Math symbols

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Across
  1. 4. formula is n×n×n
  2. 5. it does addition
  3. 6. used to indicate a number smaller than the other
  4. 8. is does division
  5. 10. it does subtraction
  6. 12. NOT equal
Down
  1. 1. user to indicate a number bigger than the other
  2. 2. used to indicate a number equal than the other number
  3. 3. NOT equal too
  4. 7. it does multiplication
  5. 9. it increases fast
  6. 11. formula is n×n