Riddle Me This...

So Michael brought home his progress reports last week.  One from each class.  Now I know that I am not very good with math (I admit it, Cathleen!) but this makes NO sense to me whatsoever!

These are his scores in one of his classes:
100
93
98
0
88


He has a 95.5 on his project 
but a 47 on his classwork


His average in class?  A 62.9%.  Which, using the STUPID 7 point scale, means that he is failing this class!  


So to answer the question plaguing us all, no, I am NOT smarter than a fifth grader (or in this case, a sixth grader).