價格：免費
更新日期：2020-05-07
檔案大小：20.2 MB
目前版本：1.08
版本需求：系統需求：iOS 10.0 或以後版本。相容裝置：iPhone、iPad、iPod touch。
支援語言：英語
Easy math game for kids.
Given random four digit integer, e.g. 6591.
Subtract one from each digit, output four new digits, i.e. 5480.
Write it as fast as you can in 60 seconds.
Get as many as correct answers.
Correct answer, earn plus 1 point.
Incorrect answer, deduct minus 1 point.
Brain, eyes and finger productivity.
Leaderboard is given by the Game Center.
Include Add by one and leaderboard.
Given random four digit integer, e.g. 6591.
Add one from each digit, output four new digits, i.e. 7602.
支援平台：iPhone, iPad