USABO Semifinal 2020 Worked Solutions
- Format: PDF (view only; non-downloadable)
- Pages: 53
These solutions contain valuable insight on how to approach difficult questions and also walk you through the most efficient methods for rapidly getting the correct answer. Filled with examples of time saving techniques and score boosting strategies, this is a MUST-BUY for anyone using past papers as part of their USABO preparation.
The USABO Semifinal past papers are freely available online.
(The original papers are not included)
*Note that PDF files are nonrefundable.
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