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Data Storage Units

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Data Storage Units

A community science team is preparing files for a field trip. Use the decimal storage units in this worksheet: 1 KB = 1,000 bytes, 1 MB = 1,000 KB, and 1 GB = 1,000 MB. Show calculations where asked.

Meet the data

The team has collected these files for its field trip:

Storage reminder 1 KB = 1,000 bytes 1 MB = 1,000 KB 1 GB = 1,000 MB

1.The plant notes file is 240 KB. How many bytes is that? Show the multiplication you used.

2.Which file is largest: the bird call recording, coastline map, or photo collection? Choose one.

Bird call recording
Coastline map
Photo collection

3.Convert the 750 KB photo collection to megabytes. Write your answer as a decimal.

Pack the files

A field-trip tablet has 6 MB of free storage. Assume these files can be saved together and ignore any extra space used by the device.

4.Convert the plant notes and photo collection to MB, then find their combined size.

5.Add all four files to find their total size in MB. Will they all fit in the tablet's 6 MB of free storage? Explain using your total.

6.The team deletes the bird call recording. How much storage do the remaining three files use in KB? Show how you converted MB to KB.

Make sense of storage data

The team checks how much data each device has used. The figures below are in MB.

Check your thinking Range = largest value − smallest value Mean = total of values ÷ number of values

7.Order the four devices from least data used to most data used. Include the amounts.

8.Find the range of data used by the four devices. Give your answer in MB.

9.Find the mean amount of data used by the four devices. Show the total and division.

10.Tablet A used 420 MB. How many more megabytes would it need to use to reach the mean for the four devices?

11.A new audio file is 2.4 MB. Is it larger or smaller than the 750 KB photo collection, and by how many KB? Convert both sizes to KB before comparing.