15:4715:47, 30 July 2011 diff hist 0 1999 AMC 8 Problems/Problem 19 →Solution
• 15:4615:46, 30 July 2011 diff hist +1,579 N 1999 AMC 8 Problems/Problem 19 Solution
• 15:3815:38, 30 July 2011 diff hist +1,885 N 1999 AMC 8 Problems/Problem 18 Solutions 1 and 2
• 15:2915:29, 30 July 2011 diff hist 0 1999 AMC 8 Problems/Problem 17 See Also box
• 15:2915:29, 30 July 2011 diff hist +1,487 N 1999 AMC 8 Problems/Problem 17 Solution
• 15:1715:17, 30 July 2011 diff hist +2,384 N 1999 AMC 8 Problems/Problem 15 Solutions 1 and 2
• 15:0115:01, 30 July 2011 diff hist +1,157 N 1999 AMC 8 Problems/Problem 16 Solution

26 July 2011

• 12:1312:13, 26 July 2011 diff hist −4 1986 AIME Problems/Problem 5 No edit summary
• 12:1312:13, 26 July 2011 diff hist −4 1986 AIME Problems/Problem 5 No edit summary

23 July 2011

• 15:4515:45, 23 July 2011 diff hist +313 2000 AIME I Problems/Problem 5 →Solution 2
• 15:2115:21, 23 July 2011 diff hist +49 1996 AIME Problems/Problem 12 →Solution 3
• 15:1915:19, 23 July 2011 diff hist +314 1996 AIME Problems/Problem 12 →Solution 3
• 15:1315:13, 23 July 2011 diff hist +1 1990 AIME Problems/Problem 12 →Solution 2
• 15:1215:12, 23 July 2011 diff hist +14 1990 AIME Problems/Problem 12 →Solution 2

27 June 2011

• 21:0221:02, 27 June 2011 diff hist +1,623 2001 AIME I Problems/Problem 4 →Solution

24 June 2011

• 15:0315:03, 24 June 2011 diff hist +25 2000 AIME II Problems/Problem 5 →Solution
• 14:5614:56, 24 June 2011 diff hist +986 2000 AIME II Problems/Problem 4 →Solution
• 14:3414:34, 24 June 2011 diff hist +6 2000 AIME II Problems/Problem 3 →Solution

20 June 2011

• 09:3209:32, 20 June 2011 diff hist +64 2000 AIME I Problems/Problem 6 →Solution

19 June 2011

• 20:5620:56, 19 June 2011 diff hist +2,501 2000 AIME I Problems/Problem 5 No edit summary
• 00:3100:31, 19 June 2011 diff hist −1 1992 AIME Problems →Problem 15

17 June 2011

• 14:3314:33, 17 June 2011 diff hist +3 1999 AIME Problems →Problem 5

10 June 2011

• 16:4816:48, 10 June 2011 diff hist +803 1997 AIME Problems/Problem 6 →Solution

8 June 2011

• 15:1015:10, 8 June 2011 diff hist +669 1996 AIME Problems/Problem 12 →Solution

7 June 2011

• 16:3916:39, 7 June 2011 diff hist +2,343 1990 AIME Problems/Problem 12 No edit summary

5 June 2011

• 16:0916:09, 5 June 2011 diff hist +1,897 N 2011 AMC 12B Problems/Problem 15 Created page with "==Problem 15== How many positive two-digits integers are factors of <math>2^{24}-1</math>? <math>\textbf{(A)}\ 4 \qquad \textbf{(B)}\ 8 \qquad \textbf{(C)}\ 10 \qquad \textbf{(..."
• 15:3115:31, 5 June 2011 diff hist 0 2011 AMC 12B Problems/Problem 11 →Solution
• 10:1810:18, 5 June 2011 diff hist +1,465 N 2011 AMC 12B Problems/Problem 11 Created page with "==Problem== A frog located at <math>(x,y)</math>, with both <math>x</math> and <math>y</math> integers, makes successive jumps of length <math>5</math> and always lands on points..."

10 March 2011

• 19:1519:15, 10 March 2011 diff hist +663 2011 AMC 12A Problems/Problem 8 →Solution

21 February 2011

• 00:1200:12, 21 February 2011 diff hist +1,177 2000 AMC 10 Problems/Problem 12 →Solution

20 February 2011

• 17:0017:00, 20 February 2011 diff hist +41 1974 USAMO Problems/Problem 4 →Solution
• 16:1816:18, 20 February 2011 diff hist +5,168 1974 USAMO Problems/Problem 4 No edit summary

3 January 2010

• 19:1919:19, 3 January 2010 diff hist +13 2005 AIME II Problems/Problem 5 →Solution
• 19:1819:18, 3 January 2010 diff hist +413 2005 AIME II Problems/Problem 5 No edit summary

1 January 2010

• 13:4113:41, 1 January 2010 diff hist +3 m 2002 AIME I Problems Problem 7 - added y^1 to binomial expansn

31 December 2009

• 21:5421:54, 31 December 2009 diff hist +1 m 1993 AIME Problems/Problem 1 No edit summary

29 December 2009

• 19:4319:43, 29 December 2009 diff hist +6 m 1987 AIME Problems/Problem 3 1 is not a proper divisor
• 03:2703:27, 29 December 2009 diff hist +1,502 1983 AIME Problems/Problem 5 Second solution using less clever subsitutions
• 00:4900:49, 29 December 2009 diff hist +1,153 1983 AIME Problems/Problem 7 Added a third solution using casework

19 December 2008

• 03:1903:19, 19 December 2008 diff hist −2 2002 AIME II Problems →Problem 12: Changed problem 12 to be solvable!

17 December 2008

• 02:0602:06, 17 December 2008 diff hist 0 m 1996 AIME Problems →Problem 6: typo
• 02:0402:04, 17 December 2008 diff hist +418 1996 AIME Problems/Problem 5 No edit summary

16 December 2008

• 14:1914:19, 16 December 2008 diff hist +838 2004 AIME II Problems/Problem 3 →Solution
• 02:2602:26, 16 December 2008 diff hist +2,280 2002 AIME II Problems/Problem 12 Solved!
• 01:0601:06, 16 December 2008 diff hist 0 2002 AIME II Problems/Problem 12 changed a10 < .4 to a10 = .4, making the problem actually solvable!

14 December 2008

• 22:1822:18, 14 December 2008 diff hist +2,325 2002 AIME II Problems/Problem 5 No edit summary