Come join or root for your favourites!

This is a unique type of event! Math games are hosted online and all participants play in real-time! You can join from all over the world by using a smart device and internet. Playing in math game day is an engaging experience, offering enthusiasm and excitement. Even spectators feel the thrive when watching online!

Quick and engaging

The fastest player wins! Every team plays 3 games for a total of 20 minutes.

Real-time action

Every game is against another team in real-time. You can see the results instantly.

Live online spectators

Classmates, parents and school staff can root for their favourite players online!

Feedback from the last event

"Students were full of competitiveness that I could even hear them solve tasks :)"

“A quick and fun way to compete with other students in math.”

“I like that other students could also have a look at the results. Also, I didn't need to leave the school to participate.”

“It's great to compete against other schools and see the results instantly.”

Age groups in each country


Country Age group Game group
Finland 1st – 12th grade Eastern European games
France CP – terminale Central European games
Polska 1 klasa – 4 klasa liceum Central European games
Sverige Årskurs F – Tredje ringen Central European games
Deutschland 1. klasse – 12. klasse Central European games
Italia Prima elementare – Quinto superiore Central European games
Norge 1. klasse – VG3 Central European games
Portugal Escola Primária – Escola Secundária Central European games
Island Year 1 – Year 12 Central European games


Watch a short introduction video




Game day overview


  • Teams of 5 members from one class can participate in the event. (you can register multiple teams if you’d like)
  • A team can consist of more than 5 players, but the total score of the team will be a sum of 5 best players.
  • The competition is for K-12 students in Europe.
  • For all teams, the games take place on March 15th and last for about 20 minutes.
  • The Central European games start for K-2nd grade at 10:00, 3rd-4th grade at 10:30 and 5th-12th grade at 11:00. (CET)
  • For Eastern Europe, the games start for K-2nd grade at 9:00, 3rd-4th grade at 9:30 and 5th-12th grade at 10:00. (EET)
  • Click HERE to see your students’ grade and game start time.
  • Each team competes with other teams of the same grade level.
  • You can participate online and students can even solve tasks at their school.
  • Every player needs a smart device or a computer with internet connection.
  • Each team plays three games against different opponents.
  • Classmates, teachers and parents root for their favourite players online!
  • Students’ teams must be registered by their teacher.
  • You can practice for the event at 99math.
  • Read more about the rules here
  • See the results of the previous tournament here.



Math game day is being organized by 99math (a startup). We wish to popularize math and make it more engaging for a bigger audience. We also try to spark discussion about math skills between students and their parents.


Practice in class


99math is a fun classroom game to practice and revise math skills. It is so engaging for students that they even ask the teacher to play again. The platform is online and you can use it for free. Try it at your next lesson at: www.99math.com