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Math Games, Practice Tests, and Challenges | Caribou Contests

Today's Calcrostic Puzzle

  a × bcd = aed
  + +   - -   /
bcd - baf =   a
  = =   = =   =
bca -   a = bcd
What is This? | How to Solve It?

Yesterday's Solution

2160 / 27 =  80
   - /  / ×   +
1440 /  9 = 160
   = =  = =   =
 720 /  3 = 240