均以5为尾数的两整数之积的简化算法

A Simplified Algorithm for the Product of Two Integers with a Mantissa of 5

本文建立了均以5为个位数的两整数相乘的简化算法,特别方便口算、速算,在实际社会生活中具有一定的应用价值。

This paper establishes a simplified algorithm that multiplies two integers with a single digit of 5,which is especially convenient for oral calculation and quick calculation.It has practical application value in social life.