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THINKER

THINKER. If 4.46 x 10 11 telephone calls were placed by 1.35 x 10 8 American telephone subscribers, what was the average number of calls placed per subscriber? Answer is about 3,304 calls. WORD PROBLEMS.

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THINKER

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  1. THINKER If 4.46 x 1011 telephone calls were placed by 1.35 x 108 American telephone subscribers, what was the average number of calls placed per subscriber? • Answer is about 3,304 calls

  2. WORD PROBLEMS • We are going to apply our knowledge that we learned from yesterday. You will be given some problems (1 at a time). With your group, see if you can use scientific and standard notation to answer the questions. • Write the problems down and then figure out if your group can get a plan to solve them. • We will work the problems out on the board after each group tries to solve them first.

  3. WORD PROBLEMS Problem 1 • A web site averages 4.5 x 104 hits per day. How many hits will it get in 3.6 x 102 days? • Answer is 16,200,000

  4. WORD PROBLEMS Problem 2 • Two companies merged to form a new company. One company was worth $3.5 x 107. The other was worth $7.8 x 108. What is the combined value of the new company? • Answer is $815,000,000

  5. WORD PROBLEMS Problem 3 • In 2010, the world population was about 6.7 x 109. The population of United States was about 3.1 x 108 About how many more times is the world’s population bigger than the U.S.? Use 1 number! Answer is 22 times

  6. WORD PROBLEMS Problem 4 • In 2010, the population of India was about 1.16 x 109. The population of United States was about 3.1 x 108 How much more was the population of India than the United States in 2010? Answer is 850,000,000

  7. WORD PROBLEMS Problem 5 • Rhode Island is the smallest state. It has an approximate area of 1.5 x 103 square miles. Alaska is the largest state. The area of Alaska is 4.28 x 102 times greater than the area of Rhode Island. What is the approximate area of Alaska in square miles? Answer is 642,000

  8. WORD PROBLEMS EXTRA • The GDP of China in 2009 was about $8.7 x 1012. The GDP of Togo in 2009 was about $5.5 x 109. • How much greater was China’s GDP than Togo’s GDP in 2009? Answer is 8.6945 x 1012

  9. KEY VOCAB for #3, #5, #6 • (1) Product of Powers • (2) Quotient of Powers • (3) Power of Powers • (4) Negative Exponents • (5) Equivalent Expressions • (6) Scientific Notation

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