BASIC MATH SYMBOLS

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Across
  1. 3. ppt
  2. 4. ‰
  3. 5. <
  4. 8. decimal point, decimal separator
  5. 10. ppm
  6. 14. not equal sign
  7. 15. a^b
  8. 19. plus sign
  9. 20. √a ⋅ √a = a
Down
  1. 1. ppb
  2. 2. /
  3. 6. -
  4. 7. exponent
  5. 9. equal sign
  6. 11. times sign
  7. 12. %
  8. 13. calcute expression inside first
  9. 16. >
  10. 17. []
  11. 18. remainder calculation