Operate four random integers [1..13] with +,-,*,/ operators so that the end of result is 24. Features with displaying the problem difficulty, timer, providing one of answers.
轻松切水果--全新设计3D游戏
沃克斯的3D方块建造
火柴棒动动脑
三国的霸业
Rop Jump
光明流浪者
逃脱罗宾与传说之虹
像素艺术