Bubble method - for finding percentages of any number

Step by step method for working out any percentage using easy mental maths methods such as dividing by 10 or 100; doubling and adding up. An example is included and a blank “bubble template “ to users to use with their own percentage problems. A smart notebook version of the template is also included.
Please note you must have the Smart Notebook software installed on your computer in order to open, view and use the Notebook resource http://smarttech.com/