《普通高中数学课程标准(实验)》中对运算求解能力的要求是:“会根据法则、公式进行正确运算、变形和数据处理,能根据问题的条件,寻求与设计合理简捷的运算途径。”可见课标对高中生的运算能力要求比较高。高中生的运算能力也是高考中重点考查的基本能力之一。随着素质教育的推进,高中生的计算能力却逐渐在减弱,具体表现在学生对根式类题、三角函数类题、对数类题等不熟练;对稍复杂的含有字母式子的运算题型有畏惧心 “Ordinary high school mathematics curriculum standards (experiment)” in the ability to solve the arithmetic requirements are: “will be based on the law, the formula for correct operation, deformation and data processing, according to the conditions of the problem, to seek and design a reasonable and simple computing route. ”Visible course requirements for high school students computing power is relatively high. High school students’ computing power is one of the basic abilities of the college entrance examination. With the advancing of quality education, the computational ability of high school students is gradually weakened, which is manifested in that students are not familiar with the root type questions, the trigonometric function type questions, the logarithmic category questions, etc. For the more complicated arithmetic problems with alphabetical expressions Have a fear of type