Fill in the blanks to make each statement true.

1. To add like monomials, add their numerical __________ and keep the __________.

2. To add two polynomials, combine any __________ contained in the polynomials.

3. For any number x and y, x + y = __________ by the Commutative Property.

4. _____________ are two or more terms that contain the same variable(s) and exponents.

5. The expression − is equivalent to __________.

6. To subtract 3 − 4 from

2 − 2 + 5, add ______________ to

2 − 2 + 5.

7. To subtract polynomials, remove parenthesis and combine ________________.

8. If two polynomials are subtracted in vertical form, the bottom polynomial is called the

______________, and the top polynomial is called the ______________.​