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数学小升初考点例题_新GRE数学考点总结例题解析

  gre考试分为写作、阅读和数学等多个部分,出国gre频道根据gre考试题型构成,为各位考生提供了这几个方向的复习资料,欢迎大家参考借鉴。

  新GRE数学考试要求的是中学的数学知识,考生们对于新GRE数学上面来说还是比较有把握,不过说到具体的GRE数学考点要求就不一定这么清楚。下面就为大家介绍新GRE数学考点及这些GRE数学考点解析,帮助考生们系统的复习一遍新GRE数学,梳理整合新GRE数学考试所需要的知识。

  GRE考试数学考点:Subtracting Monomials

  Subtracting Monomials

  To subtract a monomial from another of the same variables just subtract the coefficients. Only two like monomials can be subtracted from each other.

  Example:

  By subtracting 3x from 4x, we get (4-3)x=x.

  By subtracting 3xy from 2xy, we get (2-3)xy=-xy.

  By subtracting bx from ax, we get ax-bx=(a-b)x.

  Remember:

  Monomials can be subtracted only if they have the same variables with identical powers.

  GRE考试数学考点:Combinations of Choices

  Combinations of Choices

  If there are n choices for one type and m choices for second type, then number of combinations for both types is the product of choices:n*m.

  Example:

  If there are 3 kinds of breads to choose from and 4 kinds of meats, then we can make 3*4=12 different sandwiches.

  If an alphabet has 26 letters, then the number of possible 2 letter word is 26*26=676.All of them may not be vaild words.

  Remember:

  Do not add the choices to get the total combinations.

  The product rule can be applied to more than two types of choices: if there are 3 kinds of breads, 4 kinds of meats, and 6 kinds of cheeses, then we can make 3*4*6=72 different sandwiches.

  以上就是新GRE数学考点及GRE数学考点解析的介绍,希望这些知识点的介绍可以帮助大家复习新GRE数学,为大家复习新GRE数学提供条件。希望考生们认真复习新GRE数学考试,能够取得自己理想的成绩。

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