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Page|1SAT数学词汇A．算术1.整数integer整数even偶数odd奇数divisor除数realnumber实数positivewholenumber正整数negativewholenumber负整数consecutiveinteger连续的整数quotient商multiple倍数remainder余数primenumber质数，素数primefactor质因子，质因数compositenumber合数2.分数commonfactor公因子reciprocal/inverse倒数mixednumber带分数improperfraction假分数properfraction真分数vulgarfraction/commonfraction普通分数simplefraction简分数complexfraction繁分数3.小数decimalsystem十进制digit位unitsdigit个位数tensdigit十位数tenthsunit十分位3-digitnumber三位数decimalpoint小数点decimalfraction纯小数infinitedecimal无穷小数recurringdecimal循环小数4.实数absolutevalue绝对值nonzeronumber非零数Page|2naturalnumber自然数positivenumber正数negativenumber负数nonnegative非负的rational有理数irrational(number)无理数5.比例commonratio公比directproportion正比percentage百分比6.幂和根product乘积base/power底数/指数squareroot平方根cuberoot立方根commonlogarithm常用对数radicalsign/rootsign根号cardinal基数ordinal序数tothepowerof几次幂7.集合subset子集union合集，并集intersection交集propersubset真子集solutionset解集8.描述统计学average平均数median中数mode众数（在一系列数中出现最多的数）arithmeticmean算术平均数weightedaverage加权平均数geometricmean几何平均数maximum最大值minimum最小值range值域（一系列数中最大值减最小值）dispersion差量，离差standarddeviation标准方差distribution（频数或频率）分布frequencydistribution频数分布normaldistribution正态分布Page|39.计算方法factorialnotation阶乘permutations排列combination组合10.数学运算add/plus加subtract/minus减multiply/times乘divide除total○1总数（用在加法中，相当于+）；○2总计（用于减法中，相当于-）division○1除；○2部分divisible可被整除的dividedevenly被整除dividend被除数divisor除数B．代数式、方程及不等式coefficient系数numericalcoefficient数字系数literalcoefficient字母系数term项constantterm常数项quadratic二次方程equivalentequation同解方程，等价方程linearequation线性方程solution（方程的）解inequality不等式expression表达式linear一次的，线性的factorization因数分解function函数trigonometricfunction三角函数inversefunction反函数complementaryfunction余函数variable变量domain域sequence数列arithmeticprogression等差数列geometricprogression等比数列C．几何1.直线和垂线alinesegment线段Page|4endpoint端点midpoint中点arightangle直角perpendicular垂线perpendicularlines垂直线perpendicularbisector垂直平分线parallellines平行线bisect平分2.相交线和角verticalangle对顶角astraightline直线acuteangle锐角obtuseangle钝角vertexangle顶角roundangle周角straightangle平角includedangle夹角alternateangle内错角interiorangle内角centralangle圆心角exteriorangle外角supplementaryangle补角complementaryangle余角adjacentangle邻角anglebisector角平分线diagonal对角线intersect相交3.四边形和多边形quadrilateral四边形pentagon五边形hexagon六边形heptagon七边形octagon八边形nonagon九边形decagon十边形polygon多边形multilateral多边的parallelogram平行四边形equilateral等边形square正方形rectangle长方形regularpolygon正多边形rhombus菱形trapezoid梯形Page|5congruent全等的4.三角形isoscelestriangle等腰三角形equilateraltriangle等边三角形scalenetriangle不等边三角形righttriangle直角三角形oblique斜三角形inscribedtriangle内接三角形hypotenuse斜边leg直角边includedside夹边arm直角三角形的股medianofatriangle三角形的中线opposite直角三角形中的对边altitude（三角形的）高vertex顶点base底5.圆circle圆形semicircle半圆concentriccircles同心圆crosssection横截面centerofacircle圆心chord弦diameter直径radius半径circumference圆周长arc弧surfacearea表面积radian弧度（弧长/半径）segmentofacircle弧形pointoftangency切点tangent正切inscribe内切，内接circumscribe外切，外接6.长方体和圆柱体edge边vertex顶点cube立方体rectangularsolid长方体length长width宽Page|6altitude高depth深度regularsolid/regularpolyhedron正多面体cylinder圆柱体cone圆锥sphere球体pyramid角锥volume体积dimension维数7.坐标几何coordinateplane坐标平面abscissa横坐标ordinate纵坐标numberline数轴coordinatesystem坐标系rectangularcoordinate直角坐标系x-axisX轴origin原点quadrant象限slope斜率intercept截距auniquesolution惟一解nosolution无解parabola抛物线D．公式（formulae）0！=1！=10的阶乘为1多边形内角和=(n-2)×180°圆周长=2πr（r=radius半径）弧长=（X°/360°）×圆周长等差数列（d为常数）等差求和等比数列Page|7等比求和(q≠1)(q=1)利息=principle(本金)×interestrate(利率)×timeSum(和)，difference（差），product（积、商），area（面积），volume(体积)E.句型TheratioofAtoBis…A比B(A/B)AisadivisorofBA是B的除数（约数）(B/A)AdividedbyBA/BAdividedintoBB/ATwiceasmanyAasBA是B的两倍Ais20%morethanB(A-B)/B=20%Ais20%lessthanB(B-A)/B=20%nolessthan大于等于nomorethan小于等于isequalto等于roundto四舍五入tothenearest四舍五入isparallelto平行isperpendicularto垂直closestapproximation最相近似的F．单位cent美分penny一美分硬币nickel5美分硬币dime一角硬币quarter25美分dollar美元dozen打(12个)score廿(20个)Centigrade摄氏Fahrenheit华氏pint品脱(干量或液量的单位)quart夸脱(2pints)gallon加仑(1gallon=4quart)yard码(3feet)meter米micron微米inch英寸foot英尺(12inches)minute分(角度单位)degree(60minutes)squaremeasure平方单位制cubicmeter立方米G.应用intercalaryyear(leapyear)闰年(366天)commonyear平年(365天)depreciation折旧downpayment直接付款，预付款margin利润profit利润dividend红利interest利息simpleinterest单利compoundedinterest复利decreaseto减少到decreaseby减少了increaseto增加到increaseby增加了listprice标价marketprice市价wholesaleprice批发价retailprice零售价markup涨价(on)sale大减价discount打折percapita每人ratio比率tie打平H.符号+plus加号；正号-minus减号；负号±plusorminus正负号×ismultipliedby乘号÷isdividedby除号＝isequalto等于号Page|8≠isnotequalto不等于号≡isequivalentto全等于号≌isequaltoorapproximatelyequalto等于或约等于号≈isapproximatelyequalto约等于号＜islessthan小于号＞isgreaterthan大于号≮isnotlessthan不小于号≯isnotmorethan不大于号≤islessthanorequalto小于或等于号≥ismorethanorequalto大于或等于号%percent百分之…‰permill千分之…∞infinity无限大号∝variesas与…成比例√(square)root平方根∵since;because因为∴hence所以∷equals,as(proportion)等于，成比例∠angle角⌒semicircle半圆⊙circle圆○circumference圆周πpi圆周率△triangle三角形⊥perpendicularto垂直于∪unionof并，合集∩intersectionof交，通集∫theintegral/differentialof…的积/微分∑(sigma)summationof总和°degree度′minute分″second秒℃Celsiussystem摄氏度{openbrace,opencurly左花括号}closebrace,closecurly右花括号(openparenthesis,openparen左圆括号)closeparenthes