そろばんノート - 珠算・暗算練習

Abacus Notebook is a learning app that allows you to practice abacus calculation and mental arithmetic, take mock exams, create problems, and record your progress all in one place.

You can practice using an abacus on your smartphone or tablet screen, solve problems using a real abacus, and create your own problems by selecting conditions.

Main Features

* Introductory Lessons: Practice from the basics, including reading the beads, placing numbers, addition, and subtraction.

* Screen Abacus: Practice creating numbers by directly operating the abacus on your smartphone or tablet.

* Real Abacus Practice: Use a real abacus while checking problems and answer inputs on the screen.

* Mock Exams: Choose your level and subject and practice under time pressure. You can check your score after completion.

* Problem Creation: Create problems tailored to your practice by selecting the subject, number of digits, number of words, number of questions, etc.

• Records
You can record the results of practice, question creation, and mock exams, and review them later.

Basic functions are available for free.

All functions can be unlocked with in-app purchases.

This app is not an official app of any certification body. It consists of original questions based on publicly available formats.