Without meaning to sound like a total dick how can they even make this stuff hard?
The only way I can see myself losing marks is if they make a question worded in such a way as to catch people out. Their was one video on exam solutions which showed how this can happen. But that wasn't really math that did it more the wording of it catches people out. I spoke they might have one or two odd questions like that maybe a 4 or five marker but really this stuff should be easy.
i think the important thing is practice and to make sure your familiar with the appropriate technical terms but seriously there is a lot lot harder math modules this stuff with the right prep 100 ums should be attainable for anyone. I usually always make a silly mistake or two so might slip to 90 etc on 70-72 marks but come on guys no one gets poor grades in this module do they?