

1. 
Find the solution of 72 + z = 84 if the value of z can be selected from the set {4, 8, 12, 16}. 


A. 
12 
B. 
4 


C. 
8 
D. 
16 


Hint 


2. 
An infant weighs 7 pounds at birth. Assuming that she gains 1 pound every 2 weeks, how much will she weigh in 10 weeks? 


A. 
17 pounds 
B. 
5 pounds 


C. 
12 pounds 
D. 
7 pounds 


Hint 


3. 
Evaluate 27 ÷ 3 · 3 + 5. 


A. 
32 
B. 
8 


C. 
72 
D. 
17 


Hint 


4. 
Evaluate if a = 9, b = 6 and c = 3. 


A. 
5 
B. 
11 


C. 
15 
D. 
9 


Hint 


5. 
Write 2^{4} as a product. 


A. 
2 · 2 · 2 · 2 
B. 
4 · 4 


C. 
4 + 4 
D. 
2 + 2 + 2 + 2 


Hint 


6. 
Solve 3x = 18. 


A. 
7 
B. 
21 


C. 
15 
D. 
6 


Hint 


7. 
Write 120,000,000 in scientific notation. 


A. 
12×10^{7} 
B. 
1.2×10^{9} 


C. 
1.2×10^{8} 
D. 
0.12×10^{9} 


Hint 


8. 
Solve 3x = 36. 


A. 
6 
B. 
14 


C. 
13 
D. 
12 


Hint 


9. 
Multiply 45.3 × 10^{2}. 


A. 
4.53 
B. 
453 


C. 
4,530 
D. 
0.453 


Hint 


10. 
The speed of light in a vacuum is exactly 299,792,458 meters per second. Write this number in scientific notation with the factor rounded to the hundredths place. 


A. 
2.99 × 10^{10} 
B. 
3.00 × 10^{9} 


C. 
2.99 × 10^{9} 
D. 
3.00 × 10^{8} 


Hint 


11. 
Write 1,360,000,000,000 in scientific notation. 


A. 
1.36 × 10^{12} 
B. 
1.36 × 10^{13} 


C. 
0.136 × 10^{13} 
D. 
13.6 × 10^{12} 


Hint 


12. 
Find the next term in the sequence 81, 27, 9, 3, … 


A. 
1 
B. 
3 


C. 
9 
D. 
6 


Hint 


13. 
Evaluate 3^{7}. 


A. 
2,187 
B. 
5,034 


C. 
343 
D. 
21 


Hint 


14. 
Write 7 · 7 · 7 · 7 · 7 in exponential form. 


A. 
7^{5} 
B. 
7^{7} 


C. 
5^{7} 
D. 
5^{5} 


Hint 


15. 
Evaluate j  k if j = 10 and k = 2. 


A. 
20 
B. 
5 


C. 
8 
D. 
12 


Hint 


16. 
Graph the solution of 3b = 33 on a number line. 


A. 

B. 



C. 

D. 



Hint 


17. 
Find the property that is shown by y + z = z + y. 


A. 
Commutative Property of Addition 
B. 
Commutative Property of Multiplication 


C. 
Associative Property of Addition. 
D. 
Identity Property of Addition 


Hint 


18. 
Which expression represents the Identity Property of Multiplication? 


A. 
8 + 0 = 8 
B. 
4 × 1 = 1 × 4 


C. 
j × 1 = j 
D. 
h × 0 = 0 


Hint 


19. 
Choose the sequence that is arithmetic. 


A. 
1, 1, 2, 3, … 
B. 
5, 7, 12, 18, … 


C. 
4, 12, 36, 108, … 
D. 
17, 29, 41, 53, … 


Hint 


20. 
Describe and identify the pattern in the sequence. 68, 85, 102, 119, … 


A. 
×2; geometric 
B. 
+17; geometric 


C. 
×1.5; geometric 
D. 
+17; arithmetic 


Hint 


