I have found an interesting activity in the website for children to work on binary numbers.

https://teachyourkidscode.com/free-binary-numbers-worksheet-for-the-holidays/

There are two parts to this activity sheet:

(1)

Children will analyse the given binary image and record the correct binary numbers to represent the picture. White squares represent ‘0’ while black squares represent ‘1’.

(2)

Binary numbers are given and children will need to translate them to a binary image. White squares represent ‘0’ while black squares represent ‘1’.