價格：免費
更新日期：2016-11-21
檔案大小：1.1 MB
目前版本：2.1
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：日語, 英語
This App "Reverse one digit +-x÷" is a arithmetic training App. And this is a searching game, too. This App is a Reverse version of my App "one digit +-x÷";
This App has four categories, addition:"Reverse one digit +" subtraction:"Reverse one digit -" multiplication:"Reverse one digit x" and division:"Reverse one digit ÷". Each category has 9 questions on nine stages, random 81 questions.
ex.
"one digit +" : Find '4 + 8' from '12'.
"one digit -" : Find '10 - 6' from '4'.
"one digit x" : Find '9 x 9' from '81'.
"one digit ÷" : Find "12 ÷ 3" from '4'.
支援平台：iPhone, iPad