National Mathematical Olympiad of Singapore (NMOS): 2026 Parent & Student Guide

Q: What does National Mathematical Olympiad of Singapore (NMOS): 2026 Parent & Student Guide cover?
A: A one-page primer that demystifies NMOS rules, rounds, awards and IP-entry leverage.

TL;DR
NMOS registration is school-based for Primary 5 pupils only; no individual entry. Check NUS High’s official NMOS site for the current rules/timeline (site was unreachable on 2025-11-30; verify via school circulars). Past cycles used Round 1 MCQ and a Special Round by invitation—confirm the exact format and dates from the latest Rules & Regulations before preparing.

1 What exactly is NMOS? (facts & origin)

• Organiser — NUS High School of Mathematics and Science.
• Target cohort — Past rules restrict entry to Primary 5 pupils registered through schools; confirm the latest circular for any changes.
• Aims — Stretch high-ability learners and identify pupils who may benefit from further enrichment.
• Typical structure (past cycles) —
  • School registration only (check the yearly circular for exact window)
  • Round 1 MCQ paper (previously 25 questions, 2 hours)
  • Invitation-only Special Round (previously short-answer format)
  • Awards announced after marking

Exact dates, duration, and format are set by the organiser each year in the Rules & Regulations.

2 Competition format at a glance