Calculation Training

Calculation Power Training is a brain-training app designed for everyone—from elementary school children to seniors. With simple, game-like controls and a variety of math problems to choose from, you can sharpen your mental math skills anytime.

The app eliminates unnecessary features so you can fully focus on mental calculation practice. It’s perfect for elementary math practice, a quick brain warm-up before studying, or mental exercise to help maintain cognitive health as you age.

- Choose Your Calculation Training

Practice the four basic arithmetic operations that form the foundation of math. You can focus on a single type of calculation or challenge yourself with a mixed set covering all types.

+ Addition

+ Subtraction

+ Division

+ Multiplication

+ Mixed Arithmetic (All Operations)

+ Expressions with Two Operators

- Selectable Difficulty Levels

Choose from five difficulty levels, ranging from Easy to Very Hard.

By selecting a level that matches your ability, you can train efficiently and progressively improve.

As you continue solving problems, your skill level will naturally increase—leading to faster calculation speed and improved mental math performance.

- Multiple Training Modes

The app features three calculation training modes.

Your personal best score is recorded in every mode, allowing you to track your improvement over time.

◆ Time Limit Mode

Solve as many problems as possible within a set time limit.

The time limit can be adjusted from 20 to 300 seconds in 10-second increments.

Perfect for quick practice sessions or longer, focused training—customize it to suit your needs.

◆ Question Limit Mode

Challenge yourself to solve a fixed number of problems as quickly as possible.

The number of questions can be set from 10 to 300 in increments of 10.

◆ Endless Mode

Each correct answer extends the remaining time.

Keep answering quickly and accurately to solve more problems and achieve a higher score.

- Flexible Input Options

For multi-digit answers, you can choose whether to enter numbers starting from the highest or lowest place value.

Two different keypad layouts are available, allowing you to select the one that feels most comfortable.

- Online Rankings

Supports score rankings through Google Play Games.

Compete with players around the world and test your calculation skills globally.

In Time Limit Mode, longer time settings yield higher scores.

In Question Limit Mode, selecting more questions results in higher scores.