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重点难点易混易错点剖析复习重点:分式在河南中考中每年都设置1道题目,分值为3~8分,在填空题和解答题中考查,以解答题为主,题目难度适中.要求会根据分式的意义、性质及加、减、乘、除运算法则对分式进行化简和运算.复习难点:分式的化简求值.易混易错点:(1)应用基本性质时只把分式的分子或分母乘一个整式.(2)运算时忽视了分数线具有括号的作用.(3)当同时含有乘除运
Key points difficult to misuse Analysis of the wrong points Focus: Fraction in Henan senior high school entrance examination every year to set a problem, the score is 3 to 8 points in fill in the blank questions and answer questions in the test to answer the question-based, subject difficulty moderate. Requirements will be based on the meaning of the fractional, and add, subtract, multiply, divide the operation of the fractional simplification and operation. Review difficulties: fractional reduction of the value. Easy to mix and error points: (1) the application of basic Property only fractional numerator or denominator by an integer. (2) operation ignores the fractional line with the role of brackets. (3)