Math Learner Games

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