Home Task 3: Data- Representation Option 3 – Option 3 – By Kelly Clark. Published on December 7, 2020. 0 http://https://www.topteacher.com.au/resource/qr-code-missing-numbers-to-20-write-the-room This is a great activity for using digital data. Students scan the QR codes to reveal number lines with missing numbers. Share this:TwitterFacebookLike this:Like Loading... + There are no comments Add yours Cancel replyYou must be logged in to post a comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.