Remember: Blackboard doesn’t automatically treat ungraded items as zeros, so a “no grade” for an activity doesn’t count against a student.
To make sure your final grade calculations are accurate, make sure you manually enter zeros for all activities without attempts — all no turn-ins, etc. To do this, look for the no grade symbol (–) in the full grade center. If the student deserves a zero, click in the cell and type a 0. If you don’t do this, the denominator in the total column isn’t accurate — a student must have a grade (even if its 0) for every activity at the end of the quarter.
For more on calculating grades, check out Everything You Need to Know to Set Up Your Blackboard Grade Center.