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- 1. Multiple ChoiceThe mass of he sun is 1.989 x 1030 kilograms. The mass of the earth is 5.98 x 1024 kilograms. How many times bigger is the sun than the earth?3.326 x 1053.326 x 1061.99 x 10301.99 x 106
- 2. Multiple ChoiceThere are approximately 3.1 x 108 people in the United States. If each person has 4.1 x 101 coins, how many coins are there altogether?1.271 x 10101.271 x 1091.271 x 10111.271 x 108
- 3. Multiple Choice
A factory can make 3 × 104 t-shirts per day, how many t-shirts will it make in 2.5 ×102 days?
7.5 × 106 t-shirts
7.5 × 104 t-shirts
75 × 105 t-shirts
none of these
- 4. Multiple Choice
A corporation earned a profit of $2.5 × 104 for 1 × 103 days in a row. What was the corporation’s total profit during this time period?
2.5 million
250 million
1.2 million
26,000
- 5. Multiple Choice
The population of Crowded Town is 4 × 106 and the population of Empty Village is 8 × 103. How many times greater is the population of Crowded Town compared to Empty Village?
3.2 x 1010
500
.002
2
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