اباكوس | لعبة الحساب الذهني 对比 Know Abacus 的使用情况和统计数据

Abacus is a wonderful mathematical instrument used for calculation. This app will help your children learn about Abacus, Numbers, Counting, Addition, and Subtraction. This is the first step to tap the unexploited potential in their brain and unleash their mathematical capability. Suitable for children age 5 and up, who know about numbers and some basic addition and subtraction. For smaller children, recommend KnowNumber app. * Counting with Abacus * Addition/Subtraction 1 digit * Addition/Subtraction 2 digits * Multiplication 1-2 digits * Division 1-2 digits * Mental math * Review lessons * Unlimited random lessons * Black/white or colorful abacus * Learning modes * Two-touch or multi-touch abacus * Left-handed mode Localized Languages: * English, French, Spanish, Thai, Turkey, Arabic, Portuguese, and Russian