My GMAT exam is in one week today. I have been studying like crazy and am feeling confident about my understanding of the topics and questions, however, I tend to make a lot of calculation errors in the math section. simple things like addition and times tables that make me get the wrong answer even if I did the question correctly. I haven't done math since high school (more than 7 years ago) and I have never ever had an exam where I did not have the use of a calculator, so this is new to me.

do you have any tips or strategies of how I can fix this problem over the next week? do I just need to drill myself on simple addition, and multiplication for 10 hours? or is there something else I can do? (I am taking the 5 days before my exam off of work so that I can really spend a lot of time studying, so if I need to take 10 hours to do something, that's doable).

Thanks!!!!!