🇸🇬 Singapore Math Olympiad (SMO) Guide

Singapore Mathematical Olympiad — Junior, Senior, and Open sections run by the Singapore Mathematical Society.

About SMO

The Singapore Mathematical Olympiad has three sections: Junior (Sec 1–2), Senior (Sec 3–4), Open (JC/Poly). Top performers are invited to training for the IMO team.

Exam Pattern

• Round 1: 25 short-answer + 5 long questions (varies by section).
• Round 2 (invitation): Proof-style problems.

Study Plan

1. Master Singapore O-level / IP maths first — speed matters.
2. Study classic olympiad topics: number theory, combinatorics, inequalities, geometry.
3. Solve past SMO papers under timed conditions.
4. For Round 2: learn to write clear proofs.

Key Resources

• SMS past papers (sms.math.nus.edu.sg)
• Alpha School's Singapore Maths (bar modelling foundations)

This is an independent study guide. It is not affiliated with or endorsed by the Singapore Mathematical Society.

Practice Questions, Quizzes & Progress

Original practice questions for this guide load below. Practice only — not a real exam paper.

Study notes by topic

Open a topic for its key concepts and worked examples.

Topic practice

Pick a topic and a level, then start. Questions are shuffled; explanations appear after you answer.

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Timed practice mock

25 questions across all topics, 45 minutes, auto-scored with a full review. Practice mock — not the real exam.

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