Hoidap247.com is a community of questions and answers and answers to all subjects and classes of high school students all over Vietnam. Users can submit questions in Mathematics, Physics, Chemistry, Biology, History, Geography, Literature, English, Technology, Informatics, Citizen Education, Music and Fine Arts ... from grade 1 to grade 12 completely free.

The response speed of the questions is usually less than 10 minutes, the answer quality is controlled well, in addition Hoidap247.com has a team of experts who are specialized students, subject teachers to answer questions. exercise.