international
World Maths Day 2010
The annual free online math competition is back! World Maths Day is an international competition open to all children from age 5 to 18, and is a great way to get competition-oriented kids to work their math skills.
The official competition is during a 48 hour period that includes March 3 worldwide, but kids can play head-to-head with children from all over the world anytime.
A description of the contest from the official website:
