Basic Math Symbols

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Across
  1. 6. (=)equality
  2. 7. approximation
  3. 9. subtraction
  4. 11. stand for multiplication, also known as star
  5. 15. exponent
  6. 16. both minus and plus operations
  7. 17. [ ]
  8. 18. ()
  9. 19. addition
  10. 20. division sign
Down
  1. 1. %
  2. 2. remainder calculation
  3. 3. ×
  4. 4. line division/fraction
  5. 5. decimal point
  6. 8. a^b
  7. 10. both plus and minus operations
  8. 12. √a
  9. 13. /
  10. 14. (ppm)a unit used to describe very small concentrations of a substance in a larger solution