乘法速算的统一算法设计

he rapid Calculate skill of two number’s multiply has always been the focus of the study,for it has a very wide range of applications in real life. Whereas there is no universal Algorithm. Therefore, This paper present a common and uniform of rapid calculate algorithm,P-C Algorithm, which, in fact, is summarized by the discrete skill of two number’s rapid multiply Calculate from the past. Therefore, the algorithm, not only be fit to decimalist but also others,to rapid Calculate about two or more than two decimal number’s multiplicated,which is also analyzed through a lot of examples. The algorithm is simple and highly efficient ,which is quite different from the process about of two number’s multiply is vertical methods in the past, so it can give a rapid Calculate way or mental arithmetic about two or more larger number’s multiplied become possible