Exploring Basic Math Symbol

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Across
  1. 4. is an expression that means parts per thousand.
  2. 5. [ ]
  3. 8. being the same in quantity, size, degree, or value
  4. 10. ≤
  5. 11. *
  6. 14. ppt
  7. 17. ppm
  8. 18. a^b
  9. 19. The process or skill of multiplying
  10. 20. the process of finding the total, or sum, by combining two or more numbers.
Down
  1. 1. Remainder calculation
  2. 2. ( )
  3. 3. >
  4. 6. √a
  5. 7. ⋅
  6. 9. %
  7. 12. ppb
  8. 13. /
  9. 15. ÷
  10. 16. ≠