This interactive teaching resource is for demonstration purposes. Using it teachers can show a vast number of examples easily and clearly. Generate a new question and then tap the answer tiles to increase by one. Below the main section is a smaller set of tiles that show exactly what is happening – whether you are adding units, tens or hundreds. The resource insists on carrying numbers correctly so in the screen shot shown the resource will not accept 1 in the units answer unless you have tapped all the way through to 11 and shown the carry.
This teaching resource should be effective for whole class work on an interactive screen or in small group work using an iPad or Android tablet.