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.

Users can ask questions by taking photos and then post them, or search questions by scanning photos, the system will automatically identify and give the best or relevant questions for users to refer to.

In addition, users can participate in answering questions to receive a lot of valuable mobile scratch cards and special gifts each month. Students can register to join the Hao Hao Squadron to help others, then have the opportunity to be promoted to Mod - specializing in handling reports of violations and receiving the entire course. online at Tuyensinh247.com worth nearly 30 million VND.

Joining the Hao Hao Squadron and the Mod Hoidap247 team will have the opportunity to exchange and chat with other excellent students across the country, are widely recognized and have the opportunity to win interesting titles. and especially on Hoidap247.

Please install the application "Hoidap247.com - Answer exercises" on your phone to help you complete the exercises from easy to difficult anywhere and anytime.