PartyContests.com

Online Math Madness
Browser based mathematics competition for students to gain problem solving experience.
www.virtu-software.com/

Crazy for Math Online Contest
An annual online contest for children to share ideas on how they use math in activities with their families.
crazy4math.com/

International Olympiad in Mathematical Logic
Competition of logic - find statements values in random world of figures.
olympiad.fe.uni-lj.si/

Symmetry Recognition
Year long contest that tests the recognition of Leonardo's group, frieze group and wallpaper group.
olympiad.fe.uni-lj.si/

USA Mathematical Talent Search (USAMTS)
A free mathematics competition available to all high school students in the United States. Interested participants may enter the competition at any time of the academic year.
www.usamts.org/

Florida-Stuyvesant Alumni Mathematics Competition
Internet contest open to students in Palm Beach, Broward and neighboring counties.
www.math.fau.edu/

Mathematical Contest in Modeling (COMAP)
Annual online competition for teams of undergraduates to use mathematical modeling to solve real world problems. Includes information about registration and an archive of past contest questions.
www.comap.com/

International Mathematics Tournament of Towns
Problem solving competition in which towns throughout the world can participate.
www.amt.canberra.edu.au/

MATHmodels
A online team competition where students compete to solve real-life problems using mathematical modeling.
www.mathmodels.org/

International Mathematical Talent Search
A free competitive year-round correspondence program in creative mathematical problem solving at the secondary school level. Open to students in every country.
www.cms.math.ca/