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Contest materials © CEMC, University of Waterloo. Used under CC BY-NC 4.0.

Contest questions, solutions, and related materials are © Centre for Education in Mathematics and Computing (CEMC), University of Waterloo.
Used under the Creative Commons Attribution-NonCommercial 4.0 International License in accordance with the CEMC Copyright Notice.

Changes made: Questions have been reformatted for interactive use (multiple-choice display, flash cards, mock tests). Step-by-step solution explanations and rationales have been added. Original content is available at cemc.uwaterloo.ca.

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