Download Instructor: Kari Fisher Name:

Instructor: Brenda Kurtz
Name:___KEY___________________________
Mat 071
Chapter 1&2 Exam
To receive full credit you must show your work. Fill in the blank.
(each number worth 4 pts.)
1.
Match the properties in the box to their corresponding examples. Write the answer on the line provided. Please note that one
property will not be used.
Distributive Identity
Property of Zero.
Associative Property
Additive Identity
Commutative Property
a.
2+(5 + 3) = (2 + 5) + 3
a. __Associative_________________
b.
5(x + y) = 5x + 5y
b.__Distributive________________
c.
5+0=5
c.__Additive Identity_______________
d.
6∙5=5∙6
d.__Commutative_____________
2.
What are the possible integer values of n if | n | = 5 ?
3.
Determine whether the statement is true or false. If the statement is false, change the inequality (<, >) or the equality symbol
(=) so that the statement is true. Place the true statement in the blank.
4.
2. __5 and (-5)______
a.
 7  8
a. _False: >________
b.
5  5
b. _False: >________
Find each of the following sums and differences.
a.
 17  32
a. _____(-49)_______
b.
 15  ( 2)  14
b. _____(-3)_________
c.
21  5  (4)  1
c. ____11__________
1
5.
6.
Find each of the following products or quotients.
a.
( 3)( 5)( 4)( 2)
a. ___(-120)________
b.
2  4  (6) 1
b. ____48__________
c.
4
0
c. __Undefined______
d.
56
7
d. _____(-8)_________
Find the average of the following set of numbers:
-20, 50, 65, -100, 10
7.
6._____1___________
Sally opened a checking account with $1725. She wrote checks for $12.00, $200.00, and $85.00 and made one deposit of
$497.00. What is her current balance?
7. __1925__________
8.
Today at Sunrise Ski Resort, the temperature was (with the wind chill factor) – 4 degrees at 6 am. By 12 pm the temperature
was 36 degrees. There are 6 lifts operating. What was the change in temperature?
8.___40____________
2
9.
If the product of –7 and –9 is added to the product of 20 and 6, what is the sum?
9. ___183___________
10. Follow the rules for order of operations, and evaluate each of the following expressions.
a.
 1  5   21  7
a. ____(-8)_________
b.
 7  5 2
b. ____(-24)________
c.
12  3  2  8  2 3  5
c.____12___________
11. Combine like terms (if possible) in each of the following polynomials.
a.
3x  7 x  6x
a._____4x__________
b.
a  a 2  a  3a 2  10
b.__4a2 – 10 _______
12. Carefully evaluate the following expression for
3x 2  x  4
x  3 .
12. _20____________
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13. Solve the following equations. You MUST show your work for credit!! (If you have time, check your answers.)
a.
 20  n  7
a. ____(-27)_________
b.
 3x  21  30
b. ____(-3)_________
c.
4   y  10
c. ____6____________
d.
5a  2a  a  30  6
d._____4___________
4