Foundations

Casual arithmetic practice. Earn activity points toward your Foundations rating.

• Choose Your Mode

  Pick how you want to race. Compete for ratings, practice at your own pace, learn new problem types, or take on a challenge.

• Leaderboard

  See the top math racers worldwide. Track rankings, biggest gainers, and the fastest mental arithmetic players.

• Learn Mental Math

  Practical guides to mental math and the ideas behind Math Racer — fast two-digit addition, the times tables, and how competitive ELO ratings work.