# Numbers in Binary

In this lesson, we will build upon using a decimal numbering system, in order to draw analogies with how numbers can be represented using binary. We will convert between binary and 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.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Numbers in Binary

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.What is the binary number for number 23 (decimal)?

1/4

Q2.What is the binary number for number 30 (decimal)?

2/4

Q3.What is the decimal number for binary 10?

3/4

Q4.What is the decimal number for binary 1011

4/4

Quiz:

# Numbers in Binary

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.What is the binary number for number 23 (decimal)?

1/4

Q2.What is the binary number for number 30 (decimal)?

2/4

Q3.What is the decimal number for binary 10?

3/4

Q4.What is the decimal number for binary 1011

4/4

# Lesson summary: Numbers in Binary

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Jog

On the spot:
Dance