8 February 2020

• 01:1401:14, 8 February 2020 diff hist +822 2020 AMC 12B Problems/Problem 19 →Solution

2 February 2020

• 23:1023:10, 2 February 2020 diff hist −214 m 2020 AMC 10A Problems/Problem 7 →Solution 3

20 January 2020

• 19:3919:39, 20 January 2020 diff hist +30 m 2012 AMC 12A Problems/Problem 16 No edit summary
• 19:3719:37, 20 January 2020 diff hist +8 m 2012 AMC 12A Problems/Problem 16 No edit summary
• 19:3619:36, 20 January 2020 diff hist +828 2012 AMC 12A Problems/Problem 16 No edit summary

15 January 2020

• 02:5302:53, 15 January 2020 diff hist +2 m 2015 AMC 12A Problems/Problem 22 →Solution 3 (Easy Version)

27 November 2019

• 18:2918:29, 27 November 2019 diff hist +9 m Circumradius added a link

17 February 2019

• 19:1119:11, 17 February 2019 diff hist +210 m How should I prepare? No edit summary

9 February 2019

• 23:0823:08, 9 February 2019 diff hist 0 m Newton's Sums →Practice
• 23:0723:07, 9 February 2019 diff hist +31 m Newton's Sums No edit summary
• 22:4422:44, 9 February 2019 diff hist +16 2019 AMC 12A Problems/Problem 12 No edit summary

4 February 2019

• 23:0123:01, 4 February 2019 diff hist 0 m 2014 AMC 12A Problems/Problem 12 →Solution 2
• 23:0023:00, 4 February 2019 diff hist 0 m 2014 AMC 12A Problems/Problem 12 →Solution 2
• 19:2519:25, 4 February 2019 diff hist +1 m 2013 AMC 12A Problems/Problem 21 →Solution 1
• 19:2519:25, 4 February 2019 diff hist +4 m 2013 AMC 12A Problems/Problem 21 No edit summary

30 January 2019

• 01:2501:25, 30 January 2019 diff hist 0 m 2011 AMC 12B Problems/Problem 10 No edit summary

27 January 2019

• 01:3601:36, 27 January 2019 diff hist +30 m 2010 AMC 12A Problems/Problem 17 No edit summary
• 00:4100:41, 27 January 2019 diff hist −1 m AMC 12 Problems and Solutions fixed errors

24 January 2019

• 22:4722:47, 24 January 2019 diff hist +5 m United States Physics Olympics →Sample Problems

14 September 2018

• 23:0523:05, 14 September 2018 diff hist −4 m 2017 AMC 12A Problems/Problem 10 →Alternate Solution: Geometric Probability: Typo in name
• 21:5621:56, 14 September 2018 diff hist −1 m 2017 AMC 12A Problems/Problem 10 →Problem: Fixed typo in problem

30 August 2018

• 18:1218:12, 30 August 2018 diff hist −1 m 2018 AMC 10B Problems/Problem 18 No edit summary

19 August 2018

• 02:1202:12, 19 August 2018 diff hist +149 Cauchy-Schwarz Inequality Fixed Broken Links

5 July 2018

• 11:2311:23, 5 July 2018 diff hist −2 m 2018 AIME I Problems/Problem 5 →Note
• 11:2311:23, 5 July 2018 diff hist +121 m 2018 AIME I Problems/Problem 5 No edit summary

23 March 2018

• 19:0719:07, 23 March 2018 diff hist +43 m Elementary symmetric sum No edit summary

6 March 2018

• 01:2701:27, 6 March 2018 diff hist +2 m American Invitational Mathematics Examination →Format: Each answer is an integer from 000 to 999, inclusive

5 March 2018

• 02:1402:14, 5 March 2018 diff hist +40 m 2017 AIME I Problems/Problem 11 →Solution 1: made solution more complete
• 02:0202:02, 5 March 2018 diff hist −4 m American Invitational Mathematics Examination Fixed a broken link

2 February 2018

• 00:1900:19, 2 February 2018 diff hist +4 m 2016 AMC 12B Problems/Problem 20 No edit summary
• 00:1800:18, 2 February 2018 diff hist +9 m 2016 AMC 12B Problems/Problem 20 No edit summary
• 00:1600:16, 2 February 2018 diff hist +4 m 2016 AMC 12B Problems/Problem 18 →Solution: I replaced $x >= 0$, $ y >= 0$ with $x \geq 0$, $ y \geq 0$.

1 February 2018

• 23:2723:27, 1 February 2018 diff hist +26 m 2016 AMC 12B Problems/Problem 11 No edit summary
• 23:2223:22, 1 February 2018 diff hist +26 m 2016 AMC 12B Problems/Problem 8 →Solution 2
• 23:2123:21, 1 February 2018 diff hist +22 m 2016 AMC 12B Problems/Problem 8 →Solution 2

8 January 2018

• 22:5822:58, 8 January 2018 diff hist +4 m 2016 AMC 10A Problems/Problem 20 No edit summary
• 15:2015:20, 8 January 2018 diff hist +4 m 2016 AMC 10A Problems/Problem 21 No edit summary

5 January 2018

• 01:1901:19, 5 January 2018 diff hist +2 m 2017 AMC 12B Problems/Problem 15 No edit summary
• 01:1901:19, 5 January 2018 diff hist +1 m 2017 AMC 12B Problems/Problem 15 →Solution 1: Law of Cosines

25 December 2017

• 13:5513:55, 25 December 2017 diff hist −12 Fermat's Last Theorem →History: Removed a few faulty links
• 01:0001:00, 25 December 2017 diff hist −17 m 2006 AMC 12A Problems/Problem 14 No edit summary

22 December 2017

• 18:3818:38, 22 December 2017 diff hist 0 m 2016 AMC 12B Problems/Problem 16 →Solution 4

19 November 2017

• 14:3914:39, 19 November 2017 diff hist −113 AMC 8 →Links

17 November 2017

• 00:4200:42, 17 November 2017 diff hist +158 2010 AMC 8 Problems/Problem 24 →Solution

13 November 2017

• 02:0002:00, 13 November 2017 diff hist 0 2001 AMC 12 Problems/Problem 21 →Solution 1

5 November 2017

• 18:4018:40, 5 November 2017 diff hist −9 2005 AIME I Problems/Problem 13 →Solution 2
• 18:3918:39, 5 November 2017 diff hist +3,300 Composite number No edit summary
• 18:3218:32, 5 November 2017 diff hist +1 2004 AMC 10A Problems/Problem 23 →Solution 1
• 18:3218:32, 5 November 2017 diff hist +2,157 2004 AMC 12A Problems/Problem 19 →Solution

31 May 2017

• 20:4120:41, 31 May 2017 diff hist −38 2017 AMC 10A Problems/Problem 25 →Solution 3 (Shorter and Not Casework)