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1加到90等于多少
更新时间: 2020-11-04 00:00:00  

用高斯算法:1+90=91,2+89=91,共90/2=45对,应该是:91*45=4095。

数学(mathematics或maths,来自希腊语,“máthēma”;经常被缩写为“math”),是研究数量、结构、变化、空间以及信息等概念的一门学科,从某种角度看属于形式科学的一种。数学家和哲学家对数学的确切范围和定义有一系列的看法。

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