1.   The Ride Away Bike Shop has 27 mountain bikes and 34 road bikes. Find the expression that represents the number of tires in the Ride Away Bike Shop.
    A. 27 × 27 + 34 × 34 B. 2(27) × 2(34)
    C. 34 + 27 D. 2(27 + 34)
    Hint

  2.   On average, letter carriers deliver approximately 670 million pieces of mail each day. About how many pieces of mail do they deliver in 6 days?
    A. 4,020 B. 4.02 billion
    C. 4.02 million D. 420 billion
    Hint

  3.   Which property represents 5 × (6 × 3) = (5 × 6) × 3?
    A. Distributive Property B. Associative Property of Multiplication.
    C. Associative Property of Addition. D. Commutative Property of Multiplication
    Hint

  4.   Rewrite a + (b + c) using the Associative Property.
    A. (a + b) + c B. (c + b) + a
    C. ab + ac D. a + b + c + 0
    Hint

  5.   Find the property that is shown by y + z = z + y.
    A. Commutative Property of Addition B. Commutative Property of Multiplication
    C. Identity Property of Addition D. Associative Property of Addition.
    Hint



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