1、.數學核心詞匯一：常見符號plus ;positiveminus ;negativemultiplied by ;timesdivided byequalsapproximately equalsnot equal toless thangreater thanequal to or less than equal to or greater than o( )round brackets ;parentheses square brackets bracesis a member of the setis a subset ofsimilar tocongruent to*denotes a

2、n operationthereforebecauseratio sign, divided by, is toequals, as(proportion)square root ofcube root ofparallel toperpendicular to, at right angles withangleright angledegreeminutesecondcircleabarc abethe base of natural logarithms,approx.2.71828x!factorial x, x(x-1)(x-2)-1lognxlog x to the base np

3、ilnxlog x to the base e(natural logarithm)lgxlog x to the base 10(common logarithm)|x|the absolute value of x二： 常見幾何計算公式平面圖形的周長和面積：perimeterareatriangle三邊之和(底高)/2square邊長4邊長的平方rectangle(長+寬)2長寬parallelogram(長+寬)2底高trapezoid四邊之和(上底+下底)高/2rhombus邊長4兩條對角線之積的1/2circle2r=dr2立體圖形的表面積和體積volumesurface arear

4、ectangular prism長寬高2(長寬+長高+寬高)cube棱長的立方6棱長棱長right circular cylinderr2h2r h(側)+ 2r2(底)*sphere4r3/34r2right circular coner2h/3lr/2 (l為母線)附錄：sat數學考試速查詞匯aabscissa橫坐標absolute value絕對值account for（數量）占acute angle銳角acute triangle銳角三角形add加add toaddition加，加法adjacent相鄰adjacent angles鄰角algebra代數學algebraic expre

5、ssion代數式algebraic fraction分式algebraic term代數項aliquot除得盡數aliquant除不盡數alternate angles內錯角altitude高度amount合計angle角angle bisector角平分線apex頂，頂點apiece每人，每個approximately近似的，大約的approximation近似，近似值arc弧，圓周的任意一段area面積arithmetic算術arithmetic(al) average算術平均數arithmetic(al) mean算術平均數或等差中項arithmetic(al) progression或

6、series算術級數，等差級數assume that假定義at random隨機地at right angles with與成直角at this rate以這樣的比率，價格或速度average平均，平均數平均的axis軸bbalance余額bar graph(chart)條帶圖base堤邊，底面，冪或乘方的底數base area底面積be across from在對面be closet to最接近be composed of由構成be equal to與相等be equivalent to anther equation與另一方程痛解be fewer than小于be greater than

7、大于be greater than or equal to不小于be inscribed in內接于be less than小于be less than or equal to不大于be parallel to平行于be perpendicular to垂直于be substituted for代替billion109binomial二項式bisect把二等分block立體blot out涂掉，刪掉bound辯解，范圍；鄰接bulk大量ccalculate to three decimal places計算結果保留三位小數cancellation約掉，消掉center圓心central ang

8、le圓心角chart圖表chord弦circle圓circle graph(chart)圓形圖circular圓形的，環形的circular cylinder圓柱circumference圓的周長clear an equation of fractions分式方程整式化clockwise順時針coefficient系數column列，圓柱common denominator公分母common difference等差數列的公差common divisor(factor)共因子；公約數common ratio等比數列的公比common multiple公倍數complement余角complem

9、entary angle余角complete circle全圓complete quadratic (equation)全二次方程complex fraction繁分數composite number和數，指大于一而不是質數的整數compound混合物；復利compound interest復利compound annual interest年復利concentration濃度concentric circle同心圓congruent（多邊形）全等的consecutive連續的consecutive integer連續整數consecutive even(odd) integer連續偶（奇）數

10、consist of由構成constant不變的，永恒的；常數constitute構成，組成coordinate坐標coordinate axis system坐標系coordinate geometry解析幾何coordinate plane坐標平面corresponding angles同位角，對應角corresponding side對應邊counterclockwise逆時針cross multiplication交叉相乘cube立方體，立方；三次冪cubic立方體的，立方的cubic block立方體cubic denominations立方單位cubic solid立方體cubic

11、 units立方單位cumulative graph(chart)累積圖curve曲線curved line曲線cylinder圓柱體ddecagon十角形，十邊形decimal小數；小數的decimal fraction純小數decimal place小數位decimal point小數點decrease減少，減少量deduct扣除，減去degree度；度數（溫度和角度）denominator分母denote表示，意味著depth深度diagonal對角線；對角線的diameter直徑differ不同，相異difference差，差額digit數字，位（數）dimension尺寸，尺度；維（

