World Maths Day

World Maths Day (World Math Day in American English) is an online international mathematics competition on third Friday in September. powered by Mathletics (a learning platform from 3P Learning, the same organisation behind Reading Eggs and Mathseeds). Smaller elements of the wider Mathletics program effectively power the World Maths Day event. The first World Maths Day started in 2007. Despite these origins, the phrases "World Maths Day" and "World Math Day" are trademarks, and not to be confused with other competitions such as the International Mathematical Olympiad or days such as Pi Day. In 2010, World Maths Day created a Guinness World Record for the Largest Online Maths Competition. World Maths Day will next take place on 25 March 2026.