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57129 resources
Projects from the Math Forum presenting weekly interactive math challenges to accumulate points for bronze, silver and gold prizes. Individual or class participation. Paid membership required to view problems.
A collection of puzzles, with hints and full solutions. Compiled by George Moody.
Weekly math problem and archive from Professor Stan Wagon for first-year college students presented by the Math Forum.
Math problems and solutions from Math Central.
Problem archive and puzzle links.
Past archive and solutions. Receive help from mentor. Paid membership required to view problems.
Past archive and solutions. Receive help from a mentor. Paid membership required to view problems.
Posted by the Mathematics Department of Bilkent University.
Weekly math challenge with past problem archives and solutions.
Past problems and solutions, student recognition. Paid membership required to view problems.
A weekly interactive project for elementary school mathematics. Past problems, solutions, and student recognition. Paid membership required to view problems.
A monthly on-line competition hosted by researchers at IBM.