About Math Racer
Math Racer is a free website for practicing math at speed, on your own or against other players. It covers everything from basic arithmetic to calculus, and pairs every kind of practice with written explanations so you learn why a method works, not only how fast you can apply it.
What you can do here
- Race other players. Competitive matches pair you with an opponent on the same problems; the first to finish accurately wins. Each subject has its own rating, so a strong algebra player can still be a beginner at geometry.
- Practice at your own pace. Foundations gives guests short arithmetic sets, and Progression adapts problem difficulty to the skill ratings you have built up.
- Learn new topics. Explorer introduces one problem type at a time with a step-by-step solution guide, hints and a worked example before you try problems yourself.
- Test your endurance and speed. Marathon walks the curriculum with ten lives, Blitz sets a 40-problem sprint, and the Daily Race gives everyone the same problems each day.
- Play with friends. Private races use a room code, so you can race people you know without affecting ratings.
Why it exists
Most math practice tools fall into one of two camps: worksheets that are accurate but dull, or games that are fun but shallow. Math Racer tries to sit in between. Racing adds the pressure and feedback that make fluency stick, while the curriculum underneath is organized by skill, so practice always has a point. Each skill is a node with prerequisites, which lets the site suggest what to practice next instead of leaving you to guess.
The curriculum
Problems are organized into subjects including arithmetic, algebra, geometry, trigonometry, number theory, probability, statistics, discrete mathematics, linear algebra, calculus, multivariable calculus and differential equations. Within each subject, problem types are arranged from beginner to advanced, and many have a written solution guide with the steps, the idea behind them and a worked example. You can browse those guides in our skill guide library, and read longer articles on mental techniques in Learn.
How the problems are made
Answers are checked automatically against the stored solution, so the site marks you right or wrong consistently regardless of who else is playing. Our editorial standards page explains how we write and review the explanatory content, and how to report a mistake.
Accounts, privacy and cost
Many modes work without an account. Creating one is free and lets us save your ratings, progress and history. The site is supported by advertising on its written guide pages, and an optional paid plan, Math Racer Plus, adds advanced statistics and extra visual themes. Plus never sells a competitive advantage. Details of the data we collect and the ads we show are in our privacy policy.
Who it is for
Students who want to get faster and more accurate at the math they already study, adults refreshing skills they have not used in years, parents and teachers looking for short practice activities, and anyone who just enjoys competing. The site is not designed for children under 13, and we do not knowingly collect their personal information.
Get in touch
Questions, corrections and suggestions are welcome. See our contact page.