Contact Us

Caribou News

Get Adobe Flash player

About Caribou

The Caribou Mathematics Competition is a world wide online contest that is held six times throughout the school year. Each of these days, five contests are offered, one for each of the grade levels 3/4, 5/6, 7/8, 9/10 and 11/12.

The Caribou Cup is the series of all Caribou Contests in one year. Each student's ranking in the Caribou Cup is determined by their performance in their best five of six contests through the school year.

All of our previous contests are available for free online as practice tests.


The goals of this project are to:

Upcoming Contests

There are no upcoming contests scheduled at this time.

Please check back later. The schedule of contest for the upcoming school year will be released soon.

How to Participate

The following steps give an overview of how to participate:

More details can be found here.


Cash prizes are given out to the top performing students and schools in the Caribou Cup. Additionally, contest and Caribou Cup certificates can be printed after each test is marked. More information regarding prizes and a sample certificate can be found here.

Calcrostic of the Day

Calcrostics are a trademark in a Caribou Contest - one appears in every contest.

Today's Calcrostic Puzzle

abc - cde = cde
  ÷ ÷   ÷ ÷   ÷
  a ÷   c =   e
  = =   = =   =
fga + fga = efb
What is This? | How to Solve It?

Yesterday's Solution

130 - 120 = 10
  - ÷   ÷ ×  +
 80 ÷   5 = 16
  = =   = =  =
 50 -  24 = 26

Other Resources

Games, Quizzes, etc