Practice Quiz 1

Math 097 Sample Quiz #1 (R2,3,4,1,1 )
Instructions: Show all your work in the space provided and clearly indicate your final answer.
Use proper mathematical notation (such as equal signs between things that are equal!)
Any fractions should be in simplified form (lowest terms).
1. Quick answer:
a) The opposite of  2.4 is
b) The multiplicative inverse of  4 is _______
c) Evaluate: | 7  11 |  | 4  3 |
d) The number 6 is a rational number. TRUE
FALSE (Circle one only)
2. [1 pt] The exact distance between  3 and 5.25 on the number line is ________
3. Evaluate the following:
 3  2 
a) (5)(1)    
 2  9 
b)
c) 3 16  (1  3) 2  5  2  3 =
d)
4 7


5 15
2 | 4  (7) | 3
5 52  42

4. Evaluate the expression
1  3a  | 2  a 2 |
for a  2 .
a3  6
5. Match the operations and the names of the properties by placing the correct number to the left of the letters
AH. (Not all properties on the right will necessarily be used; some may be used more than once.)
___A) –3  (2 + 5) = –3  (5 + 2)
1. Associative property of multiplication
___B) 3  (2 + 5) = (3  2) + (3  5)
2. Additive identity property
___C) 4 + (–3 + –1) + 2 = (4 + –3) +( –1 + 2)
3. Multiplicative inverse property
___D) 5 + ( 8 + 0) = 5 + 8
4. Additive inverse property
___E) -4  1 = -4
5. Commutative property of addition
___F) 6 + (4 + –4) = 6 + 0
6. Associative property of addition
___G)
3
2
 23  1
___H) 3 + (2 + –5) = (3 + 2) + –5
7. Distributive property
8. Multiplicative identity property
9. Commutative property of multiplication
6. Solve the following equations analytically.
a) 9 x  5  5x  3( x  1)
b)
1 1
5
 (4 x  5)  2( x  3) 
4 6
12