Happy Mathematics is a publication headed by Phoenix Publishing Media Group and sponsored by Jiangsu Children's Publishing House. Facing the primary school students all over the country, expanding their learning for primary school students. Although the magazine is the main subject for primary school students, it is a good book with the aim of "cultivating mathematics interest, exercising problem-solving thinking and enriching after-school life", insisting on originality and introducing international advanced education and publishing concepts. Whether it is useful or not depends on children's own learning and understanding. But parents care about their children's growth, and this book can still be used as a study guide. Subscribe to a grocery store.