More Core 3&4 worked solutions

Core 3 Jan 2011
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpNzJmNDEyMmUtZWMyYS00MmJlLTkzMWItNTg5Yjc1N2UyYmYw&hl=en_US


Core 3 Jan 2006
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpYjRjYWY5MTgtN2ExYy00ZmY3LWIxODgtZmVjYmVlNGM1NWNj&hl=en_US


Core 3 June 2005
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpYzhkMDNkMGUtZmIzNS00OWJhLWIxNGUtNjU5Njc5MzEyZTkx&hl=en_US


Core 4 Jan 2011
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpYzA4NTJkMTQtZjc2NS00NGEyLTlmOTktYmNiZDM2MmNmY2U2&hl=en_US


Core 4 June 2007
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpZTcyYjViMTgtN2NmMS00NzJmLWJiMjgtZDhhMDQwMzE1OWQ3&hl=en_US


Core 4 Jan 2007
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpOGQ2ZDE4ZTItMzMxNi00NmU3LTliYjYtZWJiMTg1Njc2MGUw&hl=en_US


Core 4 June 2006
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpM2FlYjlhNzktZjUzZS00Mjk1LTkzYjAtNjFhOGQ3ODZlZmRh&hl=en_US


Core 4 Jan 2006
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpNWEyZWEwMTQtNDUyYi00NWUxLTlkZTUtOGM2N2IwNmI5Y2U3&hl=en_US


Core 4 June 2005
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpZjRjYWUwYTgtMDBiOS00MzFiLTlhMGMtMmE4YTcwOWQwYzk3&hl=en_US