Basic Math Symbols

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Across
  1. 1. Sign, means subtraction/ -
  2. 6. means approximation/ ≈
  3. 8. 1% = 1/100
  4. 10. means greater than/ >
  5. 12. means to calculate expression inside
  6. 13. means both minus and plus operations/ ±
  7. 15. means equality/ =
  8. 16. root, √a ⋅ √a = a
  9. 18. means exponent/ a^b
  10. 21. Line, means to fraction and division/ —
  11. 22. ( )
Down
  1. 2. means inequality/ ≠
  2. 3. means to calculate expression inside first/ [ ]
  3. 4. means both plus and minus operations/ ±
  4. 5. decimal point
  5. 7. means to divide/ ÷
  6. 9. means to multiply/ *
  7. 11. means greater than or equal to/ ≥
  8. 14. means only less than/ <
  9. 17. 1ppm = 1/1000000
  10. 19. means remainder calculation
  11. 20. means addition/ +