2 January 2017

• 15:3715:37, 2 January 2017 diff hist −1 m 2012 AMC 12B Problems/Problem 23 →Solution

21 February 2015

• 12:0612:06, 21 February 2015 diff hist +27 m 2012 AMC 10B Problems/Problem 25 →Solution 2
• 12:0512:05, 21 February 2015 diff hist +23 m 2012 AMC 10B Problems/Problem 25 →Solution 1

16 February 2015

• 18:2418:24, 16 February 2015 diff hist +1 m 2014 AIME I Problems →Problem 15

2 February 2015

• 18:3618:36, 2 February 2015 diff hist +3 m 2014 AMC 10A Problems/Problem 24 →Solution 2
• 12:3712:37, 2 February 2015 diff hist −1 2014 AMC 10B Problems/Problem 17 No edit summary

1 April 2014

• 14:5014:50, 1 April 2014 diff hist −8 1987 AIME Problems/Problem 4 →Solution