Mental Math Sprint

Quick sums to keep you on your toes.

Small rules. Big focus.

1. The 60-second timer starts as soon as the first problem appears. Problems use addition, subtraction, multiplication and division.
2. A correct answer advances automatically and adds 1 point. Submit a wrong answer to lose 1 point and move on. Higher scores unlock harder ranges.
3. Empty or incomplete input keeps the same problem. Use the number keypad or keyboard; repeated and late input does not score.
4. Your result is net points after 60 seconds. Zero and negative scores count; higher is better. Leaving for the background interrupts the round.

No sign-up. Just a little play.