BASIC MATH SYMBOLS

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Across
  1. 5. ≈
  2. 7. division/ fraction
  3. 11. ‰
  4. 15. n√
  5. 16. ppb
  6. 17. a^b
  7. 18. √a
Down
  1. 1. greater than or equal to / less than or equal to
  2. 2. <
  3. 3. ppt
  4. 4. *
  5. 6. plus sign
  6. 8. equal sign
  7. 9. %
  8. 10. ( )
  9. 12. ±
  10. 13. [ ]
  11. 14. remainder calculation
  12. 19. ÷