IMO Class 10 — Mathematics
Key Class 10 topics: Real numbers, Polynomials, Pair of linear equations in two variables, Quadratic equations, Arithmetic progressions and more.
2026–27 · 5 olympiads
Olympiads for Class 10: IMO, IEO, NSO, IGKO, ISSO
A Class 10 student can sit 5 SOF olympiads this year. Compare the exam patterns below, open the class-wise syllabus for each, and practise with free tests and full-length mock exams that give an instant all-India rank.
Class 10 olympiad exam patterns at a glance
| Olympiad | Subject | Questions | Duration | Level 2 | Level 1 dates |
|---|---|---|---|---|---|
| IMO | Mathematics | 50 | 60 min | Yes | Oct 22 / Nov 19 / Dec 10, 2026 |
| IEO | English | 55 | 60 min | Yes | Sept 24 / Oct 20 / Nov 5, 2026 |
| NSO | Science | 60 | 60 min | Yes | Oct 15 / Nov 12 / Dec 3, 2026 |
| IGKO | General Knowledge | 35 | 45 min | No | Sept 10 / Oct 1, 2026 |
| ISSO | Social Studies | 55 | 60 min | No | Nov 30, 2026 / Jan 19, 2027 |
No SOF olympiad has negative marking. Dates are tentative — see exam dates and confirm with your school.
IEO Class 10 — English
Key Class 10 topics: Determiners and modals, Sentence transformation, Reported speech and voice, Clauses and non-finites, Phrasal verbs and idioms and more.
NSO Class 10 — Science
Key Class 10 topics: Chemical reactions and equations, Acids, bases and salts, Metals and non-metals, Carbon and its compounds, Periodic classification of elements and more.
IGKO Class 10 — General Knowledge
Key Class 10 topics: Indian polity and the Constitution, Basics of the economy, Science, space and technology, History and culture of India and the world, International organisations and summits and more.
ISSO Class 10 — Social Studies
Key Class 10 topics: History: nationalism in Europe and in India, History: the making of a global world, History: the age of industrialisation and print culture, Geography: resources, forests, wildlife and water, Geography: agriculture, minerals and energy and more.
Class 10 olympiads — frequently asked questions
Which olympiads can a Class 10 student take?
Class 10 students can take the IMO, IEO, NSO, IGKO and ISSO. Each is a separate exam on a different date.
Which olympiad is best for Class 10?
Start with the subject your child enjoys most. Many Class 10 students take IMO and NSO first, then add IEO, IGKO or ISSO once they are comfortable with the format.
Can a Class 10 student appear for more than one olympiad?
Yes. The olympiads are held on different dates, so students commonly take two or three in one year.
Is there a Level 2 for Class 10?
Yes, for IMO, IEO, NSO. Top Level 1 performers qualify for the second round.
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