How to play Math Race
Twelve sums against the clock, from addition to percentages and squares.
Rules
- You have 9 seconds for each sum.
- Being right and being fast both count.
- Right answers in a row give a bonus.
- The last sums are the hardest.
Tips to win
- Estimate: some answers are clearly too big or too small.
- Check the last digit of the result. It rules out wrong answers fast.
- 25% is a quarter and 75% is three quarters.
Ranked play
Online you play 1–3 people of a similar rating.