Basic Math Symbols

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Across
  1. 6. <
  2. 9. Decimal point, decimal separator
  3. 10. []
  4. 13. ≠
  5. 15. √a
  6. 16. √a
  7. 18. ≥
  8. 20. —
Down
  1. 1. ×
  2. 2. a^b
  3. 3. 3√a
  4. 4. Calculate expression inside first
  5. 5. 4√a
  6. 7. Remainder calculation
  7. 8. /
  8. 11. *
  9. 12. −
  10. 14. 1% = 1/100
  11. 17. ⋅
  12. 19. 2³ = 8