Crossword Puzzle Project

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Across
  1. 2. a+b = b+a
  2. 4. counting numbers
  3. 8. repeated addition
  4. 10. the multiplicative inverse of a number
  5. 13. how many digits are in base 2?
  6. 16. a group of distinct objects; well-defined
  7. 17. describes where a number is in a sequence
  8. 20. all whole numbers and their opposites
  9. 21. more than two factors
  10. 26. numbers divisible by two
  11. 27. exactly two factors, one and itself
  12. 28. is 81 square rooted a perfect square?
  13. 29. sets that have no members in common
  14. 31. sequence of digits identifying something
Down
  1. 1. infinite set that starts at 0
  2. 3. the distance away from zero
  3. 5. the inverse operation of subtraction
  4. 6. is 896 divisible by 6?
  5. 7. a set with nothing in it
  6. 9. a binary system
  7. 11. square root of 16 = 4, of 9 = 3
  8. 12. the inverse operation of addition
  9. 14. numbers not divisible by 2
  10. 15. Convert 110111 from base 2 to base 10
  11. 18. all rational and irrational numbers
  12. 19. the result from the addition of 2 numbers
  13. 22. a number which is added to another
  14. 23. all the members two sets have in common
  15. 24. how many numbers are in a set
  16. 25. repeated subtraction
  17. 30. the merging of two sets