tip: cut down your fractions what you do to the top you do to the bottom, e.g 100/10 is the same as 10/1 you will then have more manageable calculations to deal with...CAE offer a maths and physics bundle which may be useful to brush up your skills, it'll pay dividends not only in tests but in training, a google search should find some time/distance practice questions, be prepared to pay a fee...practice makes perfect!