Expression unit by Gabby

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Across
  1. 3. a monomial separated by addition or subtraction signs
  2. 5. parentheses change
  3. 7. 2 terms
  4. 8. you get what you started with (mirror image)
  5. 9. cancels out
Down
  1. 1. order changes
  2. 2. any algebraic expression (ussualy used for more than 4 terms)
  3. 4. has both addition and mult. in the same example
  4. 6. 1 term