Maths

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Across
  1. 3. Symbolises if a number is negative or not
  2. 7. 1/3
  3. 8. 0.1111...
  4. 10. The factors of a number
  5. 11. A long narrow mark
  6. 15. To add repeatedly
  7. 18. >
  8. 19. 0.14285714285714...
  9. 20. A _ of a litre is 1 cup
  10. 23. Nothing
  11. 24. The upper number in fractions
Down
  1. 1. Most common way to cut a pizza
  2. 2. Synonym for addition
  3. 4. An operation marked with an x
  4. 5. All of, entire
  5. 6. They can be Roman
  6. 9. 50%
  7. 12. Abbreviated to No.
  8. 13. 20%
  9. 14. 0.1666...
  10. 16. A number that isn't whole
  11. 17. Synonym for subtraction
  12. 21. Synonym for addition, usually with money
  13. 22. 10%