Across
- 3. <
- 4. a^b
- 6. addition
- 11. ppt
- 14. =
- 16. ppm
- 17. division/fraction
- 18. caret, power
- 20. ÷
Down
- 1. subtraction
- 2. ppb
- 5. *
- 7. [ ]
- 8. greater than/ less than or equal to
- 9. %
- 10. remainder calculation
- 12. ≈
- 13. ( )
- 15. ×
- 19. decimal point, decimal separator