Randomly generating subtraction problems within 10 is a very effective math training method suitable for elementary school students. Through randomly generated problems, students can continuously practice and improve their arithmetic skills while cultivating mathematical interest. During practice, students can gradually master the basic skills of subtraction within 10, and as practice continues, the difficulty increases, improving students' math levels. Using the method of randomly generating problems ensures that each practice session has different problems, thereby maximizing students' mathematical abilities.