Across
- 3. the symbol of 1/ppm=1/1000000
- 4. 1%=1/100
- 6. the symbol name is minus sign
- 9. the symbol of per-billion
- 11. the symbol of modulo
- 12. the defination of not equal sign
- 13. the definition of approximately equal
- 17. the symbol meaning/definition of power
- 18. the symbol is ( )
- 20. the symbol name is times sign
Down
- 1. the meaning/definition is exponent
- 2. the symbol of per-trillion
- 5. the remainder calculation
- 7. the symbol is ×
- 8. the symbol is +
- 10. the calculate expression inside first
- 14. the symbol is .
- 15. the symbol is <
- 16. the symbol is ÷
- 19. the defination of equals sign