Not-so-easy Crossword

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Across
  1. 4. Greater than zero
  2. 6. Numbers that follow each other in order
  3. 8. Comparison between two quantities
  4. 9. *SUPER HARD* Answer of an equation
  5. 11. A number that is a fraction and the denominator is not a 0
  6. 13. To make something less complicated
  7. 14. Order of operations
  8. 15. The amount of money borrowed or invested
  9. 17. Answer that needs no remainder
  10. 19. Edge/perimeter of a set
  11. 21. The inverse of a number or function
  12. 22. when you multiply 2 or more numbers together
  13. 24. period of time while something happens
  14. 25. A proper fraction and Whole number *2 words*
Down
  1. 1. Out of 100
  2. 2. Rep of a real-world system using math equations
  3. 3. The result of dividing one number by another
  4. 5. An operation that undoes an action of another operation
  5. 7. Can be changed, but not fixed
  6. 10. calculating a product of 2 or more numbers
  7. 12. Needs numerator and denominator
  8. 16. To change a measurement from one unit to another
  9. 18. 2 numbers that is the same distant from 0 but on opposite sides
  10. 20. Not changing or varying
  11. 23. The starting point a coordinate where x and y intercept