Wednesday question

What is 15% of (add all the numbers in your phone number, double it and use that number)
Example: 3124393   3+1+2+4+3+9+3=25    25 x 2= 50

So I work out 15% of 50.
(If you were away when we learnt how to work out percentages last week. Ask one of your friends to look at the example in their maths book.)We will be working with percentages again next term.