價格：免費
更新日期：2017-10-09
檔案大小：22M
目前版本：1.3
版本需求：Android 4.1 以上版本
官方網站：mailto:denis.skidanov@gmail.com
Email：https://docs.google.com/document/d/1sz3_CxCKrk5tIyjBv_3PVXxG141WpbhlgDli222705k/edit?usp=sharing
聯絡地址：Украина, г. Днепр, ул Кедрина 40
Teaching addition, subtraction, multiplication, division for children. Teach children arithmetic. For schoolchildren and preschool children of primary classes (1st grade, 2nd grade, 3nd). A merry study of mathematics.
