1.   An example of the Commutative Property of Addition is ______________.
    A. 2 + (4 + 6) = (2 + 4) + 6
    B. 2 + 4 = 4 + 2
    C. 2 · 4 = 4 · 2
    D. 2(4 · 6) = (2 · 4)6
    Hint

  2.   Simplify (p + 16) + 24.
    A. 40p B. p + (16 · 24)
    C. p + 40 D. 16p + 24
    Hint

  3.   Simplify 6 + b + 3.
    A. 9 B. b + 9
    C. 9b D. 3 + b
    Hint

  4.   Simplify (r + 6) + 27.
    A. 6r + 27 B. r + 33
    C. r + 21 D. 33r
    Hint

  5.   Which is not a valid property?
    A. Associative Property of Multiplication
    B. All of these are valid.
    C. Associative Property of Addition
    D. Associative Property of Subtraction
    Hint