心算步数－心算口诀天天练 app for iPhone and iPad

4.6 ( 2736 ratings )

Entertainment
Developer: QiuLong Zhou

Free

Current version: 1.3, last update: 8 years ago
First release : 28 Jun 2016
App size: 9.51 Mb

Through your eyes and intuitively calculate the distance between the ball and its corresponding destination. Each ball speed is the speed of from 1 to 10, 1 is the slowest, 10 is the fastest speed. Choose all the balls speed, allowing them to arrive at their destination at the same time you can win