Heartbreaking Simpsons Moments 1/∞: Bart Gets an F

I never understood why it’s an F if he gets more than half out of 100? Unless it’s more than 100. If you get more than half the answers right how is it an F?

You must not be from America. Here, grading is fucked up.

Average American Grading Scale:
A+- 97-100
A - 94-96
A- - 90-93
B- 80-89
C- 70-79
D- 60-69
F- 59 and under

oh wow that is fucked up