Caribou Contests

Caribou in Covid: Contests are running online as usual. Check out the FAQ for further questions.

Check out our online math learning resources to keep you busy and prepared for the next contest!

We wish you all a safe, happy, and healthy holiday with friends & family.

Click to go to the Chess games page to practice for the January contest.

Click the image to go to the poster gallery

Our math contests and content are offered in 7 languages.
Click for help in your language.

Students can access all content, even the contests, from home or school.
Click to see common COVID-related questions.

You've mastered Chomp, but can you win FOUR games at the same time?! Try isotropic Chomp in this impartial combinatorial game.

Calcrostic of the Day

abc / a = bde
  - / / ×   +
fda / f = bde
  = = = =   =
fda / e = edf

80 + 80 = 160
 / /  / /   /
 2 ×  4 =   8
 = =  = =   =
40 - 20 =  20