April 17, 2009 in Community Gallery, Problem of the Week by Jim Stoddard
Congratulations to MALEO, ISABELLA, ROHAN, REBECCA, JOSH, VIVIAN EVAN, PATRICIA, and ALEX for getting the correct answer! DR 25 x DR x 25 JDR 625
January 12, 2009 in Problem of the Week by Paul Smith | No comments
Finding arithmetic sequences in dates.