Interactive PDFs - Add & Subtract up to 100 with Dienes | Adobe Education Exchange
Number – Maths Zone Cool Learning Games
Cool Apps for Schools - MathsBot is a website which has lots of manipulative tools than can be used on the interactive whiteboard. Some are tablet friendly also. Check them out here:
Add and Subtract with Dienes within 100 | Teaching Resources
Using SMART Blocks to make math interactive - SMART Notebook 21