價格：免費
更新日期：2019-06-19
檔案大小：12.3 MB
目前版本：2.0
版本需求：需要 iOS 9.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：俄文, 德語, 英語
Using this app you will learn to do some multiplying of small numbers (till 12) without using the multiplication tables.
This app presents only a part of the Trachtenberg system - a new way to do basic multiplication. The important benefits of this system are greater ease, greater speed, and greater accuracy. The Trachtenberg system, once learned, can take the drudgery out of the arithmetic that is part of your daily stint.
支援平台：iPhone, iPad