Challenge Board:Score points by answering questions correctly.
Challenge Board for FOC v3, Pt 2 ch 19-24 (70 problems=90 minutes of play)
WATCH OUT!!! SOME QUESTIONS ARE LONG AND HAVE A SLIDER BAR ON UPPER RIGHT HAND SIDE OF THE QUESTION; MOVE IT DOWN TO SEE THE ENTIRE QUESTION BEFORE YOU TRY TO ANSWER IT.
