SilverZone Foundation · Maths · Class 8
International Olympiad of Mathematics (iOM) Class 8: syllabus, dates and exam pattern (2026–27)
Everything you need in one place — the exact NCERT chapters this paper tests, all 3 exam dates, the registration window, and the full marking scheme. Updated for the 2026–27 session.
Last verified against SilverZone Foundation's own site on 18 August 2026. Exam dates re-checked on 24 August 2026.
2026–27 exam dates
Date 1
8 October 2026
Date 2
18 November 2026
Date 3
7 December 2026
SilverZone publishes these under the heading "Tentative Examination Schedule for the year 2026-27" — they are the body's own dates, but SilverZone has not marked them final, so treat them as indicative until your school confirms. One inconsistency worth knowing about: the schedule lists three dates, while the iOM page itself still describes a two-date structure ("the school may opt from the two dates suggested"). Ask your coordinator which of the published dates your school has actually opted for.
Registration: SilverZone published one registration cutoff covering every paper it runs: 31 August 2026, on the same page it headed "Tentative Examination Schedule." It was the earliest deadline on this site, and it fell weeks before the exam. Registration is through participating schools only, so that date bound your school rather than you. SilverZone has published nothing since about late entries or an extension. If your school hasn't registered, ask your coordinator whether it made this date, or write to info@silverzone.org to check whether a late registration is still possible.
The deadline is set by your school, not by you
Most parents find the exam date and assume they have until then. The registration window closes long before it, and for some papers it has already started closing. Here is how it actually works.
- Your school registers your child and your school picks which of the 2–3 dates the class sits. The family does not choose.
- For SOF papers, registrations must reach SOF exactly 30 days before that chosen date — and once the school has chosen, the date cannot be changed.
- Most bodies register through the school. Four do not have to: CREST (online, no published cutoff), Unified Council — directly for NSTSE itself at ₹350 against ₹150 through a school, and on three online sittings, NSTSE-Online, UIMO-Online and UIEO-Online, at ₹354 each including GST — Indian Talent Olympiad on its individual online route (its own later dates — Slot 1 closes 30 October), and Humming Bird (online, ₹150 a subject, no published cutoff — its two dates are picked as you register). CREST is the simplest of the four.
Closing next
Indian Talent Olympiad — Set A
Registration closes 31 August 2026 · all five subjects
SilverZone — every paper
Registration closes 31 August 2026 · all five subjects
The body publishes this date but has not marked it final — confirm with your school before treating it as fixed.
SOF IEO (English)
If your school picks 30 September 2026, registration closes 31 August 2026 · English
SOF IMO (Maths)
If your school picks 23 October 2026, registration closes 23 September 2026 · Maths
Or read the full calendar on the site — no sign-up
Every deadline in this box was checked against that exam body's own website on 24 August 2026. Bodies do move dates — we re-check every Monday.
Exam pattern
How the iOM paper is structured
| Section | Questions | Marks per question | Section total |
|---|---|---|---|
| Number Systems | 5 | 2.5 | 12.5 |
| Algebra and Geometry | 5 | 2.5 | 12.5 |
| Comparing Quantities | 5 | 2.5 | 12.5 |
| Mensuration | 2 | 2.5 | 5 |
| Data Handling | 3 | 2.5 | 7.5 |
| Reasoning and Aptitude | 10 | 3 | 30 |
| Scholar's Zone | 5 | 4 | 20 |
| Total | 35 questions | — | 100 marks · 40 minutes |
Half of this paper is not Class 8 maths. Reasoning and Aptitude carries 30 marks and the Scholar's Zone another 20 — 50 of the 100, from 15 of the 35 questions. That is a much heavier reasoning load than the same paper at Class 6, where reasoning is 17.5 marks from 5 questions, so a child moving up through iOM meets a different paper rather than a harder one. Mensuration is the thinnest section on the paper at 2 questions, which is worth knowing before spending a fortnight on surface areas.
SilverZone publishes no current-year/previous-year weighting for iOM, so none is claimed here.
Syllabus
Maths syllabus mapped to NCERT Ganita Prakash (Class 8, 2026-27)
Ch 1. A Square and A Cube
Olympiad syllabus label: Number Systems — Square and Square Root; Cube and Cube Root
Ch 2. Power Play
Olympiad syllabus label: Number Systems — Exponents (the pre-2023 chapter name)
Ch 3. A Story of Numbers
Olympiad syllabus label: Number Systems — Rational Numbers (the pre-2023 chapter name for this ground)
Ch 4. Quadrilaterals
Olympiad syllabus label: Algebra and Geometry — Understanding Quadrilateral; Convex and Concave polygon
Ch 6. We Distribute, Yet Things Multiply
Olympiad syllabus label: Algebra and Geometry — Algebraic Expressions and Identities; Factorization
Ch 7. Proportional Reasoning-1
Olympiad syllabus label: Comparing Quantities — Direct and inverse proportions
Ch 10. Proportional Reasoning-2
Olympiad syllabus label: Comparing Quantities — Percentage; Discount and Taxes; Compound Interest and its Application
Ch 11. Exploring Some Geometric Themes
Olympiad syllabus label: Mensuration — surface area and volume of cube, cuboid and cylinder
Ch 12. Tales by Dots and Lines
Olympiad syllabus label: Data Handling — Introduction to Graphs; Line graphs
Ch 13. Algebra Play
Olympiad syllabus label: Algebra and Geometry — Linear Equation in one variable
Ch 14. Area
Olympiad syllabus label: Mensuration — the area half of the same entry
Here is the finding this page exists for, and it needs the SOF Class 8 page next to it to see. SOF's Class 8 maths syllabus is written against the current book — eleven of its thirteen entries are Ganita Prakash Class 8 chapter names word for word. SilverZone's, for the same class and the same subject, is written against the old one: Rational Numbers, Exponents, Square and Square Root, Understanding Quadrilateral, Introduction to Graphs. Not one of those is a chapter title in the book your child is actually holding. The topics are almost all still there under new names, mapped above — so this is a naming problem, not a syllabus problem, and a parent comparing the two lists side by side would reasonably conclude the papers test different things when they largely do not. Three of SilverZone's entries have no chapter in the 2026-27 book at all: Time and Work, pie charts, and Probability. Of those three, our own practice covers pie charts, which sits in the curator taxonomy's Legacy bucket for Grade 8 Maths (alongside frequency distribution and histograms). Time and Work and Probability are in neither the book nor our taxonomy — we do not cover them, and a child who wants those will need to go outside both.
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