

1. 
Evaluate 5 + 6 – 2 + 4. 


A. 
7 
B. 
5 


C. 
13 
D. 
17 


Hint 


2. 
Evaluate 27 ÷ 3 · 3 + 5. 


A. 
72 
B. 
17 


C. 
8 
D. 
32 


Hint 


3. 
2,561 mm = ______m 


A. 
2.561 
B. 
0.2561 


C. 
2,561,000 
D. 
25.61 


Hint 


4. 
Write 2,564,000 in scientific notation. 


A. 
2.564×10^{6} 
B. 
25.64×10^{5} 


C. 
2,564×10^{3} 
D. 
2.564×10^{5} 


Hint 


5. 
Write 120,000,000 in scientific notation. 


A. 
0.12×10^{9} 
B. 
1.2×10^{8} 


C. 
12×10^{7} 
D. 
1.2×10^{9} 


Hint 


6. 
What is the next term in the sequence 1, 4, 7, 10, … ? 


A. 
30 
B. 
40 


C. 
13 
D. 
17 


Hint 


7. 
Anna lives in San Francisco, and she has a business partner in Washington, D.C. Sometimes she flies to Washington for meetings; San Francisco and Washington, D.C., are 2438 miles apart. In August, Anna flies to Washington and back twice. What is a good estimate of the number of miles she has flown in August? 


A. 
1000 miles 
B. 
5000 miles 


C. 
2500 miles 
D. 
10000 miles 


Hint 


8. 
Evaluate y^{3} if y = 4. 


A. 
64 
B. 
12 


C. 
16 
D. 
43 


Hint 


9. 
Solve 3x = 36. 


A. 
6 
B. 
13 


C. 
14 
D. 
12 


Hint 


10. 
Solve f = . 


A. 
3 
B. 
2 


C. 
4 
D. 
6 


Hint 


11. 
Multiply 45.3 × 10^{2}. 


A. 
0.453 
B. 
4.53 


C. 
4,530 
D. 
453 


Hint 


12. 
523 m = ______ km 


A. 
523,000 
B. 
0.523 


C. 
0.0523 
D. 
5.23 


Hint 


13. 
7,939 mg = ______ g 


A. 
7.939 
B. 
0.7939 


C. 
79.39 
D. 
7,939,000 


Hint 


14. 
Write 45,870,320 in scientific notation. 


A. 
45.87032 × 10^{6} 
B. 
45.87032 × 10^{7} 


C. 
4.587032 × 10^{8} 
D. 
4.587032 × 10^{7} 


Hint 


15. 
Find the next term in the sequence 81, 27, 9, 3, … 


A. 
1 
B. 
6 


C. 
3 
D. 
9 


Hint 


16. 
Express 64 in exponential form as a power of 4. 


A. 
4^{4} 
B. 
4^{3} 


C. 
4^{5} 
D. 
2^{6} 


Hint 


17. 
Evaluate j  k if j = 10 and k = 2. 


A. 
20 
B. 
5 


C. 
8 
D. 
12 


Hint 


18. 
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. 
34 + 27 


C. 
2(27 + 34) 
D. 
2(27) × 2(34) 


Hint 


19. 
Write 6.2 × 10^{5} in standard form. 


A. 
62,000 
B. 
620,000 


C. 
62,000,000 
D. 
6,200,000 


Hint 


20. 
The Mojave Desert in southern California is 15,000 square miles. The Sahara Desert in northern Africa is about 233 times larger than the Mojave Desert. How big is the Sahara Desert? 


A. 
3.5 × 10^{4} sq mi 
B. 
3.5 × 10^{5} sq mi 


C. 
3.5 × 10^{6} sq mi 
D. 
3.5 × 10^{3} sq mi 


Hint 


