- 25th USC High School Math Contest (February 5, 2011)
- Problems from written exam [PDF]
- Answer key for written exam [PDF]
- Solutions to written exam [PDF]
- Presentation of solutions to written exam [PDF]
- Problems from Ciphering [QuickTime Movie]

- 24th USC High School Math Contest (January 30, 2010)
- Problems from written exam [PDF]
- Answer key for written exam [PDF]
- Solutions to written exam [PDF]
- Problems from Ciphering [QuickTime Movie]

- 23rd USC High School Math Contest (December 6, 2008)
- 22nd USC High School Math Contest (December 8, 2007)
- 21st USC High School Math Contest (December 9, 2006)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]
- Solutions to written exam [PDF]

- 20th USC High School Math Contest (January 21, 2006)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]
- Solutions to written exam [PDF]

- 19th USC High School Math Contest (April 9, 2005)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]
- Solutions to written exam [PDF] [PostScript]

- 18th USC High School Math Contest (February 7, 2004)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]
- Solutions to written exam [PDF]
- Presentation of solutions for written exam [Clickable Quicktime Movie] [Continuous Quicktime Movie] (size: > 8 MB!)
- Problems from Ciphering

- 17th USC High School Math Contest (February 1, 2003)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]
- Solutions to written exam [PDF] [PostScript]

- 16th USC High School Math Contest (January 19, 2002)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]
- Solutions to written exam [PDF] [PostScript]
- Step-by-step presentation of solutions to teachers for the written exam [PDF – 200 pages!]

- 15th USC High School Math Contest (January 20, 2001)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]
- Solutions to written exam [PDF] [PostScript]
- Interactive problems and solutions for the ciphering contest [animated with JavaScript]

- 14th USC High School Math Contest (January 15, 2000)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]
- Solutions to written exam [PDF] [PostScript]
- Interactive problems and solutions for the written exam [animated with JavaScript]
- Interactive problems and solutions for the ciphering contest [animated with JavaScript]

- 13th USC High School Math Contest (December 5, 1998)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]
- Solutions to written exam [PDF] [PostScript]
- Interactive problems and solutions for the written exam [animated with JavaScript]
- Interactive problems and solutions for the ciphering contest [animated with JavaScript]

- 12th USC High School Math Contest (December 6, 1997)
- Problems from written exam [PDF] [PostScript] [IDVI] [GIF]
- Answer key for written exam [HTML]
- Solutions to written exam [PDF] [PostScript] [IDVI] [GIF]

- 11th USC High School Math Contest (December 7, 1996)
- Problems from written exam [PDF] [PostScript] [IDVI] [GIF]
- Answer key for written exam [HTML]
- Solutions to written exam [PDF] [PostScript]

- 10th USC High School Math Contest (December 2, 1995)
- Problems from written exam [PDF] [PostScript] [IDVI] [GIF]
- Answer key for written exam [HTML]

- 9th USC High School Math Contest (December 3, 1994)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]
- Interactive problems and solutions for the ciphering contest [animated with JavaScript]

- 8th USC High School Math Contest (December 4, 1993)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]
- Interactive problems and solutions for the ciphering contest [animated with JavaScript]

- 7th USC High School Math Contest (December 5, 1992)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]

- 6th USC High School Math Contest (December 7, 1991)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]

- 5th USC High School Math Contest (December 1, 1990)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]

- 4th USC High School Math Contest (December 2, 1989)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]

- 3rd USC High School Math Contest (November 12, 1988)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]

- 2nd USC High School Math Contest (December 5, 1987)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]

- 1st USC High School Math Contest (November 8, 1986)
- Problems from written exam [PDF] [PostScript]
- Answer key for written exam [HTML]

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