World Math Day falls on March 4th this year. Students aged 5 to 18 can take part and whole classes can also register for the online math questions and fun! Students play against each other in mental arithmetic games. They play in real time with students from all over the world. Each game lasts for 60 seconds and they can play as many games as they wish. The questions are appropriately leveled for different ages and abilities. Also open to school aged private individuals and homeschoolers. Be sure to register early to be a part of World Math Day this year.
p.s. thanks to Deb Russell