BASIC MATH SYMBOLS

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Across
  1. 3. -
  2. 4. ^
  3. 7. %
  4. 9. x
  5. 15. =
  6. 16. ppm
  7. 17. /
  8. 18. ppt
  9. 19. [ ]
  10. 20. exponent
Down
  1. 1. ( )
  2. 2. •
  3. 5. .
  4. 6. <
  5. 8. less than or equal to
  6. 10. *
  7. 11. approximation
  8. 12. division/fraction
  9. 13. ppb
  10. 14. mod