在数学竞赛中,常出现一种含特殊运算符号的题目.这类题一般难度并不大,主要是考查知识的迁移能力.解这类题时,必须对规定的运算意义进行准确的理解,按照定义将它转化为通常的加、减、乘、除、乘方等我们熟知的运算.下面举例说明. In mathematics competitions, there is often a question with special arithmetic symbols. Such questions are generally not difficult, mainly to examine the ability of knowledge transfer. When solving such questions, we must accurately understand the meaning of the specified operation. According to the definition it will be converted into the usual addition, subtraction, multiplication, division, power and other well-known operations. The following examples illustrate.