1.11: Chapter Test
 Perform the indicated operations. If possible, simplify all answers.















 State the property of addition or of multiplication that is shown in each example.











 Tom has $40 to spend for groceries each week. His grocery list is shown below. If he is shopping on “NO TAX DAY”, will he have enough money to buy his groceries? If he has enough money, how much change will he receive? If he doesn’t have enough money, how much more money does he need?
Groceries  Price 

2 dozen eggs  $1.98/dozen 
1 loaf of bread  $2.49 
4 lb. of ground beef  $2.16/lb 
2 qt. milk  $1.90/qt 
3 lb. of apples  $1.99/lb 
6 lemons  $0.79 for 3 
2.5 lb of tomatoes  $1.49/lb 
Dish detergent  $3.35 
2 bags of potatoes  $3.49/bag 

 In each of the following graphs, find the error(s). Identify each error and explain why each error exists.
 Draw the correct graph to represent the given set notation.

{x4<x≤9,x ε W} 
{x−3≤x≤2,x ε I}

 Show all the necessary steps to convert 3.246464646 to the form
ab .  A box of chicken nuggets weighs
158lb . How many pounds will 20 cartons of 12 boxes each weigh?  The exterior wall of a small office building under construction is built of
34−in . paneling,58−in . fire code sheetrock,534−in . studs,12−in . plywood sheathing,114−in . insulation board, and56−in . exterior surfacing. What is the total thickness of the wall?
Answers to test
7 
16 
42 
12 
3 

18.24 
30 
0.536 
24.48 

6.545 

11 
10 

Associative property of addition 

Inverse property of multiplication 

Commutative property of addition 

Inverse property of addition 

Identity property of multiplication 

Closure property of multiplication 
Groceries  Price  


2 dozen eggs  $1.98/dozen 

1 loaf of bread  $2.49 

4 lb. of ground beef  $2.16/lb 

2 qt. milk  $1.90/qt 

3 lb. of apples  $1.99/lb 

6 lemons  $0.79 for 3 

2.5 lb of tomatoes  $1.49/lb 

Dish detergent  $3.35 

2 bags of potatoes  $3.49/bag 
The total cost of Tom’s groceries is
 (a) (i)
{x4<x≤9,x ε W} Errors: The dot above the 4 should be an open dot becausex>4 . The dot above the 9 should be a closed dot becausex≥9 The dots should NOT be joined with a line because the variable belongs to the set of whole numbers.{x4<x≤9,x ε W} (ii){x−3≤x≤2,x ε I} Errors: The line with the arrow should not be on the graph because the variable is between two numbers. The line is only used if the variable belongs to the real number system.{x−3≤x≤2,x ε I}
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