Brianna's crossword puzzle

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Across
  1. 5. a natural number with zero
  2. 10. negative or positive values that don't have a decimal
  3. 12. favorite teacher
  4. 14. multiplying or adding a number by it's opposite to cancel out
  5. 17. multiply a value in an expression in parenthesis
  6. 18. a decimal that stops at a certain point
  7. 19. an expression with unknown values usually substituted with letters
  8. 22. adding zero to a number to end up with the same value
  9. 23. a part of a whole number
  10. 24. always be written as a fraction of integers
  11. 26. two of the same number can go into that number
  12. 27. a rational number multiplied by itself
  13. 28. all numbers
  14. 29. numbers between whole numbers
  15. 30. order does not matter
Down
  1. 1. never be written as a fraction of integers
  2. 2. a irrational number that can't be multiplied by itself to get the number you need
  3. 3. a fixed value
  4. 4. how far a number is from zero
  5. 6. a letter used to substitute a number in an algebraic expression
  6. 7. the relation between two expressions that are not equal
  7. 8. any number multiplied by 1 to get the same value
  8. 9. a number written as a multiplier in a variable expression
  9. 11. a number being multiplied by another number
  10. 13. a decimal that repeats itself
  11. 15. grouping does not matter
  12. 16. a number usually used in finding the circumference, volume, area of a circle and it is delicious
  13. 20. adding the opposite number to cancel out
  14. 21. multiply a number by it's reciprocal to get 1
  15. 25. whole numbers that doesn't include zero