Flag




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

Math Games, Practice Tests, and Challenges | Caribou Contests

Today's Calcrostic Puzzle

  a +  aa = ab
  × ×   × ×  -
cdb /   e = cf
  = =   = =  =
agf - geh = gh
What is This? | How to Solve It?

Yesterday's Solution

  2 × 131 = 262
  + +   - -   /
131 - 129 =   2
  = =   = =   =
133 -   2 = 131