一年级加减乘除天天练-小学数学口算好帮手 app for iPhone and iPad
This app is a math learning software designed for preschool and elementary school children, including addition subtraction multiplication and division within 20/50/100. It is an indispensable tool for improving the computing skills in kindergartens and primary schools. It is the best choice for quick-acting, oral, and mental arithmetic training.