

1. 
Write 3,465 in scientific notation. 


A. 
34.65×10^{2} 
B. 
346.5×10 


C. 
3.465×10^{3} 
D. 
0.3465×10^{4} 


Hint 


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


A. 
2.564×10^{6} 
B. 
2,564×10^{3} 


C. 
25.64×10^{5} 
D. 
2.564×10^{5} 


Hint 


3. 
Write 6.2 × 10^{5} in standard form. 


A. 
62,000 
B. 
620,000 


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


Hint 


4. 
Which set of numbers is ordered from least to greatest? 


A. 
10,100,000; 1.01 × 10^{6}; 101,000,000; 1.0 × 10^{7} 


B. 
1.01 × 10^{6}; 1.0 × 10^{7}; 10,100,000; 101,000,000 


C. 
10,100,000; 101,000,000; 1.01 × 10^{6}; 1.0 × 10^{7} 


D. 
101,000,000; 10,100,000; 1.0 × 10^{7}; 1.01 × 10^{6}; 


Hint 


5. 
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^{6} sq mi 
B. 
3.5 × 10^{5} sq mi 


C. 
3.5 × 10^{3} sq mi 
D. 
3.5 × 10^{4} sq mi 


Hint 


