GRE数学要点
一、数学考察的范围
1.Arithmetic算术部分包括整数的性质和种类，比如整除性、因子分解、质数、余数、奇数偶数；算术运算、指数、根；估算、百分比、比、比率、绝对值、数轴、小数表达、数列。
2.Algebra代数包括指数运算；因式分解、简化代数式；函数、等式、不等式；解一次方程和二次方程、解不等式；解联立方程、方程组；用方程解决文字题；解析几何、函数图像、函数图像解方程和不等式、截距、斜率。
3.Geometry几何包括平行、垂直、圆、三角形、等腰三角形、等边三角形、306090三角形、四边形、其他多边形、全等和相似图形、三维图形、面积、周长、体积、毕达哥拉斯定理、角度计算。不考察证明的能力。
4.Data analysis包括描述统计学比如平均数、中位数、众数、极差、均方差、四分位差、四分位、百分位；分析图和表，包括折线图、柱状图、饼图、箱型图、散点图、频数分布；概率初步、合成事件、独立事件、随机变量、概率分布、正态分布；计数方法、排列、组合、维恩图。不考推论统计。
二、数学考察的题型
四种题型：
1.数值比较quantitative comparison questions
2.单选题 multiple-choice questions----select one answer choice
3.多选题 multiple-choice questions----select one or more answer choices
4.数值输入题 numeric entry questions
三、答题的注意事项
1.become familiar with the answer choices.
2.avoid unnecessary computations.
3.remember that geometric figures are not necessarily drawn to scale.
4.plug in numbers
5.simplify the comparison
6.use the fact that the answer is there.
7.examine the answer choices
8.for questions that require approximations, scan the answer choices to see how close an approximation is needed.
9.note whether you are asked to indicate a specific number of answer choice or all choices that apply.
10.in some questions that involve conditions that limit the possible values of numerical answer choices, it may be efficient to determine the least and/or the greatest possible value.
11.avoid lengthy calculations by recognizing and continuing numerical patterns.
12.make sure you answer the question that is asked.
13.if you are asked to round your answer, make sure you round to the required degree of accuracy.
14.examine your answer to see if it is reasonable with respect to the information given.
15.填空题几个注意：1要先点选输入框 2删除要用backspace 3负号就用那个连词符号 4如果要改成正的，再次输入连词符号就变成正数了 5计算器上的transfer display可以直接把计算器里得出的结果转到输入框里面 6 2.5和2.50是一样的 7 除非要求四舍五入，否则不要输入近似值 8如果是分数，一般分子和分母是两个独立的框 9分数不必须约分
16.scan the data presentation briefly to see what it is about, but do not spend time studying all of the information in detail
17.bar graphs and circle graphs, as well as other graphical displays of data, are drawn to scale, so you can read or estimate data visually from such graphs.
18.the questions are to be answered only on the basis of the data presented, everyday facts , and your knowledge of mathematics.
19.MR表示 memory recall, M+ 表示memory sum, MC 表示 memory clear.
20.当第一次按M＋，屏幕上显示的数字被纪录在计算器的内存里面，屏幕右边出现M字母，表示内存记忆被使用。以后每一次按M＋按键，都会把当前的屏幕上显示的数字加到内存的数字上，并以得到的和来取代原来内存的记忆值。当按MR按键的时候，内存里面记忆的值被调出，就是最后的结果。如果要清空内存，按MC按键，这个时候右边的M标志就消失了
一、数学考察的范围
1.Arithmetic算术部分包括整数的性质和种类，比如整除性、因子分解、质数、余数、奇数偶数；算术运算、指数、根；估算、百分比、比、比率、绝对值、数轴、小数表达、数列。
2.Algebra代数包括指数运算；因式分解、简化代数式；函数、等式、不等式；解一次方程和二次方程、解不等式；解联立方程、方程组；用方程解决文字题；解析几何、函数图像、函数图像解方程和不等式、截距、斜率。
3.Geometry几何包括平行、垂直、圆、三角形、等腰三角形、等边三角形、306090三角形、四边形、其他多边形、全等和相似图形、三维图形、面积、周长、体积、毕达哥拉斯定理、角度计算。不考察证明的能力。
4.Data analysis包括描述统计学比如平均数、中位数、众数、极差、均方差、四分位差、四分位、百分位；分析图和表，包括折线图、柱状图、饼图、箱型图、散点图、频数分布；概率初步、合成事件、独立事件、随机变量、概率分布、正态分布；计数方法、排列、组合、维恩图。不考推论统计。
二、数学考察的题型
四种题型：
1.数值比较quantitative comparison questions
2.单选题 multiple-choice questions----select one answer choice
3.多选题 multiple-choice questions----select one or more answer choices
4.数值输入题 numeric entry questions
三、答题的注意事项
1.become familiar with the answer choices.
2.avoid unnecessary computations.
3.remember that geometric figures are not necessarily drawn to scale.
4.plug in numbers
5.simplify the comparison
6.use the fact that the answer is there.
7.examine the answer choices
8.for questions that require approximations, scan the answer choices to see how close an approximation is needed.
9.note whether you are asked to indicate a specific number of answer choice or all choices that apply.
10.in some questions that involve conditions that limit the possible values of numerical answer choices, it may be efficient to determine the least and/or the greatest possible value.
11.avoid lengthy calculations by recognizing and continuing numerical patterns.
12.make sure you answer the question that is asked.
13.if you are asked to round your answer, make sure you round to the required degree of accuracy.
14.examine your answer to see if it is reasonable with respect to the information given.
15.填空题几个注意：1要先点选输入框 2删除要用backspace 3负号就用那个连词符号 4如果要改成正的，再次输入连词符号就变成正数了 5计算器上的transfer display可以直接把计算器里得出的结果转到输入框里面 6 2.5和2.50是一样的 7 除非要求四舍五入，否则不要输入近似值 8如果是分数，一般分子和分母是两个独立的框 9分数不必须约分
16.scan the data presentation briefly to see what it is about, but do not spend time studying all of the information in detail
17.bar graphs and circle graphs, as well as other graphical displays of data, are drawn to scale, so you can read or estimate data visually from such graphs.
18.the questions are to be answered only on the basis of the data presented, everyday facts , and your knowledge of mathematics.
19.MR表示 memory recall, M+ 表示memory sum, MC 表示 memory clear.
20.当第一次按M＋，屏幕上显示的数字被纪录在计算器的内存里面，屏幕右边出现M字母，表示内存记忆被使用。以后每一次按M＋按键，都会把当前的屏幕上显示的数字加到内存的数字上，并以得到的和来取代原来内存的记忆值。当按MR按键的时候，内存里面记忆的值被调出，就是最后的结果。如果要清空内存，按MC按键，这个时候右边的M标志就消失了
