85+
Countries
The UCMAS method has grown and been proven in more than 85 countries.
MENTAL ARITHMETIC & BRAIN DEVELOPMENT FOR CHILDREN
More Than an Abacus — We Build Children Who Think Fast and Feel Confident.
Fun learning programs for children aged 4–12: fast mental calculation with the abacus, creative math, memory training, and early literacy.
UMC Indonesia helps children understand lessons easily, stay focused while studying, and face challenges confidently through active learning methods that train the left and right brain in balance.
A proven method trusted by parents around the world.
The UCMAS curriculum has been tested in more than 85 countries and keeps evolving to deliver effective learning outcomes.
30+
Years of Experience
A global curriculum that refines the way children learn.
4
Signature Programs
Abacus, I-Maths, Megabrain, and Chiquita under one roof.
12
Progressive Levels
A child's core thinking patterns develop most between ages 4 and 12.
A CENTER FOR UNLOCKING CHILDREN'S POTENTIAL
Every child has extraordinary potential. Our job is to help them find it.
We give full attention to knowing each child and understand that every child learns at a different pace and in a different way.
UMC Indonesia helps children discover, develop, and maximise their potential so they are ready with the knowledge to support their dreams later in life. Through structured and continuous practice, children improve their calculation speed and accuracy while strengthening concentration, memory, logic, and self-confidence.
Lessons take place outside regular school hours with interactive, structured, and enjoyable methods, guided by professionally trained instructors. We combine classic teaching tools such as the abacus with modern instructional skills to stimulate whole-brain development.
Four signature programs to support your child's growth.
From fast abacus calculation to reading, writing, and memory — everything is designed to make learning feel fun.
Programs are matched to your child's age and needs, with progressive levels that follow their development.
SEMOPOA
Mental Arithmetic (UMC Abacus)
Fast and accurate calculation with the two-hand, six-finger abacus method for children aged 4–12.
Learn about this serviceI-MATHS
I-Maths & IQ-Maths
Creative math for early-childhood to primary students with engaging manipulatives and many ways to solve problems.
Learn about this serviceMEGABRAIN
Megabrain (Mapping & Memory)
Speed reading, maximum memory, and efficient study techniques — a smart way to face school exams.
Learn about this serviceCHIQUITA
Calismaths Chiquita
Early literacy and numeracy for young children: reading, writing, and fun math foundations with quality manipulatives.
Learn about this serviceWhy choose UMC Indonesia?
More than a mental arithmetic course — a learning foundation for your child's future.
The benefits go beyond fast calculation: learning skills that serve children at every stage of their education.
Balanced Left & Right Brain
The two-hand, six-finger abacus method activates both sides of the brain so children think faster and more creatively.
Concentration & Focus
Structured practice trains children to keep their focus while working through a series of problems.
Learning That Is Fun
Engaging manipulatives, educational games, and a personal approach make children enjoy learning.
Self-Confidence
Regular national and international competitions build confidence and a winning spirit.
A Personal Approach
Every child is guided at their own pace by professionally trained instructors.
Proven Worldwide
A tested curriculum with a track record of success spanning nearly two decades in Indonesia and dozens of other countries.
Your child's learning journey at UMC Indonesia.
Four simple steps from the first meeting to steady progress, level by level.
Programs run progressively across levels. Each level has material and targets suited to your child's development.
01
Consultation & Trial Class
Parents get to know the UMC method and your child tries a class suited to their age.
02
Level Placement
Instructors assess your child's starting ability and place them at the right level.
03
Structured Practice
Children practice regularly with manipulatives, flash calculation, and periodic evaluations.
04
Competitions & Certification
Children test their skills in mental arithmetic competitions and move up levels with measurable results.
Stories from students and parents.
The achievements and growth of UMC Indonesia children across our branches.
From Jakarta to Wonosobo, UMC Indonesia students prove that practicing with the right method delivers results.
