OBMEP Mirim
One of the world's largest elementary math competitions with 4.4 million+ participants across Brazil. Free to enter, open to both public and private schools.
Grade Levels
Grades 2-5
Format
Mixed Format
Scoring
Two phases held in schools. Open to public and private institutions.
Participants
4,400,000+
Established
2022
May
Phase 1 (first semester)
September
Phase 2 (second semester)
Registration
Through schools (public and private)
Prizes & Recognition
Medals and certificates. Growing participation with 4.4 million students in 3rd edition.
About This Competition
OBMEP Mirim (Olimpiada Mirim) is the elementary school division of Brazil's famous OBMEP program, organized by IMPA (Institute of Pure and Applied Mathematics). Created in 2022 for students in grades 2-5, it has grown rapidly to become one of the world's largest elementary mathematics competitions with 4.4 million participants in its third edition.
The competition consists of two phases held in schools and is free to enter for both public and private institutions. OBMEP Mirim builds on the success of the main OBMEP competition, which reaches over 18 million students in grades 6-12.
Brazil's investment in large-scale math competitions reflects a national commitment to mathematical literacy. OBMEP Mirim makes competitive mathematics accessible to millions of young learners across the country, regardless of their school's resources or location. The program aims to stimulate interest in mathematics, identify talented students early, and promote the improvement of mathematics education throughout Brazil.
How to Prepare
Practice with Visual and Concrete Problems
OBMEP Mirim emphasizes visual reasoning and concrete mathematics for young learners. Practice with pattern recognition, counting strategies, and spatial reasoning.
Read Problems Aloud to Understand Them
For younger students, reading problems aloud can help with comprehension. Break multi-step problems into smaller parts and solve each part separately.
Use OBMEP's Banco de Questoes
OBMEP provides a free question bank (Banco de Questoes) at obmep.org.br with practice problems organized by level. Also explore their video solutions.
Brazil's Largest Student Competition
OBMEP reaches millions of Brazilian students. Participating shows you're part of a massive community of young mathematicians. Enjoy the journey!
Frequently Asked Questions
What is OBMEP Mirim?
OBMEP Mirim (Olimpiada Mirim) is the elementary school division of Brazil's famous OBMEP program, organized by IMPA. Created in 2022 for students in grades 2-5, it has grown rapidly to 4.4 million participants, making it one of the world's largest elementary mathematics competitions.
Is OBMEP Mirim free to enter?
Yes. OBMEP Mirim is completely free for both public and private schools. This accessibility is a key factor in its massive participation numbers across Brazil.
How is the competition structured?
OBMEP Mirim consists of two phases, both held in schools. Phase 1 takes place in the first semester and Phase 2 in the second semester. The format is designed to be age-appropriate and engaging for elementary students.
What is the relationship between OBMEP and OBMEP Mirim?
OBMEP Mirim is the younger sibling of OBMEP (Olimpiada Brasileira de Matematica das Escolas Publicas), which serves grades 6-12 and reaches over 18 million students. OBMEP Mirim extends this successful program to elementary grades 2-5.