That is a good strategy. The best thing to do is just to relax. You may find that the answers will come to you once you stop focusing on how little you can remember. When I was back in school, there were several tests that I took where my mind drew a complete blank on the first few questions. Whenever that happened to me, I would read through the entire test before answering anything. Doing that allows the subconscious mind to 'search its databanks' and to process the information. You may be surprised how much you really know!