Thread:HMcCoy/@comment-28838092-20140622212253/@comment-28838092-20140622221107

I use my method all the time. It has already earned me over 3,000,000 energy points from doing the additon and subtraction over and over again. ( 120,000 - 150,000 problems ).

I tried to earn speed badges before, but their just to hard to achieve in my opinion.

You can use Peter Collingridge website to see the exercise times:

- http://whatbadgenext.appspot.com/speed_badges