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双位数乘法——印度口诀秒解
龙翔撰写
2014-09-26
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《力学园地》编辑部:

在你们网站里读过一篇文章,介绍了中国古代的算筹和筹算,很有意思。能不能再介绍一些其他文明古国在数学方面的情况呢?                                                    读者 天鱼儿                             2014-07-25

双位数乘法——印度口诀秒解

近日来,网上流传着一个“印度乘法口诀”。和我们中国的乘法表不同,这个乘法表延伸到19以内,即所谓“19*19”乘法表。尽管其难度比“九九乘法表”更高,但配合特别的方法,却是更容易心算出正确的答案。

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Document Type科普文章
Identifierhttp://dspace.imech.ac.cn/handle/311007/49110
Collection力学园地
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龙翔撰写. 双位数乘法——印度口诀秒解. 2014.
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