Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Plot the number 2.8 on the real number line. 
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2.
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Which of the following is an example of a rational number that is not a natural
number?
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3.
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Evaluate the expression. 
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4.
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Find the difference. 
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5.
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What number must be added to 38 to obtain –7?
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6.
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The temperature at 6 A.M. was  F. By noon, the temperature
had increased by  F. What was the temperature at
noon? a. | 23°F | b. | 21°F | c. | 25°F | d. | 2°F | e. | –25°F |
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7.
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A man awoke to a temperature of 40°F. By the time he arrived at work, the
temperature had increased by 11°F. At lunch he noted the temperature had decreased from the
temperature when he arrived at work by 12°F. Upon arriving home after work, the temperature had
decreased another 13°F. What was the temperature when the man arrived home?
a. | 76°F | b. | 26°F | c. | 52°F
| d. | 15°F | e. | 4°F |
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8.
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The temperature measured by a weather balloon is decreasing approximately  F for each 1000-foot increase in altitude. The balloon rises 9000 feet. What is the total
temperature change?
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9.
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An object moves a distance of 490 miles in 7 hours. What is the object's
average speed in miles per hour?
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10.
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Add the fractions  and write the result in simplest
form.
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11.
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Multiply the fractions  and write the result in
simplest form.
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12.
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Multiply  and write the result in simplest
form.
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13.
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Write the fraction  in decimal form. a. | 0.6 | b. | 0.2 | c. | 9.9 | d. | 9.4 | e. | 0.1 |
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14.
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Rewrite the expression in exponential form. 
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15.
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Evaluate the expression  .
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16.
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Evaluate the expression  , if possible.
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17.
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Evaluate the expression  .
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18.
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Identify the property of real numbers illustrated by the statement  . a. | Commutative Property of Multiplication | b. | Commutative Property of
Addition | c. | Distributive Property | d. | Associative Property of
Addition | e. | Associative Property of Multiplication |
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19.
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Rewrite the expression  by using the Distributive
Property of real numbers.
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20.
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Find the additive inverse and the multiplicative inverse of  .
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