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读了这本书我学到了许多关于数学的知识。这本书主要讲的是讲数字与数字之间的关系。比如斐波纳契数列、平方数、三角（形)数、立方数、完全数、质数和合数等等的关系。而且本书语言生动有趣，内容易理解。适合小学生阅读。
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