Learn abacus from scratch with this educational app. It offers clear explanations for beginners, including visual aids for adding and removing beads. Advanced users can test their skills in challenge modes.
そろばん問題集 by takeshi inoue



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Learn abacus from scratch with this educational app. It offers clear explanations for beginners, including visual aids for adding and removing beads. Advanced users can test their skills in challenge modes.




This app is designed for serious practice of abacus calculation and mental abacus. It offers automatic scoring and re-presents incorrect problems for efficient learning. Practice with problems used by over 100 million people, covering all levels from beginner to advanced.