“I love studying at UMC INDONESIA LATIMOJONG — ever since I started, my grades at school have always been good. I studied MEGABRAIN and Mental Arithmetic Abacus there, and it helped enormously with every memorisation and calculation subject at school. Learning here is really fun: the teachers are friendly and the classroom is comfortable. Thank you, UMC INDONESIA LATIMOJONG! What Casey's parent (Anny Pattiwael) says: "We are very satisfied with Casey's progress at UMC INDONESIA LATIMOJONG! The program has helped Casey's development, especially at school. His math skills are excellent, his math grades are very good, and he can solve problems quickly and accurately. His memorisation skills have also clearly helped him face lessons and exams at school. Thank you, UMC INDONESIA LATIMOJONG!"”
Casey Jason Antonio
Megabrain & Mental Arithmetic Abacus Student · UMC Indonesia — Latimojong, Makassar
“"I joined lessons at UMC Sanggar Anggrek from age 3, starting with I-Maths, then the abacus, and IQ-Maths. The teachers are smart and patient. These lessons made it easier for me to understand and solve math word problems and to calculate faster. It gets more fun and more challenging over time, because I have to increase my calculation speed without the abacus (using a mental image) — it trains my concentration. What keeps me motivated is the chance to join abacus competitions at regional, national, and international levels — like in Bali in 2017, where I won National Runner-Up. Thank you to my teachers and friends… come join UMC, it's fun :)" Achievements: 2nd Place Fast Calculation ages 6-8 (4 December 2016); 1st Place Diligent MA Abacus Elementary (26 August 2017); Runner-Up Abacus Elementary B, 18th National Abacus & Mental Arithmetic Competition, Bali (9 December 2017).”
Kresensia Gisela Lionardi
Abacus & IQ-Maths Student · UMC Indonesia — Anggrek Loka, BSD Tangerang
“Studying Mental Arithmetic Abacus at UMC INDONESIA WONOSOBO made me more focused and concentrated, maximised my memory, and made me faster at calculating — so my achievements at school improved. Learning here is really fun, guided by very experienced teachers, and the material is easy to understand. Achievements: 1st Place KG 2B, Indonesian Arithmetic Olympiad 2013; 3rd Place Elementary 2 and Runner-Up Math Grade 3, Indonesian Arithmetic Olympiad 2014. From Hanifah's parent (Ani Rahmawati): "One way for a child to excel is to enrol them in Mental Arithmetic Abacus lessons — the right place to support a child's achievements both outside and at school! Thank you, UMC INDONESIA WONOSOBO!"”
Hanifah Nanisya Putri
Mental Arithmetic Abacus Student · UMC Indonesia — Wonosobo
“Benefits gained: the children have a fighting spirit and dare to try for the best results, work independently on school assignments, concentrate better, and calculate faster — even faster than a calculator. Kenneth's achievements: UN Math score 97.5 in primary school, 2016/2017. Aurel's achievements: Silver Medal, International Singapore Math Competition (ISMC) 2017 Grade P-3; Silver Medal, Singapore & Asian School Math (SASMO) 2017 Grade P-4; Bronze Medal, Math Kangaroo Competition 2017; IGE MA Grade 2 & Grade 4. From the parents (Herrianto Aliwarga & Vina): "We are deeply grateful to know UMC and Little Ello — especially Ms Herni, Ms Ayu, and Ms Imel, who have helped our children since they were little. We feel like family at Little Ello. UMC is the best — its learning concept is neat and structured, so children don't just memorise but truly understand."”
Kenneth Edbert Aliwarga & Clairine Aurel
Abacus & IQ-Maths Students (Advance 1 & Higher 1) · UMC Indonesia — Little Ello, Kelapa Gading
“A Spirit for Learning, the Courage to Be a Champion. When a child enjoys the learning process, the abilities that develop bring more confidence to try, compete, and achieve. Derrick joined the Mental Arithmetic Abacus program at UMC Indonesia Anggrek Loka. His calculation became faster and he grew more excited about learning math with his friends. That spirit brought him many achievements from an early age: 1st place in several math competitions, Bronze Medal Math Kangaroo Contest 2017, finalist of the Kuark Science Olympiad 2017, and various awards in abacus, storytelling, and photography competitions. He also received the Highest Achievement in Math 2015-2016 award at BINUS School Serpong. For Derrick, learning at UMC is not only about calculating faster and winning trophies — the fun atmosphere and friendships keep him motivated. "I CAN DO IT!"”
