Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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Evaluate the expression.
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1.
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2.
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3.
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4.
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a. | 3125 | c. | – | b. | –3125 | d. |  |
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Simplify the expression. Write your answer as a power.
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5.
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6.
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7.
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8.
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Write the number in standard form.
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9.
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10.
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a. | 0.00045 | c. | 0.000225 | b. | 0.000045 | d. | 0.0000045 |
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Multiply. Write your answer in scientific notation.
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11.
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Add or subtract. Write your answer in scientific notation.
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12.
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 + 
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13.
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 – 
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Divide. Write your answer in scientific notation.
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14.
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(  ) ¸ (  )
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Short Answer
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Write the product using exponents.
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1.
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2.
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3.
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The mass of a grain of sand is about  gram. About how many grains of sand
are in 1,000 kilograms of sand?
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4.
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Suppose the average grain of salt weighs about 0.000058 gram. What is the weight
(in grams) of 2 million grains of salt?
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Find the area of the figure. Write your answer in scientific
notation.
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5.
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6.
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Initially, there are  fish living in a lake. The
population will quadruple every month. The number of fish present after t months can be
expressed with the formula  a. Find the
population of fish in the lake after 11 months as a power of 4. b. If an illness
kills  of the fish, how many will remain? Write your answer as a power of 4.
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