- 13. twenty-two million in scientific notation
- 14. sixty-six thousand five hundred in scientific notation
- 15. three billion six-hundred thousand in scientific notation
- 17. The area of the state of Florida is approximately 65,800 square miles. Write this number in scientific notation?
- 18. James read that the speed of light is approximately 3.0 × 108 meters per second. He estimates an equivalent speed, in miles per hour, to be 67,108,086. Estimate James' speed to the nearest hundredth in scientific notation.
- 19. Scientists have estimated that the distance from the Sun to the Earth is approximately 1.5 × 1011 meters. If NASA were sending a space probe from the Earth to the Sun and then the probe traveled from the Sun back to the Earth (round-trip), what is the total distance that the probe will have traveled?
- 20. Yesterday's headline in the local newspaper read, "Clean-Up from Oil Spill Exceeds $10 billion!" Write 10 billion is scientific notation.
- 21. As Jack and Kimberly dusted their apartment, they argued about how much dust weighs. They searched the Internet and found that the mass of a million dust particles is 0.000753 kilogram. Write the mass of a million dust particles in scientific notation.
- 22. The radius of the Milky Way is approximately 3.9 × 1020 meters long. What is that in standard form?
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