14 March 2019

• 20:0020:00, 14 March 2019 diff hist +232 2019 AIME I Problems/Problem 7 →Solution: Added solution.
• 19:5619:56, 14 March 2019 diff hist +657 2019 AIME I Problems/Problem 4 →Solution: Added.
• 19:4819:48, 14 March 2019 diff hist +525 2019 AIME I Problems/Problem 2 Added problem and solution

14 February 2019

• 17:3717:37, 14 February 2019 diff hist −66 2019 AMC 12B Answer Key Changed formatting current
• 17:3717:37, 14 February 2019 diff hist −24 2019 AMC 12B Answer Key Undo revision 102449 by Expilncalc (talk) Tag: Undo
• 16:4516:45, 14 February 2019 diff hist +23 m 2019 AMC 12B Problems/Problem 19 →Problem
• 16:4416:44, 14 February 2019 diff hist +5 m 2019 AMC 12B Problems/Problem 19 →Problem
• 16:4016:40, 14 February 2019 diff hist +7 m 2019 AMC 12B Problems/Problem 13 →Solution Variant: Slight change to normal text within Latex block.
• 16:3916:39, 14 February 2019 diff hist −9 m 2019 AMC 12B Problems/Problem 16 →Solution
• 16:3916:39, 14 February 2019 diff hist +146 m 2019 AMC 12B Problems/Problem 22 →Problem: Added the set of solution
• 16:3816:38, 14 February 2019 diff hist +327 2019 AMC 12B Problems/Problem 22 →Problem: Added problem statement.
• 16:0716:07, 14 February 2019 diff hist +895 2019 AMC 10B Problems/Problem 23 →Solution: Added solution.
• 16:0316:03, 14 February 2019 diff hist +3 m 2019 AMC 12B Problems/Problem 19 →Problem: Changed $ to dollar signs until I can fix the problem.
• 16:0116:01, 14 February 2019 diff hist +892 2019 AMC 12B Problems/Problem 19 →Problem: Added problem statement.
• 15:5915:59, 14 February 2019 diff hist +1,244 2019 AMC 12B Problems/Problem 16 →Solution: I pasted the solution here. It was originally on the 12B 19 (incorrect), so I just moved it here.
• 15:5815:58, 14 February 2019 diff hist −1,815 2019 AMC 12B Problems/Problem 19 Do regret to say this, but this is actually AMC 12B problem 16 and not 19. However, I will simply transfer the solution over to Problem 16. Tag: Replaced
• 15:5715:57, 14 February 2019 diff hist +592 2019 AMC 12B Problems/Problem 18 →Problem: Added problem statement (but not answer choices).
• 15:4815:48, 14 February 2019 diff hist +701 2019 AMC 12B Problems/Problem 16 →Problem: Added problem statement.
• 15:4515:45, 14 February 2019 diff hist +647 2019 AMC 12B Problems/Problem 13 I have transferred a solution that was put up on Problem 16 (accidentally) and put it here as "Solution Variant".
• 15:4415:44, 14 February 2019 diff hist −625 2019 AMC 12B Problems/Problem 16 →Solution: I have moved the solution to its proper place at Problem 13. This site is for Problem 16.
• 15:4215:42, 14 February 2019 diff hist +50 m 2019 AMC 12B Problems/Problem 12 →Solution 1: Fixed typo.
• 15:4215:42, 14 February 2019 diff hist +477 2019 AMC 12B Problems/Problem 12 Added new solution.
• 15:3915:39, 14 February 2019 diff hist +60 m 2019 AMC 12B Problems/Problem 12 →Problem
• 15:3915:39, 14 February 2019 diff hist +496 2019 AMC 12B Problems/Problem 12 →Problem: Added problem statement.
• 15:3715:37, 14 February 2019 diff hist +13 m 2019 AMC 12B Problems/Problem 11 →Solution: Slight adjustment to answer box format.
• 15:3715:37, 14 February 2019 diff hist +24 2019 AMC 12B Answer Key Oops! Changed formatting!
• 15:3615:36, 14 February 2019 diff hist +117 2019 AMC 12B Answer Key Added answer key.
• 15:3415:34, 14 February 2019 diff hist +410 2019 AMC 12B Problems/Problem 10 →Solution: Added solution.
• 15:3215:32, 14 February 2019 diff hist +118 2019 AMC 12B Problems/Problem 10 →Problem: Added solution options with good Latex
• 15:3215:32, 14 February 2019 diff hist +123 2019 AMC 12B Problems/Problem 9 →Problem: Added solution set with good Latex.
• 15:3115:31, 14 February 2019 diff hist +474 2019 AMC 12B Problems/Problem 10 →Problem
• 15:1715:17, 14 February 2019 diff hist −1 m 2019 AMC 10B Problems/Problem 10 →Solution 3: fixed typo
• 15:1715:17, 14 February 2019 diff hist +433 2019 AMC 10B Problems/Problem 10 Added new solution.
• 15:1415:14, 14 February 2019 diff hist 0 m 2019 AMC 10B Problems/Problem 7 →Solution 3: Fixed small typo

28 May 2018

• 19:5019:50, 28 May 2018 diff hist −60 m 2018 AIME I Problems/Problem 9 →Solution 1

16 April 2018

• 17:1717:17, 16 April 2018 diff hist +36 m Proper divisor →See Also
• 17:1417:14, 16 April 2018 diff hist 0 2016 USAMO Problems/Problem 4 No edit summary
• 17:1217:12, 16 April 2018 diff hist +835 2016 USAMO Problems/Problem 4 Added solution.

15 April 2018

• 20:2320:23, 15 April 2018 diff hist −2 m 2014 USAJMO Problems/Problem 1 →Solution current
• 19:4519:45, 15 April 2018 diff hist +2,401 2014 USAJMO Problems/Problem 4 Added new solution.

14 April 2018

• 14:0114:01, 14 April 2018 diff hist +2 2017 USAJMO Problems/Problem 2 →Solution (1.5, x) where |x|>0
• 14:0014:00, 14 April 2018 diff hist −1 m 2017 USAJMO Problems/Problem 2 →Solution (1.5, x) where |x|>0
• 14:0014:00, 14 April 2018 diff hist +1,045 2017 USAJMO Problems/Problem 2 Added new solution

9 April 2018

• 21:3321:33, 9 April 2018 diff hist −85 m 2013 USAJMO Problems/Problem 2 →Similar Second Solution and Inspiration current
• 21:3321:33, 9 April 2018 diff hist +1,636 2013 USAJMO Problems/Problem 2 Added solution.

8 April 2018

• 21:0121:01, 8 April 2018 diff hist +3,426 2013 USAJMO Problems/Problem 4 Added new solution.

5 April 2018

• 21:4421:44, 5 April 2018 diff hist 0 m 2010 USAMO Problems/Problem 1 →Operation Diagram: Changed * to ~ to avoid confusion
• 21:4321:43, 5 April 2018 diff hist +2,270 2010 USAMO Problems/Problem 1 Added new solution.
• 16:3116:31, 5 April 2018 diff hist +61 m 2010 USAJMO Problems/Problem 2 →Proof: Added clarification
• 16:0516:05, 5 April 2018 diff hist +13 m 2010 USAJMO Problems/Problem 1 →Solution Number Sense