Core4 Worked solutions 2008,2009,2010

June 2010
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpNGJhODk2ODQtMjY4Yi00MTIyLWFlODgtZDI2Zjc0YjE4YWMz&hl=en

January 2010
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpYWFjZmQ4NzYtZDY5Zi00YzEzLWI2OTUtOTk4MDI4OTUzNmMy&hl=en

June 2009
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpMTA4MzRlZjAtYWM3Zi00OGRiLWJhMDUtMzkzZWQ3MDhlZTJl&hl=en

January 2009
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpODBkNmQ4MjMtOTg0ZC00OWUzLWIwMmItYjIwNTJjOTc2MTdk&hl=en

June 2008
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpNGNiNTJiN2YtOThjZi00MDdlLTk5N2YtNDBiNmMwYmQ0Yjdm&hl=en

January 2008
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B2J1T-insOmpMGVlOTFlY2UtOTRkYi00NzhiLTg1MjYtY2QxZWQyMWRhZjUw&hl=en