Across
- 3. example 4 < 5, 4 is less than 5
- 6. example √9 = ±3
- 8. %
- 10. example 6 ÷ 2 = 3
- 12. equals sign
- 15. ppb
- 16. approximately equal
- 18. times sign
- 19. division / fraction
- 20. power
Down
- 1. example 3√8 = 2
- 2. not equal sign
- 4. both plus and minus operations
- 5. example 5 > 4, 5 is greater than 4
- 7. example 10‰ × 30 = 0.3
- 9. remainder calculation
- 11. ppm
- 13. both minus and plus operations
- 14. example 2 ^ 3 = 8
- 17. example 1 + 1 = 2