The All-Time Greatest MATHCOUNTS Problems is a collection of around 140 problems (and solutions) from MATHCOUNTS state and national competitions. Included are the very best problems from the Sprint, Target, Team, Countdown, and Masters Rounds.

Many of the top problem solvers in the United States got their start with MATHCOUNTS, including the founder of this site, as well as many of the instructors and assistant instructors in the Art of Problem Solving school.