我们知道,初中数学中的运算主要是加、减、乘、除和乘方、开方以及指数运算等,在现代数学中运算种类更多,特别是电子计算机的运用,使运算的内容更为丰富.纵观近年各地中考题,出现了一种定义新运算规则、给出一些新定义的运算符号从而推导出运算方法的题目,解答这类问题的关键是理解新运算的定义,严格按规定的计算法则代入计算,把定义新符号运算转化为熟悉的加、减、乘、除和乘方、开方以及指数运算.这种从未知到已知的思维过程,就是一种很好的转化数学思想的考 We know that arithmetic in junior middle school mathematics mainly includes addition, subtraction, multiplication, division and exponentiation, prescribing, and exponential arithmetic. In modern mathematics, there are more types of operations, especially the use of electronic computers, so that the contents of operations are more Abundant.Throughout the examination questions all over the country in recent years, there has been a definition of new computing rules, given a number of newly defined symbols to derive the arithmetic problem, the key to solving such problems is to understand the definition of new computing, in strict accordance with the provisions Calculation algorithm into the calculation, the definition of the new symbol operation into a familiar addition, subtraction, multiplication, division and power, the square root and the exponential operation. This unknown to the known thinking process is a good conversion Examination of Mathematical Thought