價格：免費
檔案大小：15.6 MB
版本需求：需要 iOS 12.2 或以上版本。與 iPhone 6s、iPhone 6s Plus、iPhone SE、iPhone 7、iPhone 7 Plus、iPhone 8、iPhone 8 Plus、iPhone X、iPhone XS、iPhone XS Max、iPhone XR、12.9 吋 iPad Pro、12.9 吋 iPad Pro Wi-Fi + Cellular、iPad Pro（9.7 吋）、iPad Pro（9.7 吋）Wi-Fi + 行動網路、iPad (第 5 代)、iPad（第五代）Wi-Fi + 行動網路、iPad Pro（12.9 吋)（第二代）、iPad Pro（12.9 吋)（第二代）Wi-Fi + 行動網路、iPad Pro（10.5 吋)、iPad Pro（10.5 吋）Wi-Fi + 行動網路、iPad （第六代）、iPad Wi-Fi + Cellular（第六代）、iPad Pro（11 吋）、iPad Pro（11 吋） Wi-Fi + 行動網路、iPad Pro（12.9 吋)、iPad Pro（12.9 吋）Wi-Fi + 行動網路、iPad mini（第 5 代）、iPad mini（第 5 代）Wi-Fi + 行動網路、iPad Air（第 3 代）、iPad Air（第 3 代）Wi-Fi + 行動網路 及 iPod touch (第 7 代) 相容。
支援語言：英語
There are so many didactic strategies that allow teachers to teach mathematics, the abacus for example, is a vital tool to initiate students in the world of basic operations, addition and subtraction.
The augmented reality creates a new possibility to improve and learn new things every day, so we want all schools and universities use mobile devices properly and teach their students how to add and subtract with a 3D abacus.
Each part of the addition and subtraction process is designed to be carried out step by step and with rings of colors you can identify the units, tens, hundreds and thousands, so you can guarantee a better understanding and a real learning.
支援平台：iPhone, iPad