About this game
It is a brain training game that looks like a game & watch. Choose an operator in the blank so that the calculation results match.
How to play
Start by pressing the “EASY” or “HARD” button on the top right.
Press the operator buttons on both sides of the screen so that the formula displayed on the screen is equal.
If correct, go to the next. If you make a mistake or the time is up, the game is over.