Hi as i have said in other posts i want to be an Aircrewman, although currently i cant put myself forward for manning clearance as i have a return of service for something else i must first serve. So to give myself the best chance i want to use the time the best i can. What maths should i be concentrating on? Maths isn't above me I'm just out of practice and its something i don't want to have to worry about when i eventually do get a grading. Thanks in advance.