In this paper, the intention and the extension of mathematical recreations are defined at first, respectively. Then we classify the recreations into four classes: numerical recreations, recreations in shape, mathematical games and logical recreations. After that, we summarizes the rules of the evolution of mathematical recreations by emphatically analyzing and comparing their spread, expression, conditions of being current and present situation. Moreover, the paper uses the past for reference and discusses how to use the best methods to promote the propagation and development of knowledge that is correlated with the recreations by using them. In addition, the thesis deals with four functions of the recreations in detail and offers several ideas of bring them into full play. At last, we study the significance and the developmental trend of them on mathematical popularity and education.
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