Marking GCSE HIGHER (non-calculator) online. The question is to work out a sale price with a 1/3 off. A simple division by 3 and then either multiply by 2 or subtract off. You would think it was easy (original price is a multiple of 3) but <u>so many</u> candidates are working out 33% (even some are working out 30%) and making it so very much harder for themselves with decimals involved. Invariably they are getting it wrong and worse spending ages on it judging by the screeds of workings out that you have to trawl through. This is happening OFTEN,not just an occasional student. Why do students immediately go for the percentage method? It would not have been the case when I did my O' levels!