Mathematics Fun!

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Across
  1. 2. mathematical sentence
  2. 4. does not form straight line
  3. 6. the C in the pythagorean theorem
  4. 7. 3.14
  5. 8. straight line
Down
  1. 1. can be made as a fraction
  2. 3. cannot be made as a fraction
  3. 5. opposite of horizontal
  4. 6. opposite of vertical