12、數），度(數)，元(be) direct(inverse) proportional to成正（反）比discount rate折扣率distance距離distinct與其它不同的，獨特的divide除dividend被除數divisor除數，約數divisible可整除的division除法done(drawn) to scale按比例繪制eeccentric偏心圓，；不同圓心的edge立體的變或棱endpoint端點equality相等，等式equation等式，方程equiangular等角的equidistance等距離的equilateral等邊形；等邊的equivalent等面積

13、的，等體積的；等價的，相等的，等量的equivalent fraction等值分數，如1/2和2/4even integer偶數evenly even integer能再平分的偶數（能背4整除）evenly spaced等間隔的exponent指數expression表達式exterior angle外角fface立體的面factor因子；將分解因子factorable可進行因式分解的factorial階乘；因子的，階乘的figure圖形fold對折formula公式，配方fraction分數from subtract從減去ggaingeometric mean幾何平均數geometric p

14、rogression幾何級數，等比級數geometry幾何學graph圖表；用圖表來表示greatest common divisor最大公約數grid格柵gross總的，毛的hhalfway半途的halve把平分為二；將減半height高heptagon七邊形hexagon六邊形horizontally水平地hundreds百位hundredth第一百個；百分之一hypotenuse（直角三角形）斜邊iidentical相等的；恒等的improper fraction假分數included angle(side)夾角（邊）indefinitely無限定地independent無關地，獨立地i

15、ndependent variables 自變量inequality不等式；不相等in excess of超過infinite decimal無窮小數，同non-terminating decimalinfinite sequence無窮數列inscribed angle圓周角，同弧所對圓心角central angle的尺寸是圓周角的二倍inside dimension內部尺寸installment分期付款中每一期所付的款項integer整數integer part代分數的整數部分，代分數的分數部分是fractional partintercept截距；截取eg intercepted arc

16、 截弧interest利息interior angle內角in terms of用來表示intersect直線相交，point of inetrsection交點interval間隔，區間in turn依次，輪流invert a fraction求一個分數的倒數irrational number無理數jjoint接合，接合處lleast(lowest) common multiple最小公倍數leg梯形的兩條不平性的邊；直角三角形的直角邊length長度lengthwise(lengthways)縱長的like(similar) terms同類項line直線，線段line segment/ha

17、lf line半直線，射線line graph線型圖literal coefficient字母系數mmathematical operation數學運算mean平均數mean proportional比例中項median中數；中線midpoint中點midway中途million106minor arc ab劣弧abminuend被減數minus減mixed decimal混合小數，如3.14mode眾數monomial單項式multiple多倍的，多重的；倍數a multiple ofmultiplicand被乘數multiplication乘法multiplier乘數multiply乘nn

18、atural number自然數negative number負數negligible可忽略不計的n-gonn-邊形nickel五分nonadjacent不相鄰的nonagon九邊形nonzero非零；非零的not necessarily distinct不必然不同的number數，數字number line數軸，規定了原點，正方向和單位長度的直線，數軸上的點和實數一一對應numerator分數的分子numerical coefficient數字系數oobtuse angle鈍角，大于90度而小于180度的角obtuse triangle鈍角三角形octagon八邊形odd integer奇數

19、odds事物發生的可能性，機會of one dimension線性的on the average平均operation運算order順序，訂單ordinate縱坐標origin原點,origin of coordinates 坐標原點original equation原方程overlap部分重疊，部分搭交pparallel lines平行線parallelogram平行四邊形pentagon五邊形percent百分號percent of interest利率，同rate of interestpercent increase增加的百分率percent decrease減少的百分率perfect

20、 square(cube)完全平方（立方），e.g.25是5的完全平方perimeter周長perpendicular lines垂直線pictograph統計圖表pie gragh(chart)圓形圖，餅型圖palce（位）數plane平面plus加point小數點pointer指針point of tangency切點polynomial多項式pool聯營potion一部分positive正的power冪，乘方preceding在前的，先前的prime number質數，素數probability概率product（乘）積progression(series)級數，同seriesproje

21、cted被預測，被估計proportion比，比率；比例e.g. in proportion to與成比例;qquadrant象限quadratic equation二次方程quadrilateral四邊形quantity數，數量quotient商rradical根號，根式；radius半徑randomly隨機地rate率，比率；速度，速率ratio比，比率ray射線real number實數reciprocal倒數rectangle矩形rectangular矩形的；成直角的remainder余數remote interior angles三角形一個外角對應的兩個內錯角repeating decimal無限循環小數revolution旋轉e.g. revolutions per min每分鐘轉速rhombus菱形right直的root方根；方程的根round四舍五入ssatisfy使成立scale drawing按比例繪制（的圖）scalene不等邊三角形，不等邊的secant割線section斷面，一部分cross section橫截面sector扇形segment弓形；部分sequence數列set集合shaded reg