User contributions for Kdo
23 November 2009
- 18:1818:18, 23 November 2009 diff hist +57 N 1993 AJHSME Created page with 'Problem: A checkerboard consits of one-inch squares. A s'
- 11:2111:21, 23 November 2009 diff hist −5 2002 AMC 10B Problems/Problem 9 →Solution