Exam scoring without answering questions

Thanks for the reply!Unfortunately it doesn't seem to matter whether I turn on or off the "Retain Answers" or "Ensure that the student answers all questions" features.It still seems to start with a base score of 76 (regardless of previous sessions scores). If I answer questions it then adds or subtracts some points - though not seemingly related to the point weights I've assigned. For example if I only answer 1 question (leaving all others unanswered) and it has a question weight of 2 points, the score becomes 73 (not even 74, which I could at least understand).