Soroban: Abacus & Mental Math

[Supervised by Satsuki Abacus Dojo] Learn the abacus (soroban) with video.

Learn the soroban under the supervision of Satsuki Abacus Dojo, an active abacus school in Osaka, Japan — a member of the Japan Abacus Federation with a proven record, including perfect-score wins at the Kinki Regional Soroban Championship (1st in Kinki) and the 2024 "Osaka No.1 Soroban" tournament. Real teaching know-how is built into the app.

From children touching a soroban for the first time to advanced learners mastering mental math and flash anzan — watch every bead movement in the video lessons and build calculation skills from the ground up. Great before a soroban class, for review alongside class, or for learning the abacus at home.

■ What you can achieve

• Do mental math: calculate numbers quickly in your head with soroban-style mental math and flash anzan.
• Calculate faster and more accurately: from addition to division, skills grow with daily practice.
• Grow focus and number sense: solving problems one by one builds concentration, a feel for numbers, and perseverance.
• Keep going at home with class-quality lessons supervised by a real dojo — even beginners can keep learning as if in class.

■ Who it's for

• Beginners who want to start the abacus, or are considering it as a lesson
• Anyone who wants faster, more accurate mental math and flash anzan
• Parents using the abacus for a child's education and home learning
• Learners who preview/review a soroban class, or can't easily attend one
• Anyone aiming to pass mental-math / abacus exams
• Adults who want brain training and stronger calculation skills

■ Main features

[Video Lessons] (supervised by Satsuki Abacus Dojo) Learn soroban basics on video — many lessons for addition, subtraction and multiplication. See exactly how the beads move, so even beginners progress as if taught in class. Division videos coming soon.

[Soroban (Abacus)] Practice addition, subtraction, multiplication and division with step-by-step problems, from beginner to advanced. Daily practice steadily builds real ability.

[Mental Math & Flash Anzan] Soroban-style mental math, sight reading, mental multiplication and division. With flash anzan, add up numbers flashed one after another — great practice for mental-math and abacus exams.

[Dictation Calculation] Full dictation calculation with read-aloud in Japanese, English and Chinese. Create your own problems and download audio. Train listening and mental math at once.

[Slip Calculation] Swipe to flip slips in proper slip-calculation style and build practical calculation skills.

[Times Tables (ages 5+)] A chart, a song and practice problems (in order, random, fill-in-the-blank) make multiplication stick. A great step before the abacus and for elementary math.

[Number Play (ages 2+)] 12 number games let little ones enjoy getting familiar with numbers, with read-aloud of numbers and questions — perfect for early learning.

■ About Satsuki Abacus Dojo With the philosophy "delivering excellence to the future," the dojo values face-to-face soroban education, with individual guidance from first-time basics to a competitive team course. This app recreates that method under the dojo's supervision, so you can study at home with the same approach as in class.

■ FAQ Q. I don't have an abacus at home. A. You can operate a soroban on screen, so you can start without a physical one.

Q. I'm a complete beginner. A. Video lessons supervised by the dojo teach you from how to move the beads — start with confidence.

Q. Can I use it with my soroban class? A. Yes — perfect for previewing and reviewing class, and adding home practice.

Q. What ages can use it? A. Number Play from age 2 and Times Tables from age 5; the soroban suits children comfortable with numbers, from kindergarten up.

Through daily practice, steadily build your abacus and mental-math skills.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/