How old is Liu Xunyu's book suitable for children? Liu Xunyu's Three Mathematical Works

1, Liu Xunyu's book is suitable for primary and secondary school students over 8 years old.

2. "Interest in Mathematics" is a popular mathematics classic written by Mr. Liu Xunyu, a famous mathematics educator, for primary and middle school students. All the mathematical articles collected in this book come from the author's daily life. The boring, complicated and troublesome mathematical themes and algorithms that are close to people's daily life have become interesting and readable words through the author's clever writing.

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