Humming Bird Education · Maths · Class 6
Humming Bird Mathematics Olympiad (HMO) Class 6: syllabus, dates and exam pattern (2026–27)
Everything you need in one place — the exact NCERT chapters this paper tests, its published exam dates, the registration window, and the full marking scheme. Updated for the 2026–27 session.
Last verified against Humming Bird Education's own site on 17 August 2026. Exam dates re-checked on 28 September 2026.
2026–27 exam dates
Date 1
18 November 2026
Date 2
2 December 2026
These two dates are alternatives, not two rounds — the paper is sat once, and the date is chosen at the moment of registration from exactly these two options. Both routes offer both dates: a family registering directly picks one, and a school registering a class picks one for the class. Worth knowing where these dates come from, because it is not where you would look: Humming Bird's own exam-schedule page still shows a 2021 calendar, and the 2026-27 dates appear only inside the registration form, one selectable slot per olympiad per class. Every other paper on this site publishes its dates on a schedule page.
Registration: Humming Bird publishes no registration cutoff for this paper — not a rolling window like SOF's 30-day rule, and not fixed dates like Indian Talent Olympiad's. The only dates it publishes are the two exam dates themselves, and you choose one as you register and pay, so in practice the deadline is whenever the slot you want stops accepting entries. A parent can register a child directly, without the school: the individual route is online, the paper is taken from home on a desktop, laptop, tablet or phone, and the fee is ₹150 per subject (₹600 for candidates outside India). Through a school the same paper can be run online or on paper, whichever the school chooses, and the school keeps up to 40% of the fees collected as an honorarium for organising it. That direct route matters: most bodies register only through the school, and this is the fourth we have verified that does not have to — alongside CREST, Unified Council's NSTSE and Indian Talent Olympiad's individual online slots.
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. These 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 them. SilverZone also runs an individual registration form alongside its default school route; which papers it offers we have not been able to confirm.
Closing next
SilverZone Foundation — Every SilverZone paper
Registration closes 30 September 2026
The body publishes this date but has not marked it final — confirm with your school before treating it as fixed.
SOF ISO (Science) — if your school picks 30 October 2026
Registrations must reach SOF by 30 September 2026
Indian Talent Olympiad (ITO) — School route — Set B
Registration closes 10 October 2026
SOF IEO (English) — if your school picks 17 November 2026
Registrations must reach SOF by 18 October 2026
SOF IHO (Hindi) — if your school picks 23 November 2026
Registrations must reach SOF by 24 October 2026
Or read the full calendar on the site — no sign-up
Every deadline in this box was re-read against the exam body's own website on or after 28 September 2026. Each table carries its own source link and its own date. Bodies do move dates, so check against the body's own site before you act on one.
Exam pattern
How the HB-M paper is structured
| Section | Questions | Marks per question | Section total |
|---|---|---|---|
| Single paper — multiple choice | 40 | Not published | — |
| Total | 40 questions | — | 50 minutes · marks not published |
Humming Bird publishes a question count and a duration and no marking scheme at all: no mark total, no marks per question, and no statement about negative marking anywhere on its site. That is why the table above says "not published" rather than assuming one mark a question. Two further cautions, both from the body's own pages. Its FAQ says exams "may have 30 to 50 questions depending on the grade and subject" while the HMO page states 40 — the body contradicts itself on its own question count, so treat 40 as the paper page's figure rather than a guarantee. And whether your child sits this online or on paper is the school's decision, not the family's, unless you register directly, in which case it is always online.
Syllabus
Maths syllabus mapped to NCERT Ganita Prakash (Class 6, 2026-27)
Ch 1. Patterns in Mathematics
Olympiad syllabus label: Not named on Humming Bird's Class 6 list — number and shape patterns surface in its Reasoning and Aptitude questions instead
Ch 2. Lines and Angles
Olympiad syllabus label: Geometry
Ch 3. Number Play
Olympiad syllabus label: Number Systems; Numbers and Their Operations
Ch 4. Data Handling and Presentation
Olympiad syllabus label: Graphical Representation of Data; Data Handling
Ch 5. Prime Time
Olympiad syllabus label: Factors and Multiples
Ch 6. Perimeter and Area
Olympiad syllabus label: Geometry and Mensuration; Mensuration
Ch 7. Fractions
Olympiad syllabus label: Parts and Wholes; Fractions and Decimals (the fractions half — see the note below on decimals)
Ch 8. Playing with Constructions
Olympiad syllabus label: Geometry (Humming Bird names no construction topic separately)
Ch 9. Symmetry
Olympiad syllabus label: Geometry (Humming Bird names no symmetry topic separately)
Ch 10. The Other Side of Zero
Olympiad syllabus label: Not on Humming Bird's Class 6 list — it first names Integers at Class 7
Humming Bird publishes its Class 6 maths syllabus as a flat list of fifteen bullets, with no sections and no marks against any of them: Number Systems, Numbers and Their Operations, Factors and Multiples, Parts and Wholes, Fractions and Decimals, "Algebra, Ratio and Proportion", Algebra, Ratio and Proportion, Geometry and Mensuration, Mensuration, Geometry, Graphical Representation of Data, Data Handling, Reasoning and Aptitude, and HOTS based Questions. Five of those fifteen are umbrella headings printed at the same level as the topics they contain, which is why the list looks longer than it is — the real content is about nine topics. Three of them have no chapter in the 2026-27 Ganita Prakash, and all three moved rather than disappeared. Ratio and proportion is now Class 8 material, taught across Proportional Reasoning-1 and Proportional Reasoning-2; it is the one topic here our curator taxonomy carries as a Class 6 olympiad-scope topic beyond the book, and our Class 6 maths practice keeps it in scope. Algebra — expressions with letter-numbers and simple one-variable equations — moved to Class 7, as chapters 4 and 15 of that book. Decimals moved to Class 7 too, into A Peek Beyond the Point and Another Peek Beyond the Point, so the "Fractions and Decimals" bullet is only half-covered by this year's book. Our Class 6 practice does not carry algebra or decimals as olympiad-scope topics; the taxonomy has exactly one Class 6 maths topic outside the book and it is the proportion one. It runs the other way as well, which is the more cheerful half: Ganita Prakash now teaches integers in Class 6 (The Other Side of Zero) while Humming Bird does not name integers until its Class 7 list, so on that topic the school book is a year ahead of the paper. The mapping in the table above is ours, not the body's — Humming Bird publishes topic names with no map to the new book.
Try it yourself
Today's maths question
Practice
Practice in the HB-M format
No — OlympAI does not publish a practice paper for this exam. Humming Bird does not publish a section structure or a marking scheme.
Frequently asked questions
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SilverZone Foundation · Class 6
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Keep reading
Guides that answer the next question
Which olympiad should my Class 6 child take?
Class 6 opens no doors that Class 7 and 8 do not — the paper list is identical at all three. What changes is that starting here costs least. The routes, the fees and the dates, read off each body on 7 September 2026.
Which olympiads can you register for without the school?
Most olympiad bodies register students through the school — but some take a family directly: CREST, Indian Talent Olympiad’s individual online route, Unified Council’s NSTSE and Humming Bird, and SilverZone runs an individual form of its own. Here is exactly how each one works, what it costs, and the deadline that applies to each.
Or see every 2026-27 exam date and registration cutoff in one table, or browse all the papers we cover.
Practice these exact chapters, free
Up to 20 olympiad-pattern questions a day free, in each subject, and 200 a day on a paid plan — for Class 6 maths, generated from the same NCERT chapters above and written to the shape of the real olympiad papers, then automatically checked before they can be served, the hardest ones re-solved by a second model that has to agree.
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