This suite of videos looks at elements of progression in subtraction in Key Stage 2. Julie, in Lower Key Stage 2, explores partitioning and how this links to exchange in the decomposition method for subtraction. Danielle, in Upper Key Stage 2, successfully introduces the compact algorithm.
You can also find the videos on our YouTube channel - and you may find it useful to download them to your own device, using the links given beneath each video. If you encounter any problems, please contact us.