Showing 1–20 of 1,000 ranked alternatives.
Hirokazu Komatsu
Use , customize size and position, adjust
Use an with customizable size, position, and color settings. Perform calculations up to 15 digits. Challenge addition, subtraction, multiplication, and division problems. Adjust bead sounds and screen orientation for horizontal use.
Jumpei Adachi
Play abacus, create problems, practice calculations
Use the touch screen to simulate abacus operations. Create and solve arithmetic problems manually or with the abacus. Track progress and practice calculations using both methods.
Hirokazu Komatsu
Learn addition and subtraction with Soroban
Learn addition and subtraction using a Soroban . Move beads to perform calculations. Practice basic math operations. Track progress with interactive exercises. Sync with devices for continued learning.
Ventura Educational Systems
Learn to count and perform arithmetic
Learn basic arithmetic and place value concepts using an interactive simulation. Manipulate beads to perform addition and subtraction. Adjust bead positions for different calculations. View step-by-step guidance for counting and operations.
Takahiko Nakade
Practice problems and abacus exercises
Select problem levels from multiple difficulty categories. Practice abacus skills with targeted exercises. Track progress and adjust difficulty as needed.
Kittipong Mungnirun
Learn , count, add, subtract
Learn basic counting and arithmetic using an . Perform single-digit addition and subtraction. Practice number recognition and counting skills. Track progress with interactive exercises and visual aids.
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