My kids LOVE this so I thought I would share! World Math Day is March 3, 2010.
You can sign up now HERE and they can start practicing.
Students play at home and at school against other students around the world in live games of mental arithmetic. Each game lasts for 60 seconds and students can play up to 500 games, earning points for each correct answer. The students who answer the most questions appear in the Hall of Fame. Students cannot select their level but will move up as they progress. There are different age groups from ages 5 – 18!
And, it’s completely FREE!