You must complete an expression with a choice of three numbers and marks.
A problem is ten questions. And I compete for time.
It is brain training!! It is a simple puzzle game.
Anayway, play and enjoy it!!
Version history
2.0.1
2023-01-25
In this version, Bug fixes and performance improvements.
2.0.0
2022-12-27
In this version, Bug fixes and performance improvements.
1.1.0
2020-04-16
In this version, it supported screen size after iPhoneX.