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Calcrostic of the Day

abc /  b = cd
  / -  + -  +
 cd - ca =  b
  = =  = =  =
  b + cd = ce
What is This? | How to Solve It?

Yesterday's Solution

 54 - 18 = 36
  + /  + ×  -
162 /  6 = 27
  = =  = =  =
216 / 24 =  9