Basic Mathematics for College Students

CHAPTER 4 TEST

1. Fill in the blanks.
   a. Copy the following addition. Label each addend
   and the sum.

b. Copy the following subtraction. Label the

minuend,the subtrahend,and the difference.

c. Copy the following multiplication. Label the

factorsand the product.

d. Copy the following division. Label the dividend,

the divisor,and the quotient.

e. 0.6666... and 0.8333... are examples of

decimals.

f. The symbol is called a symbol.

2. Express the amount of the square
   region that is shaded using a
   fraction and a decimal.

1

3.4

(^2) 6.8

1.3

 7

9.1

9.6

 6.2

3.4

2.67

 6.01

8.68

5. Write four thousand five hundred nineteen and twenty-
   seven ten-thousandthsin standard form.


6. Write each decimal in
   
   
   • expanded form
   
   
   • words
   
   
   • as a fraction or mixed number. (You do not have to
     simplify the fraction.)
     a. SKATEBOARDING Gary Hardwick of
     Carlsbad, California, set the skateboard
     speed record of 62.55 mph in 1998.
     (Source: skateboardballbearings.com)
   
   
   
   

b. MONEY A dime weighs 0.08013 ounce.

408

3. Consider the decimal number: 629.471
   a. What is the place value of the digit 1?
   b. Which digit tells the number of tenths?
   c. Which digit tells the number of hundreds?
   d. What is the place value of the digit 2?


4. WATER PURITY
   A county health
   department
   sampled the
   pollution content of
   tap water in five
   cities, with the
   results shown. Rank
   the cities in order,
   from dirtiest tap water to cleanest.

Pollution,

City parts per million

Monroe 0.0909

Covington 0.0899

Paston 0.0901

Cadia 0.0890

Selway 0.1001

7. Round each decimal number to the indicated
   place value.
   a. 461.728, nearest tenth
   b. 2,733.0495, nearest thousandth
   c. , nearest millionth


8. Round $0.648209 to the nearest cent.
   Perform each operation.


9. 
   


10. Subtract 39.079 from 45.2


11. 
    
    
    
    12. 
        
    
    
    
    


12. 
    
    
    
    14. 
        
    
    
    
    


13. 
    
    
    
    16. 
        
    
    
    
    


14. Divide. Round the quotient to the nearest hundredth:


15. a. Estimate the product using front-end rounding:

b. Estimate the quotient:

19. Perform each operation in your head.
    a.
    b.


20. Write 61.4 billion in standard notation.


21. EARTHQUAKE DAMAGE After an earthquake,
    geologists found that the ground on the west side of
    the fault line had dropped 0.834 inch. The next week,
    a strong aftershock caused the same area to sink
    0.192 inch deeper. How far did the ground on the
    west side of the fault drop because of the earthquake
    and the aftershock?

0.00458 100

567.9091,000

3,907.219.3

34 6.83

12.146

5.3

(^11)  13 2.4(1.6)

8.7

 0.004

6.7(2.1)

0.1368

0.24

(0.32)^2

4.56 2 0.8963.3

1.9833732