價格：免費
更新日期：2014-10-04
檔案大小：26.1 MB
目前版本：2.5.1
版本需求：需要 iOS 6.1 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：俄文, 土耳其文, 德語, 捷克文, 日語, 法文, 波蘭文, 瑞典文, 簡體中文, 繁體中文, 義大利文, 英語, 荷蘭文, 葡萄牙文, 西班牙文, 韓語
Mental Math Challenge: Add and Subtract app is the most challenging app for mastering addition and subtraction problems. This app is useful for all ages. Take the challenge and become a champion in addition and subtraction operations. Whoever become a champion in this challenge will be able to add and subtract with lightening speed.
Mental Math Challenge: Add and Subtract Features:
-Step by step instructions for easy mental addition and subtraction.
-Separate lessons for 2 digit, 3 digit and 4 digit number operations.
-Very interesting and easy to remember math tricks.
-Challenging tests that have levels and achievements for motivation.
-Each test has 3 levels with increasing difficulty.
-Will be very useful for kids going for oral math quizzes
-Will increase number sense in kids
支援平台：iPhone, iPad