Across
- 2. []
- 7. less than or equal
- 8. ppt
- 9. sign =
- 10. decimal point, decimal separator
- 12. 1%=1/100
- 15. greater than or equal to
- 17. sign 2 × 3 = 6
- 18. +8 or -2
Down
- 1. ‰
- 3. inequality less than
- 4. sign +
- 5. slash /
- 6. division
- 10. ppb
- 11. ppm
- 12. exponent
- 13. *
- 14. ()
- 16. remainder calculation