When taking exams for school on Chol Hamoed, should one try to keep the writing to a bare minimum (for example, not to do an outline of the answer prior to writing if it’s not really necessary, or otherwise to minimize the writing), or may one write freely as long as it is for the purpose of the exam? If one is able to skip a quiz and it won’t really affect his grade (maybe he will lose two points…), is it necessary to skip it?
You are right, try to minimize the wtiring as much as possible. If you can take the exam afterwards do so
Zichron Shlomo pg. 76 in the name of R Moshe Feinstein ZT”L