I like to train high schoolers for Math Competitions
所有跟帖:
• I tried. I talked to a math circle. -sweetptt- ♂ (189 bytes) () 03/18/2012 postreply 10:40:02
• You are better than me, and I have not tried yet. -naive2- ♀ (141 bytes) () 03/18/2012 postreply 13:31:15