Caribou Contests: Math made fun, for everyone!

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

Math Games, Practice Tests, and Challenges | Caribou Contests

Next interactive game question for all grades: Dots

You'll need to connect the dots to beat the computer during this contest!

Practice for the interactive Calcrostic challenge

Flex your math muscles and sleuthing skills!
For more puzzles, pick up the Puzzle Book in our Online Shop!

The Online Shop is now in Turkish!

Our online shop now accepts credit card payments in Turkish Lira. Anyone can access our online shop in Turkish by selecting "Language" in the menu and picking Turkish.

Free Math Resources and Contest Participation for Ukrainian Children

Students from Ukraine can try Caribou content for free. Go to the Online Shop for details.

Tired of waiting for the next Caribou Contest?

Purchase access to our math resources to keep you busy and prepared!

Caribou during COVID?

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

Random Game: Mazes

When you learn the properties of these puzzles, you'll be aMAZEd at how quickly you can solve them!

About Caribou

Register

Upcoming Contests

Results

Games

Take a Past Contest

Student Sign In

Caribou Coordinator Sign In

Shop

Help

Parents

Vouchers

Today's Calcrostic Puzzle

 a × bcb = decc
 + ×   / /    -
ca ×  cf = dbgd
 = =   = =    =
gh ×   e =  bfd

What is This? | How to Solve It?

Yesterday's Solution

128 /  4 = 32
  + /  × ×  -
384 / 16 = 24
  = =  = =  =
512 / 64 =  8