2025 Canadian Senior Math Contest (CSMC) | Part A | Step-by-Step Solutions | CanadaMath

Welcome to CanadaMath’s complete walkthrough of Part A of the 2025 Canadian Senior Math Contest (CSMC)!
Part A focuses on strong foundational problem-solving skills, logical reasoning, and clear mathematical thinking, forming the basis for the more advanced problems in Parts B and C.

In this video, we solve each Part A question with clear, step-by-step explanations, helping you build confidence and accuracy while developing strong habits for written-solution contests like the CSMC.

Perfect for students transitioning from AMC-style contests to higher-level Canadian and Olympiad-style competitions.
What You’ll Learn

Full step-by-step solutions to CSMC 2025 Part A problems
Efficient strategies for algebra, geometry, and number theory fundamentals
How to structure clear, organized written solutions
Common mistakes students make in early CSMC questions
Techniques to improve speed, accuracy, and logical reasoning
Who Should Watch

Senior high-school students preparing for the Canadian Senior Math Contest
Students moving from AMC 10/12 to COMC, CSMC, and Olympiad-style contests
Math club members, teachers, and contest coaches
Anyone who wants to strengthen core contest problem-solving skills
Subscribe for More

Contest walkthroughs
Problem-solving strategies
Proof-writing and reasoning techniques
AMC, AIME & Canadian math contest prep
Like, Share & Comment — Which Part A problem did you find the most interesting?
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CanadaMath is an online collection of tutorial videos for the grades 7-12 mathematics competitions of Canada and the United States of America.

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The Canadian math contests are conducted world-wide on an annual basis by the University of Waterloo in Waterloo, Ontario, Canada: https://www.cemc.uwaterloo.ca

Canadian math contest papers, answer keys and full solutions: https://www.cemc.uwaterloo.ca/contests/past_contests.html

The American math contests are conducted world-wide on an annual basis by the Mathematical Association of America: https://www.maa.org/math-competitions

American math contest papers, answer keys and full solutions: https://www.maa.org/math-competitions/amc-resources

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