Do i put a +/- with the grade or leave it blank?

SadFool
Thu, 19 Jan 2012 23:59:07 +0000

If my CC awards only letter grades A,B,C,D, and F and no +/-, can i list it as an A+ without any repercussions?
Because that’s what I did, and i don’t know if i can change it or not.
Ahhhhhh :[