Scientific notation is a common way of writing very large numbers. In everyday life we see this when dealing with cell phone storage. If a phone has 10 gigabytes of hard drive space

that means that it has 10×10^{9} bytes of space. A megabyte is 1×10^{6} bytes.

- If our phone with 10 gigabytes of free storage downloads a game that takes of 76 megabytes, how much free storage is left?
- Describe the process of subtracting numbers in scientific notation and give the solution.
- Discuss other place we frequently see scientific notation in real life?

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