BASIC MATH SYMBOLS

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Across
  1. 3. ‰
  2. 6. <
  3. 10. ( )
  4. 11. ±
  5. 13. ppb
  6. 14. √a
  7. 17. n√
  8. 18. greater than or equal to / less than or equal to
  9. 19. a^b
  10. 20. ÷
Down
  1. 1. .
  2. 2. equal sign
  3. 4. ppt
  4. 5. [ ]
  5. 7. %
  6. 8. remainder calculation
  7. 9. ≈
  8. 12. division/ fraction
  9. 15. *
  10. 16. plus sign