脳トレ暗算　四則計算　4択問題　1桁2桁3桁　

It is a mental arithmetic 4-choice game that does not require explanation.

The difficulty level is from 1 to 3 digits, and there are 12 stages of addition, subtraction, multiplication, and division.

It is an incandescent time trial with 10 questions per game. There is a ranking function.

You can train your mental arithmetic while playing.

The best game for those who learn the four arithmetic operations from now on.

A simple and perfect game for dementia prevention.

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Recommended for people like this.

: People who want to learn arithmetic from now on.

: People who want to learn math while playing.

: People who like math, people who are not good at it.

: People who like hyper-casual games.

: People who like short games.

: People who want to play the game without paid items.

: People who don't want to play online.

Difficulty of this game: Super Easy to Normal