A very simple brain game!

In everyday calculations, we seek answers.
In this game you have the answer.

This is a brain game where you think of four arithmetic operations using three numbers: the left side, the right side, and the answer.

Even if you're good at calculations, it's sure to be a good exercise for your brain as it's a different calculation than usual!

[People who want to use it]
・People who like calculations
・People who want to do brain exercises
・People who want to kill time
・People who like games
・People who like numbers