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Approximating with Powers of 10

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  • Oliver has about 2,500,000,000 dollars, while Parker has about 2,500,000 dollars. How many times more money does the Oliver have than Parker?
    2 × 10^3 dollars
  • The distance from Earth to the Moon is about 384,000 km. Choose the best approximation of this distance.
    4 × 10^5 km
  • The mass of an apple is about 1.15 kg. Choose the best approximation of this mass.
    1 × 10^0 kg
  • The thickness of a sheet of paper is about 0.001 m. Choose the best approximation.
    1 × 10^-3 m
  • The population of a small city is 72,000. Choose the best approximation of this population.
    7 × 10^4
  • The diameter of the Earth is about 12,742 km. Choose the best approximation.
    1 × 10^4 km
  • The weight of a car is about 1,200 kg. Choose the best approximation.
    1 × 10^3 kg
  • The average human hair is about 0.0001 m thick. Choose the best approximation.
    1 × 10^{-4} m
  • The distance from Earth to the Sun is about 160,000,000 km. Choose the best approximation.
    2 × 10^8 km
  • The population of India is about 1,420,000,000. Choose the best approximation.
    1 × 10^9
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