Algebra Vocabulary 1.1 - 1.3

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Across
  1. 5. a(b + c) = ab + ac
  2. 7. example or case that proves a conjecture or theory wrong
  3. 9. (a + b) + c = a + (b + c) or (ab)c = a(bc)
  4. 11. includes all rational and irrational numbers
  5. 12. has 2 expressions separated by an equal sign
  6. 15. numbers that can be written as a quotient of integers
  7. 16. numbers that cannot be written as the quotient of integers
  8. 18. distance around a figure
  9. 19. 1, 2, 3, ...
  10. 20. ..., -3, -2, -1, 0, 1, 2, 3, ...
Down
  1. 1. 0, 1, 2, 3, ...
  2. 2. number that can be added to a given number to make zero
  3. 3. points that lie on a straight line
  4. 4. a + b = b + a or ab = ba
  5. 6. multiplicative inverse(found by flipping the fraction)
  6. 8. mathematical phrase that uses numbers & letters
  7. 10. If a = b and b = c, then a = c
  8. 13. letter or symbol used to represent a number
  9. 14. If a = b, then b = a
  10. 17. a = a