暗算マスター – そろばん式暗算・脳トレ

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About this app

Mental Arithmetic Master | Abacus-Style Mental Arithmetic, Calculation Drills, and Brain Training App

[From abacus exam preparation to daily brain training!]
Mental Arithmetic Master is a mental arithmetic and calculation app that allows you to fully practice "abacus-style mental arithmetic," which involves visualizing abacus beads in your mind.

It's perfect as a math app for children to solidify their calculation fundamentals, and also as a brain training app for adults.

The key to mental arithmetic speed is determined by your single-digit calculation speed.

Using the abacus's complement system,
it efficiently trains your mental arithmetic ability, concentration, and processing speed.

◆ Mental Arithmetic Master Features
1. Single-Digit Calculation Time Attack (Basic Training)
What actually determines your mental arithmetic speed isn't how quickly you jump to large numbers, but rather how quickly you can judge "single-digit combinations." By accelerating this to an unconscious level, you build a "mental arithmetic foundation" that allows you to smoothly perform even complex mental calculations.

2. Free Customization (Abacus, Multiplication, and Division)
You can freely set the number of digits, number of problems, and time limit to suit your level. Whether you want to focus on just three-digit addition or want to overcome your weakness in division, you can use it as a personalized math drill.

3. Full-scale Test Mode
Take a real-life test based on the standards of the abacus and mental arithmetic tests (Grades 10 to 1, ranks).

4. "Read-aloud arithmetic" for ear training
Supports voice reading. Hearing numbers is instantly processed in the brain, allowing for more practical mental arithmetic training.

◆ Recommended for:・Those aiming to pass the abacus or mental arithmetic test (levels 10 and above)
・Those who want to solve single-digit calculations, the foundation of mental arithmetic, more accurately and quickly
・Parents who want their elementary school children to learn arithmetic and calculation in a fun way
・Those who want to reduce calculation errors and improve speed in preparation for junior high school entrance exams
・Those who want to exercise their brains using numbers to train their brains and prevent dementia
・Those who want to quickly do mental arithmetic when shopping at the supermarket or paying at the register

◆ Develop lifelong calculation skills with just 5 minutes a day.

Those who want to excel in arithmetic and mathematics, or those who are serious about improving their mental arithmetic skills.

Experience authentic calculation training based on a proven method with "Mental Calculation Master"!

What’s new

補数チャレンジにグラフ機能追加