About Math Ninja
Math Ninja is striving to make all children succeed in a math, by making them a math warrior.
Our History
Math Ninja is founded in San Francisco, CA in 2017. Our Founder has been in the high-tech business in Silicon Valley and saw the current trend of employment. While the qualified engineers are mostly from overseas, we found a fact the American elementary school-aged children need to catch up on the level of math skills than their counterparts possess in other industrial and emerging countries, to be more competitive. To improve their basic math skills by utilizing the Soroban to teach calculation and mental calculation. The Japanese abacus, called, “Soroban”, was modified into the modern configuration. It has five-beads in each column, one-bead in the upper deck and four-bead in the lower deck. The Soroban/Abacus helps to perform mainly addition, subtraction, multiplication, and division.


Our Vision
The soroban has been an excellent educational tool for children to visualize numbers. In addition, practicing soroban gives people an opportunity to develop their mental calculation ability. After mastering the soroban, the student will not need a calculator and become capable of calculating numbers by visualizing soroban beads. By cultivating the ability of mental calculating skills in pre-school and elementary students, they will have a better understanding of more complex problems in math by developing great concentration. As a result, they have a good school record not only on math but also on other subjects. As this proves, soroban is not just a calculation tool, but an excellent instructional tool itself.
Our Mission
Math Ninja is striving to make all children succeed in a math, by making them a math warrior. So that no child needs to struggle with the math fatigue. We provide a gamification element of fun to mental calculation. We believe, If the child succeeds in math, they gain self-confidence to achieve higher in other subjects academically, and then become a contributing member of the society.
Math Ninja’s goals:
- Foster a child’s confidence in the calculation.
- Develop a mental calculation skill.
- Enhance problem-solving capability.
- Improve memory capacity.
- Improve focus and mental endurance.

Our Team

Reiko Yamamoto
Founder/CEO & Board of Director

Brooke Prairie
VP & Board of Director

Stevie Dimitre Albert
VP of CX & Board of Director
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Camilla B. Thomas
VP of Marketing & Board Member
Camilla serves as the vice president of Marketing and is a board member. She has an background in digital marketing and has spearheaded marketing initiatives for Microsoft, and currently works for Adobe Systems driving world-wide strategy for search marketing campaigns. She has a fierce passion for education. Camilla received her BS in Business Administration Management with a concentration in Marketing from San Francisco State University.