Giải toán lớp 4 is a free application that provides guidelines for the math homework of 4th-grade students. This application is based on the latest edition of the Textbook of Mathematics for 4th-grade students, and it includes all the questions that are asked in the textbook. This application is a tool that helps the students to understand the concepts in the mathematics textbook and to practice the skills that are necessary for the students to get a good mark in the exams.

The app consists of two sections. The first section contains guidelines for math homework and the second section contains a series of practice questions.