gre数学考试在新gre考试当中增加了一些难度,但是gre考生也不要太紧张,只要把一些gre数学基本概念掌握好,解题时就一定能轻松应对。
! [3 b7 _6 Y: `$ D2 W8 N8 O. Y, b) p 数学各个数位的表达( X4 k' j. V9 O2 e5 k, w
个位:units,ones6 t- ^+ c/ ^9 w. m- Q
个位以上的其他整数数位:基数词+S
8 P" T# Z8 x7 J6 V, r O% @: I9 ^ 例如:十位 tens
9 _- X3 y: n+ J e' @ 小数位:序数词+S
5 w& n% K: U: l2 d% Q! \# j 例如:十分位 tenths
; n0 M3 g, N! V& |& Z7 k* _ 例题:A worker numbered the pages of a book, with 1 on the first page. In numbering the page, he printed a total of 63 digits.
0 w: B, e( s0 A+ o A. the number of pages in the book* V0 [" z) k0 J. N
B. 37
/ ^2 P8 Z# W/ _9 ?4 ^# v0 ] 小数decimals
% j+ o$ B1 Q `1 S: H+ ^/ v repeating decimals 循环小数
0 s" }+ d; P* `9 g terminating decimals 有限小数7 L$ i, @; z4 Y( P- r( ]
round to the nearest(tenths)
, A8 _& K6 V* H* B 四舍五入(至十分位)
0 Q6 A1 d# Q; x! B4 f 分数 fractions
7 M% W( ^+ e8 D fractions=numerator(分子)/denominator(分母)3 H. N- ?. N% r/ L2 C* U& |6 P
The least common denominator 最小公分母
; R5 Z. i) ^# X8 E 集合 set! w6 A% J0 R2 ]7 \) Y* L! [
例题.If 75 percent of a class are members of club A, 55 percent are members of club B, and 20 percent are not members of either club A or B, what percent are members of both A and B?5 J* {7 Z7 C" v) u' k: d/ `
A.10%- g3 `$ q2 m4 i# Q2 D$ [7 d- r
B.20%
5 F0 o1 {) V, c6 \7 }) \# M C.30%( j S" ^ k: ~" Q5 |! r+ c. V, @
D.50%
9 V* T6 j) j6 T9 u$ p9 k E.60%
) _3 C% u; r' S4 z# i 数列sequence/progression6 z# [; j6 P q6 q
等差数列:arithmetic sequence* t: H2 N N; j
等比数列:geometric sequence* B+ A3 V& _% K2 r/ }7 H) w+ A
等差数列前N项求和:! i& E0 `) ~, E$ Z- m
(首项+末项)x项数/2
2 g+ q" E" j% z' U 有穷数列:finite sequence' |. c$ u: Q* q) d6 [
无穷数列:infinite sequence
. o. I5 T: |' L5 v0 z( W( K4 U: P0 | 平时,gre考生一定要注意gre数学基本概念的加强理解,因为无论gre数学考试怎样的题目都是从最基本的概念中演变而来的。 |