chocolate treats for maths

I bought two large blocks of chocolate and have eaten nearly all of them.  Why did I buy chocolate?????  Well you might ask.  I was doing some maths and naturally that brought chocolate to mind and when there is chocolate, there is me eating it.  I am going to have to find a low cal answer to my maths stress.  Nah nothing is as good as chocolate.  Either I continue to do the maths and eat all the chocolate in Australia or I give up the maths.  Well I guess you know the answer.  It is what Americans call a 'no brainer.'