Math Crossword

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Across
  1. 1. -
  2. 5. Advanced Math
  3. 7. Unit of Math (x)
  4. 9. Corners
Down
  1. 1.
  2. 2. What is math?
  3. 3. 100 > 10
  4. 4. x or y
  5. 6. 3.14
  6. 8. 10 < 100