I'm learning to calculate简介

The app "Learn to calculate" contains 27 mini-games, with which the natural numbers are introduced. It's the perfect way for your child to learn how to handle numbers. 该应用程序“学会计算”包含27个迷你游戏，与自然数进行了介绍。 这是为您的孩子学习如何处理数字的完美方式。