USABO Open Exam Worked Solutions


The USABO Open past paper Worked Solutions for years 2004-2016.


The USABO Open past papers are freely available online.

Since the USABO past papers don’t come with solutions, we’ve written ‘USABO Past Paper: 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 2016 Open 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)