23 June 2021

• 13:1213:12, 23 June 2021 diff hist +38 m Mathleague.org Added mathleague.org to the list of mathematics competitions
• 13:0913:09, 23 June 2021 diff hist +53 m 2008 Indonesia MO Problems →Problem 4 current
• 01:3801:38, 23 June 2021 diff hist +2,462 N 2008 Indonesia MO Problems/Problem 5 Solutions to Problem 5 (solution 1 credit to mehmetcantu) -- two proof approaches!

21 April 2021

• 21:2521:25, 21 April 2021 diff hist +2,242 Mathleague.org Big updates! Includes more details, difficulty scale, and link to official YouTube channel and other resources.

25 February 2021

• 15:0315:03, 25 February 2021 diff hist +1,646 2006 iTest Problems/Problem U7 Solution to U7 -- first solution writeup of 2021 and finally got that problem down! current

23 February 2021

• 18:4418:44, 23 February 2021 diff hist 0 m 2006 iTest Problems/Problem U8 Fixed the value.
• 14:4814:48, 23 February 2021 diff hist −412 m 1997 JBMO Problems/Problem 4 Conciseness change (thanks Quantomaticguy) current
• 14:4414:44, 23 February 2021 diff hist −169 m 1961 AHSME Problems/Problem 38 Undo revision 139965 by Quantomaticguy -- alternate solution not correct Tag: Undo
• 14:2414:24, 23 February 2021 diff hist +115 William Lowell Putnam Mathematical Competition Adjusted links of the Putnam (since some of them do not work)

7 September 2020

• 21:1021:10, 7 September 2020 diff hist +26 m Percent No edit summary
• 21:0821:08, 7 September 2020 diff hist +27 m Rate No edit summary current
• 21:0721:07, 7 September 2020 diff hist +13 m Ratio No edit summary
• 21:0421:04, 7 September 2020 diff hist +2,686 N Percent Created page with "A '''percent''' is a type of ratio where something is compared to a hundred. Probabilities, scores, and success rates are commonly written in percents. ==Conversion to F..."
• 20:3720:37, 7 September 2020 diff hist −123 Rate Rewriting with strategy for rate problems as well as Alcumus problem links.
• 20:2820:28, 7 September 2020 diff hist +243 m Ratio Minor cleanup and practice problems.

12 June 2020

• 16:4816:48, 12 June 2020 diff hist +4,313 Decimal Added comparison, operations, and practice problem links current

11 June 2020

• 19:3719:37, 11 June 2020 diff hist +2,159 Inequality Cleaned up the messy section on solving inequalities -- and added related Alcumus units
• 19:0319:03, 11 June 2020 diff hist +780 Mixed number Added operations on mixed numbers (and link to Alcumus unit) current
• 18:3418:34, 11 June 2020 diff hist +2,558 Fraction Expanded section to include conversion, simplification, comparison, and the four operations (as well as Alcumus units) current
• 18:0418:04, 11 June 2020 diff hist +1,971 Prime factorization Updated link to Prime Shooter and added example
• 15:4215:42, 11 June 2020 diff hist +155 m Divisibility rules Small organization changes
• 15:2515:25, 11 June 2020 diff hist −328 m Exponentiation No edit summary
• 15:2415:24, 11 June 2020 diff hist −408 Exponentiation Cleanup and Alcumus
• 14:5514:55, 11 June 2020 diff hist +1,121 Order of operations Added explanations and link to Alcumus
• 14:2914:29, 11 June 2020 diff hist +128 m Algebraic manipulation Added units from Alcumus

25 April 2020

• 11:5611:56, 25 April 2020 diff hist +233 Contest strategies Added "staying calm" as a test strat.

14 April 2020

• 14:1114:11, 14 April 2020 diff hist +105 m Optimization Added the use of Olympiads (AM-GM, Cauchy, etc.).
• 14:0814:08, 14 April 2020 diff hist +3,783 Algebraic manipulation More information on algebraic manipulation, including cross-multiplication and extraneous solutions.

10 April 2020

• 17:5217:52, 10 April 2020 diff hist +1,715 Homothety Properties, usage, and a picture added!
• 16:4116:41, 10 April 2020 diff hist +1,971 Algebra Undo revision 115159 by Winter29 (talk) Tag: Undo
• 16:3916:39, 10 April 2020 diff hist +313 System of equations Minor cleanup, more strategies, and practice problems.
• 15:5315:53, 10 April 2020 diff hist +1,333 Substitution Cleanup and added clever substitution section. current
• 14:0514:05, 10 April 2020 diff hist +1,080 Word problem Added strategies. current
• 11:5811:58, 10 April 2020 diff hist +1,837 N 2004 Pan African MO Problems/Problem 4 Solution to 2004 Pan African MO Problem 4 -- simple words-to-math problem current

8 April 2020

• 16:5016:50, 8 April 2020 diff hist 0 m 2008 Indonesia MO Problems/Problem 1 Adjusted difficulty to Intermediate Geo. current
• 16:4916:49, 8 April 2020 diff hist +1,389 N 2008 Indonesia MO Problems/Problem 1 Solution to 2008 Indonesia MO Problem 1 -- cyclics

27 March 2020

• 10:5910:59, 27 March 2020 diff hist +39 m Nordic Mathematical Contest No edit summary current
• 10:5810:58, 27 March 2020 diff hist +91 m Nordic Mathematical Contest Link upgrade!
• 10:4610:46, 27 March 2020 diff hist 0 m 2004 Pan African MO Problems/Problem 3 Adjusted difficulty to Intermediate NT. current
• 10:4310:43, 27 March 2020 diff hist +1,778 N 2004 Pan African MO Problems/Problem 3 Solution to Problem 3 -- numbers in a circle
• 10:0910:09, 27 March 2020 diff hist +4 m 2001 Pan African MO Problems/Problem 3 Changed difficulty to Intermediate Geo. current

26 March 2020

• 14:0814:08, 26 March 2020 diff hist +4,188 N 2007 Indonesia MO Problems/Problem 7 Solution to Problem 7 -- a pretty complicated circle geo problem current

25 March 2020

• 19:3219:32, 25 March 2020 diff hist +2,620 N 2004 Pan African MO Problems/Problem 5 Solution to Problem 5 -- trial and error! current
• 14:0014:00, 25 March 2020 diff hist −1 m User:Rockmanex3 →Hall of Problems current
• 13:5913:59, 25 March 2020 diff hist +1,049 User:Rockmanex3 Update 3/25/20

24 March 2020

• 15:5415:54, 24 March 2020 diff hist +211 m 2004 Pan African MO Problems/Problem 2 Reformatting current
• 15:5015:50, 24 March 2020 diff hist +988 N 2004 Pan African MO Problems/Problem 1 Solution to Problem 1 -- number theory casework current

22 March 2020

• 19:5519:55, 22 March 2020 diff hist +2,047 N 2008 Indonesia MO Problems/Problem 2 Solution to Problem 2 -- oh baby a triple!

21 March 2020

• 12:4312:43, 21 March 2020 diff hist +2,983 N 2007 Indonesia MO Problems/Problem 8 Solution to Problem 8 (credit to crazyfehmy) -- perfect square shenans

19 March 2020

• 00:1600:16, 19 March 2020 diff hist +118 m 2007 Indonesia MO Problems/Problem 6 Solution edits current