On the path of mathematics competitions leading to top universities, the Euclid Mathematics Contest and the AMC 12 are two of the most frequently mentioned names. Many students preparing for North American universities often need to choose between the two, or decide whether to tackle both.
Many students wonder: “Since both are high school math competitions, why do I still find Euclid difficult even after finishing all the AMC 12 practice?”
The core of the issue lies in the fundamental “personality differences” in the underlying philosophies and assessment logic of these two competitions. Today, we will provide an in-depth comparison of these two major math events from three dimensions: format, thinking approach, and core competencies.
I. Format Logic: Speed Test vs. Logical Exposition
1. AMC 12: Precision Knowledge Sprint
The AMC 12 is a typical American-style competition, focusing on “high-pressure rapid decision-making.”
Format: 25 multiple-choice questions, 75 minutes.
Question Philosophy: The core of AMC 12 is a “broad screening logic.” Questions cover four major areas: algebra, geometry, number theory, and combinatorics, with an extremely steep difficulty curve (the first 10 questions are easy, the last 5 are extremely difficult). Within the time limit, participants must not only master the knowledge but also possess strong problem-solving techniques (tips & tricks).
Essence Assessed: Proficiency in knowledge points, flexibility in problem-solving techniques, and the ability to make optimal decisions under pressure.
2. Euclid: Rigorous Thinking Practice
The Euclid Contest (hosted by the University of Waterloo) is more like an “in-depth interview of mathematical academic ability.”
Format: 10 questions (including short-answer and extended-response questions), 150 minutes.
Question Philosophy: Euclid emphasizes “process logic.” Even if you calculate the correct answer, failing to provide a rigorous derivation will result in significant point deductions. It requires students to clearly justify the validity of every argument, much like a university professor.
Essence Assessed: Rigorous logical structuring ability, comprehensive case-based reasoning, and high-quality mathematical expression in English.
II. Comparison of Thinking Approaches: The Balance of Depth and Breadth
| Dimension | AMC 12 | Euclid |
|---|---|---|
| Core Competency | Quick response, tactical problem-solving, multi-dimensional solution strategies | Rigorous proof, logical decomposition, clear writing |
| Key Modules | Combinatorics and number theory (often the most challenging) | Algebra, geometry, logical analysis |
| Thinking Preference | Seeking the optimal path, quickly eliminating distractions | Structured breakdown, step-by-step proof |
| Ultimate Goal | Advancing to higher-level selections such as AIME | Demonstrating academic potential for applications to Canadian/North American universities |
Key Differences in Depth:
AMC 12 leans more toward “intellectual challenges.” The later problems often have a puzzle-like nature, testing whether you can think outside the box and use clever constructions or proof by contradiction to quickly lock in the answer.
Euclid leans more toward “academic training.” It wants to see how you transform a mathematical problem into a series of well-substantiated proof steps—a skill that is crucial for future STEM studies and academic writing at the university level.

III. Preparation Strategies: Which Mindset Do You Need?
1. Strategy for Preparing for AMC 12: Be a “Hunter”
- Practice: Work through a large number of past papers to build “question-type sensitivity.”
- Techniques: Practice switching between different solution methods; learn to use special-value substitution, elimination, symmetry analysis, and other tactics to score points as quickly as possible.
- Mindset: Aim for high accuracy and high speed.
2. Strategy for Preparing for Euclid: Be a “Scholar”
- Practice: Do not overly pursue quantity; instead, meticulously study the official full solutions from past years and learn from the “model answers” provided by the University of Waterloo.
- Techniques: Practice writing logical arguments; break down every complex proof into a “lemma-proof-conclusion” structure.
- Mindset: Pursue rigor and perfection in expression; practice presenting complex thought processes to graders using concise mathematical English.
IV. Value for University Admissions: The Complementary Effect of Both Competitions
These two competitions are not a matter of “either/or,” but rather “mutually reinforcing.”
A strong performance in AMC 12 demonstrates that you possess top-tier mathematical intelligence and the explosive power to tackle difficult problems—making it a “hard currency” for applications to prestigious universities.
A gold medal or high score in Euclid, on the other hand, proves that you have a solid academic foundation and a rigorous capacity for scientific expression—which is the “soft power” that admissions officers value most when faced with a pool of applicants with similarly high grades.
Frequently Asked Questions
What is the real difference between this paper and AMC 12?
Format drives everything else. AMC 12 is twenty-five multiple-choice questions in seventy-five minutes, so it rewards fast decisions and pattern recognition. This paper is ten questions in 2.5 hours with marks following the written solution, so it rewards decomposition and exposition. The same student can be strong at one and ordinary at the other, and that is a fact about the formats rather than about the student.
Can a student prepare for both in one season?
Yes, and the overlap is real at the topic level — algebra, geometry, number theory and combinatorics appear on both. What does not overlap is the training. Speed drills do not build written argument, and writing practice does not build the reflex for choosing among answer options under time pressure. Budget separate time for each rather than assuming one covers the other.
Which one should a student sit?
If the goal is to show something specific, choose by what you want evidenced. A strong AMC 12 result speaks to speed and problem-solving reach. A strong result here speaks to sustained reasoning written out clearly. They are complementary rather than competing, which is why students aiming at mathematics-heavy programmes often end up sitting both.