Across
- 4. multiplication
- 6. %
- 10. subtraction
- 13. greater than or equal to
- 14. /
- 16. ppt
- 17. formed by two rays
- 18. exponent
- 19. infinite line
Down
- 1. >
- 2. ^
- 3. ppm
- 5. [ ]
- 7. addition
- 8. decimal point
- 9. division
- 11. ( )
- 12. remainder calculation
- 15. <