# Number bases

In this lesson, you will use decimal representation to explore the concept of place values in number bases and the values of digits. Then, you will explore the representation of binary values, and converting these back to decimal.

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

- Click "Close Video"
- Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Lesson summary: Number bases

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The next lesson in Data Representation is "Binary maths"