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一、乘法笔算的历史演变乘法是加法的特殊情况,重复进行同一个数的加法运算就产生了乘法,对这种重复计算的不同处理,就产生了不同的乘法计算方法。早在古埃及纸草书上就记载着一种乘法——倍乘法,也就是先加倍计算,然后组合不同的倍数和从而完成计算(见图1)。虽然倍乘法不具有现代笔算乘法的形式,但在几千年笔算乘法的历史进程中体现了旺盛的生命力。1546年,德国数学家施蒂费儿
First, the historical evolution of multiplication Penultimate multiplication is the special case of addition, repeated the same number of additions to produce a multiplication, the duplication of this different treatment, there have been different multiplication method. As early as ancient Egyptian paper cursive book on a kind of multiplication - multiplication, that is, double the calculation, and then combine different multiples and thus complete the calculation (see Figure 1). Although the multiplication method does not have the form of modern pen-and-forget multiplication, it has demonstrated its vitality in the historical process of thousands of years of pen-sum multiplication. In 1546, the German mathematician Stefania