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Math Games, Practice Tests, and Challenges | Caribou Contests

Today's Calcrostic Puzzle

aab +   c = acd
  × -   + +   -
  c + aae = aab
  = =   = =   =
cfe / aab =   c
What is This? | How to Solve It?

Yesterday's Solution

135 - 108 = 27
  - /   / ×  +
 54 /   3 = 18
  = =   = =  =
 81 -  36 = 45