You can type your answer and
press [Enter] - you don't need
to use the mouse to click [Check].
Press [Enter] again to see the
next problem.
Don't use a calculator - use your brain.
Work as fast as you can
(without making mistakes.)
Each correct answer counts +1,
each wrong answer counts -1.
You must reach a score of 20 to finish.
Under 60 seconds is a good time.
Created by Dave Mulkey, 2006
Frankfurt International School Dave_Mulkey@fis.edu