crossword puzzle

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Across
  1. 3. number set that includes the number zero and all of the natural numbers as well as their opposites
  2. 6. 3/5 of 25 is
  3. 10. least common multiple of 5 and 10
  4. 12. 2^2x3^1=____
  5. 14. A={1,3} B={2,3,4} A∩B={____}
  6. 15. 35/7=5 and 5 is the ____
  7. 16. a is even if a is ____ by 2
  8. 18. everything in the universe that is not in the set
  9. 20. solution: 0/0=____
  10. 23. the sum of a number and it's ____ is zero
  11. 29. the ____ of a/b is b/a
  12. 31. property: 2(x+4)=2x+8
  13. 32. axb=c in which c is a ____ of a and b
  14. 33. -3/5 is a ___ fraction
  15. 35. is an ____ number
Down
  1. 1. a number that is neither prime nor composite
  2. 2. the number of parts in the whole (a/b in which b is the ____)
  3. 4. if the quotient has a remainder of 0 then it is ____
  4. 5. there are 10 ____ in base 10 (0,1,2,3,4,5,6,7,8,9)
  5. 7. 4+0=4 4x1=4 0 and 1 are ____ elements
  6. 8. a phone number is an example of a ____ number
  7. 9. property: 6x5x3=3x6x5
  8. 11. a/b is in simplest form if a and b have no common ____
  9. 13. a ____ number refers to how many things are in a set
  10. 14. the first prime number and only even number
  11. 17. 1.333... is an example of ____ numbers
  12. 19. the greatest common factor of 16 and 24
  13. 21. zero as a denominator is ____
  14. 22. the number of parts we have (a/b in which a is the ____)
  15. 24. how many factors of 12 are there
  16. 25. set A= {m,a,t,h,} n(A)=____
  17. 26. axb=c in which a and b are ____
  18. 27. 111 in base 2 is ____ in base 10
  19. 28. in order to convert base 2 to base 10 always ____
  20. 30. value: the distance from zero to a number
  21. 34. exactly 2 factors- the number itself and 1