Allows calculations in the grade field.

hen I use a point weight on a single assignment, I then have to calculate the grade. So an assignment that is worth 5 points but the student makes a 98% on requires me to calculate 5*.98 to get the grade. I would love to just enter 5*.98 in the box. And there are times when I have 3 grades that need to be averaged to get the overall assignment grade. It would be great to be able to enter a calculation (100+100+93)/3