USABO Semifinal Exam Worked Solutions – coming soon in paperback


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The USABO Semifinal past papers are freely available online.

Since the USABO past papers don’t come with solutions, we’ve written ‘USABO Past Papers: Worked Solutions’ – written for your studying, it’s the only such set of documents devoted to helping you solve past USABO questions. It contains detailed explanations for every question from 2004 to 2014 Semifinal exams as well as comprehensive extra reading material.

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 original papers are not included)