Math Racer — Free Online Multiplayer Math Game

Race against players worldwide in fast-paced math battles. Practice mental arithmetic — addition, subtraction, multiplication, division — and climb the leaderboard. No account required.

What is Math Racer?

Math Racer is a free website that guides you through the whole math curriculum, from basic arithmetic to calculus, in a way that is engaging and measurable. Every skill has its own rating that moves as you play, so you can see yourself improving and always know what to work on next.

It is built for climbing and for keeping your footing. Work upward one skill at a time, or come back to refresh the basics and keep your foundation solid. Race other players in real time, practice alone at a difficulty that adapts to your ratings, or learn a new topic with step-by-step guidance.

Every kind of practice is backed by written explanations. Our Learn section teaches mental techniques such as left-to-right addition, the nines trick and estimation, and our skill guide library gives a worked, step-by-step method for each problem type in the curriculum.

Ways to play

Competitive — head-to-head races with a rating for each subject.
Foundations — short arithmetic practice sets that guests can play.
Progression — endless practice matched to your saved skill ratings.
Blitz — 40 times-table or arithmetic problems against the clock.
Daily Race — the same problems for everyone, a new set each day.
Explorer — guided practice, hints and worked solutions.

Start learning

Want to know more? Read about Math Racer and our editorial standards.