Derrick Xie
Mental Arithmetic Abacus Student · UMC Indonesia — Anggrek Loka, BSD Tangerang
“"Since childhood, we never had to teach Kiona basic math concepts. With abacus and I-Maths, the foundations for primary school were mastered easily and stress-free before she even finished kindergarten. The same in primary school — all basic math concepts were solid, with no difficulty at all in school lessons." Kiona's achievements: Silver Award SASMO 2012 Primary 2; 2nd Place Gasing Math Competition 2014; Platinum Award Eye Level Math Olympiad 2014; Distinction Award Australian Mathematics Competition 2015; Diamond JISMO 2017; Silver Award SASMO 2017 Primary 4; Silver Medal, National Science Olympiad (OSN) math 2017. From the parents (Erik & Octa): "Little Ello is a model of what a learning centre should be. The teachers are competent and attentive, and even the admin staff know every child by name. Teachers always update parents on each child's progress. The I-MATHS and IQ-MATHS methods are still the best we have ever found — Kiona stayed for about 7 years even though we live in Puri Indah! That proves the quality of UMC and Little Ello."”
Josephine Kiona Hadibroto
Abacus, I-Maths & IQ-Maths Student · UMC Indonesia — Little Ello, Kelapa Gading
“Focused Learning, Growing Achievement. Calculation skill is not the only thing that develops — concentration and the ability to understand lessons are also essential provisions for a child's growth. Aqiil Raaf Fadhlullah joined the Mental Arithmetic program at UMC Indonesia Banjarnegara. He developed fast and accurate calculation, better concentration, sharper focus while studying, and quicker comprehension of lessons, especially math. This development brought Aqiil 2nd Place Basic A at the UMC Wonosobo Competition 2016 and 2nd Place Basic at the UMC Wonosobo Competition 2017. For Mubui Andriyani, Aqiil's mother, this is a precious provision for his future education — with consistent guidance, Aqiil's abilities are expected to keep growing.”
Aqiil Raaf Fadhlullah
Mental Arithmetic Student · UMC Indonesia — Banjarnegara
“Growing Independent, Daring to Achieve. Raisya Arandella's journey with UMC Indonesia Wonosobo shows that learning is not only about calculation — it also builds independence, confidence, and courage to grow. Raisya developed her understanding of calculation methods along with independence, creativity, social skills, and organisational ability. Achievements: Special Runner-Up B, UMC Wonosobo Competition; 2nd Place DIKTE Beginner Level 2017; 1st Place Elementary Category, UMC Wonosobo Competition 2017. Edy Kuswoyo, Raisya's father, sees her growing more independent, with increasingly developed and creative calculation skills, and better mental, social, and organisational abilities. Raisya's journey reminds us that when children are given room to learn, achievement grows together with strong character — success is not only about winning, but about growing into your best self.”
Raisya Arandella
Mental Arithmetic Abacus Student · UMC Indonesia — Wonosobo
Moments of learning and achievement.
Class activities, national competitions, and celebrations of our students' success.
Documentation of UMC Indonesia activities: classes, mental arithmetic competitions, and family events.
MEGABRAIN — Contoh Karya Siswa
Kegiatan UMC Indonesia
MEGABRAIN — Contoh Karya Siswa
Kegiatan UMC Indonesia
MEGABRAIN — Contoh Karya Siswa
Kegiatan UMC Indonesia
I-MATHS Goes to School
Kegiatan UMC Indonesia
I-MATHS Goes to School
Kegiatan UMC Indonesia
I-MATHS Goes to School
Kegiatan UMC Indonesia
I-MATHS Goes to School
Kegiatan UMC Indonesia
I-MATHS Goes to School
Kegiatan UMC Indonesia
Mulai percakapan
It's time to invest in your child's future.
Don't wait until your child feels that math is hard. Give them a learning experience that makes them happy, confident, and ready to face future challenges. Join UMC Indonesia today!