

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 


