A math game where users solve addition, subtraction, multiplication, and division problems within a 20-second time limit. Select symbols to input answers in a hatena box. Compete with friends for correct answers and track progress.
Teach children through interactive games and quizzes. Select words by level. Track progress and review words with flashcards. Reinforce learning with audio pronunciations and examples.
1300 essential HSK 5 vocabulary words with flashcards and spaced repetition. Practice with quizzes and word lists. Support both simplified and traditional Chinese characters. Track progress and review words for retention.
