IMO

How to prepare for the IMO (International Mathematics Olympiad) 2026

10 Jun 2026 · 8 min read

The International Mathematics Olympiad (IMO) run by SOF is the largest school maths competition in India. It rewards students who can reason, not just compute.

The paper in one table

Section What it tests
Logical Reasoning Patterns, series, coding–decoding, spatial puzzles
Mathematical Reasoning Class syllabus applied in non-routine ways
Everyday Mathematics Money, time, measurement, data in real situations
Achievers Section Higher-order, multi-step problems (more marks per question)

Question counts differ for Classes 1–4 and 5–12 and may change by year, so check the current official pattern.

Logical Reasoning

This is the most trainable section. Practise one pattern family per day: number series, letter series, odd one out, mirror/water images, paper folding. After ten of each you will recognise most structures within seconds.

Mathematical Reasoning

Work from your textbook's exercise ends, where harder questions live. Practise estimation (is the answer around 40 or 400?) and always check units. A common trap is solving what you expect the question to ask instead of what it asks.

Everyday Mathematics

Read slowly. These questions are mostly reading comprehension wrapped around two lines of arithmetic. Underline quantities, convert units first, then calculate.

Achievers Section

These carry extra marks per question but there are only a few. Attempt them last unless you are very comfortable. Even partial progress helps because you learn the style of hard questions.

Time management

  • First pass: answer everything you can in under a minute.
  • Second pass: return to marked questions.
  • Keep five minutes at the end to re-read the Achievers section.

Practice checklist

  1. Take a free 20-question IMO mock for your class.
  2. Note accuracy per section.
  3. Pick the weakest section and practise it for a week.
  4. Take a full-length mock under exam timing and compare.