SumzUp® Soroban Abacus Lessons

Master Mental Math with the Soroban! Practice Arithmetic, Build Confidence, and Train Your Brain with SumzUp®!
Boost your arithmetic and soroban skills with SumzUp®, a powerful math learning app based on the soroban (Japanese abacus). Whether you struggle with dyscalculia, math anxiety, or just want to improve your mental math, SumzUp helps learners of all levels succeed.

What You'll Learn and Practice:
• Mental math using the soroban, a Japanese abacus
• Step-by-step techniques for number recognition, addition, subtraction, multiplication, and division
• Personalized mental math exercises to sharpen number sense and math confidence

Features You'll Love:
• Game-like exercises and challenges that make arithmetic practice fun
• Adaptive difficulty to match your skill level
• Designed with input from dyscalculia experts and learners with math challenges
• Step-by-step lessons to become a soroban master
• Great for kids, adults, and learners of all levels
• Visual, tactile, and memory-based soroban lessons

Why Soroban?
The Japanese abacus (soroban) helps you build fast, accurate mental math through tactile, visual, and memory-based learning. It’s used worldwide to improve cognitive flexibility and number sense and accuracy.

Whether you're improving basic arithmetic, overcoming math anxiety, homeschooling, looking for brain-boosting activities, or building fast mental math skills, SumzUp makes learning arithmetic fast, intuitive, and empowering.

With game-like soroban training, SumzUp helps you build the foundation you need to become a soroban master.

Originally created to support those with dyscalculia and other math difficulties, SumzUp has grown into a powerful tool for anyone ready to master mental math and build confidence and accuracy through easy-to-understand math questions— one bead at a time.

Built by one, refined by many with dyscalculia.