Basic Math Symbols

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Across
  1. 3. —
  2. 4. 1ppb = 1/1000000000
  3. 8. modulo
  4. 11. ×
  5. 12. approximately equal
  6. 15. 1% = 1/100
  7. 16. plus sign
  8. 18. power
  9. 19. [ ]
  10. 20. not equal sign
Down
  1. 1. ab
  2. 2. remainder calculation
  3. 5. decimal point
  4. 6. calculate expression inside first
  5. 7. /
  6. 9. minus sign
  7. 10. per-million
  8. 13. a^b
  9. 14. *
  10. 17. equal sign