In the 2025–2026 academic year, BBB (Big Brain Bee) continues to be one of the prominent international math thinking competitions, organized by the Fermat Education Organizing Committee – the organization behind major contests such as TIMO, HKIMO, and FMO. This is an opportunity for Vietnamese primary school students to challenge themselves with logical, creative, and practical math problems.

BBB 2025–2026 Registration Guide

Eligible Participants: Primary and secondary school students who love mathematics and logical thinking.

How to Register:

• Parents can register through MathsAM – the official registration support partner of the BBB Organizing Committee.
• Or register directly following the instructions provided by the Organizing Committee at the official link.
• Registration deadline: According to the timeline announced by Fermat Organizing Committee in the 2025–2026 notification.

Exam Format: Multiple-choice, conducted online or at designated test centers by region.

Important Dates for BBB 2025–2026

Round	Registration Deadline	Exam Date	Format
Preliminary	October 15, 2025	November 2, 2025	Online test, supervised via Zoom
National	November 26, 2025	December 21, 2025	Online test with camera supervision
International	According to official notice	March 14, 2026	Online or onsite in China (HK/Shenzhen)

Exam Structure

Round	Number of Questions	Maximum Score	Duration	Question Type	Language
Preliminary	20 (Parts A and B)	100 points	60 minutes	Multiple-choice	Bilingual English–Vietnamese
National	25 (Parts A, B, and C)	125 points	75 minutes	Fill-in answers	English (with Vietnamese explanations)
International	30 (Parts A, B, and C)	150 points	90 minutes	Fill-in answers	English

Awards

Category	Percentage Achieved	Award
Excellent Award	Top 3 highest scorers per grade	Championship Cup, 1st and 2nd Runner-up
Gold Medal	Top 8% highest scorers	Medal + Certificate
Silver Medal	Next top 16%	Medal + Certificate
Bronze Medal	Next top 24%	Medal + Certificate
Encouragement Award	≥ 20 points (national round) / ≥ 30 points (international round)	Certificate

How to Register

• Individual registration: tinyurl.com/Dangkycanhan-BBB2526
• Register via MathsAM: Send a message directly to the page “MathsAM – International Primary Math Olympiad”
• School registration: Send the list of participants via email to BBB@fermat.edu.vn

Fees

• Preliminary round: 200,000 VND per participant
• National round: 450,000 VND per participant

Exemption from Preliminary Round:

Students who achieved Diamond, Gold, Silver, or Bronze awards in standard contests (TIMO, HKIMO, FMO, etc.) from September 1, 2024, to August 31, 2025, are exempted from the preliminary round and can directly enter the national round.

Join MathsAM at BBB 2025–2026

At MathsAM, students will:

• Practice various BBB sample exams tailored by grade level.
• Train on the center’s online self-practice platform.
• Learn fast and accurate problem-solving skills for international math thinking exams.

Register for MathsAM’s training program today to prepare well for BBB 2025–2026 — a solid first step on the journey to conquering international mathematics!

For more consultation and support, please contact:

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