A free app for Android, by Tâm An Group.

This application is an educational software that can be used as an aid to help children learn to count, calculate, add, subtract, multiply, and divide. It is intended for children in the sixth grade.

The application has an interactive interface that allows the user to choose from different exercises to practice the skills they have already learned. It also provides them with a visual illustration of the exercise and an example of how to perform it.

This application is a tool that can be used to help children in the sixth grade learn mathematics. The user can choose from different exercises to practice the skills they have already learned.