totally agree! i sat the paper in june and found maybe 2 questions which were challenging, the remaining questions required common sense and basic maths. A lot of pre-regs panicked when they saw unfamiliar questions in the paper that had not come up in past papers. I advise future pre-regs to use past paper calculations just to get used to the layout and timing of the paper and nothing more. if you rely heavily on past-papers you will be in for a shock as the GPhC can put any random question into the paper. this years paper was nothing like past paper calculations, but some of the questions were really easy marks which could be worked out in less than a minute, however people who panicked messed up badly!
if you want to pass the calculations then my advise would be to;
1. sharpen up on basic maths such as long division and multiplication
2. learn to round-up especially if the options given in a question are far apart (easier to work with full numbers and less likely to make mistakes)
3. always read questions at least twice even if they sound easy (last thing you want to do is get an easy question wrong)
4. double check as you go along (rather than coming back to it, saves a lot of time)
5. do all working-outs on paper (less likely to make mistakes)
6. do not panic if you have never seen a certain question before
7. keep an eyes on the time, some questions may take you 5 mins or longer to answer whereas others will take you less than a minute, so it all balances out
8. mark the answers on the marking sheet as you answer each question
Hope you all pass! Good luck!
