常用数学术语的英语表达

1、常用加减乘除的英语表达:四加五等于九五与四的和是九五减二等于三五与二之差为三二乘三等于六二与三的积为六六除以二等于三常用数学术语的英语表达:1立方onecubic1平方米onesquaremetre几何geometry点point线line面plane直线astraight曲线curvedline近似值anapproximatevalue垂直线avertical水平线ahorizontalline三角形的底thebaseofatriangle三角形的两个腰thetwosidesofatriangle直角arigtangle锐角anacuteangle钝角anobtuseangle长方形arec

2、tangle止方形asquare多边形apolygon圆心thecentreofacircle圆的直径thediameterofacircle圆的半径theradiusofacircle半圆asemicircle弧anarc圆柱体acylinder球体aspheroidIfyouadd4to5,youget9.或：Ifyouadd4and5,youget9.4and5are/make9.或：Thesumof5and4is9.或：Fourplusfiveequalsnine.Ifyoutake2from5,youget3.或：5minus2equals3.Thedifferencebetween

3、5and2is3.2times3is/equals6.或：3multipliedby2equals6.Theproudctof2and3is6.Ifyoudivide6by2,theansweris3.或：Ifyoudivide2into6,theansweris3.或：6dividedby2equals3.比较两个数字大小的英语表达:6大于56小于76isgreaterthan5.或：6ismorethan5.6islessthan7.3的平方等于93的立方等于273的四次方等于81平方、立方及四次方的英语表达:Thesquareof3is9.Thecubeof3is27.Thefourth

4、powerof3is/equals81.平方根立方根的英语表达:9的平方根为327的立方根为3Thesquarerootof9is3.Thecuberootof27is3.正比反比的英语表达:A与B成正比A与B成反比AisindirectproportiontoB.AisininverseproportiontoB.两直线平行或垂直的英语表达:直线AB平行于直线CD直线AB垂直于直线CD代数部分1。有关数学运算add,plus力口difference差product积divisible可被整除的dividend被除数，红利quotient商factorial阶乘radicalsign,root

5、sign根号tothenearest四舍五入2。有关集合LineABisparalleltoLineCDLineABisperpendiculartoLineCDsubtract减multiply,times乘divide除dividedevenly被整除divisor因子，除数remainder余数power乘方roundto四舍五入union并集solutionset解集3。有关代数式、方程和不等式algebraicterm代数项numericalcoefficient数字系数inequality不等式range值域equivalentequation同解方程，等价方程4。有关分数和小数p

6、ropersubset真子集liketerms,similarterms同类项literalcoefficient字母系数triangleinequality三角不等式originalequation原方程linearequation线性方程(e.g.5x+6=22)properfraction真分数improperfraction假分数mixednumber带分数fraction简分数vulgarfraction,commonfraction普通分数simplecomplexfraction繁分数numerator分子(least)commondenominator(最小)公分母decima

7、lfraction纯小数recurringdecimal循环小数5。基本数学概念arithmeticmean算术平均值geometricmean几何平均数base乘哥的底数，底边squareroot平方根commonlogarithm常用对数constant常数inversefunction反函数linear一次的，线性的absolutevalue绝对值，6。有关数论naturalnumber自然数negativenumber负数eveninteger,evennumber偶数positivewholenumber正整数consecutivenumber连续整数irrational(numbe

8、r)无理数compositenumber合数denominator分母quarter四分之一infinitedecimal无穷小数tenthsunit十分位weightedaverage力口权平均值exponent指数，哥cube立方数，立方体cuberoot立方根digit数字variable变量complementaryfunction余函数factorization因式分解e.g.|-32|=32roundoff四舍五入positivenumber正数oddinteger,oddnumber奇数integer,wholenumber整数negativewholenumber负整数real

9、number,rationalnumber实数，有理inverse倒数e.g.4,6,8,9,10,12,14,15primenumber质数e.g.2,3,5,7,11,13,15注意：所有的质数（2除外）都是奇数，但奇数不一定是质数reciprocal倒数commondivisor公约数multiple倍数(least)commonmultiple(最小)公倍数(prime)factor(质)因子commonfactor公因子ordinaryscale,decimalscale十进制nonnegative非负的tens十位mode众数commonratio公比等差数列units个位medi

10、an中数7。数列arithmeticprogression(sequence)approximate近似cardinal基数directproportion正比estimation估计，近似proportion比例combination组合trigonometricfunction三角函数8。所有的角alternateangle内错角geometricprogression(sequence)等比数歹U(anti)clockwise(逆)顺时针方向ordinal序数distinct不同的parentheses括号permutation排歹Utable表格unit单位，位几何部分correspo

11、ndingangle同位角verticalangle对顶角interiorangle内角supplementaryangles补角adjacentangle邻角obtuseangle专屯角roundangle周角includedangle夹角9。所有的三角形equilateraltriangle等边三角形isoscelestriangle等腰三角形oblique斜三角形10。有关收敛的平面图形，除三角形外semicircle半圆quadrilateral四边形hexagon六边形octagon八边形decagon十边形parallelogram平行四边形plane平面rectangle长方形r

12、hombus菱形11。其它平面图形arc弧linesegment线段segmentofacircle弧形12 .有关立体图形cube立方体，立方数regularsolid/regularpolyhedron正多面体cone圆锥solid立体的13 .有关图形上的附属物altitude高side边长radian弧度volume体积crosssection横截面chord弦anglebisector角平分线diameter直径faceofasolid立体的面includedside夹边medianofatriangle三角形的中线opposite直角三角形中的对边endpoint端点central

13、angle圆心角exteriorangle外角complementaryangle余角acuteangle锐角rightangle直角straightangle平角scalenetriangle不等边三角形righttriangle直角三角形inscribedtriangle内接三角形concentriccircles同心圆pentagon五边形heptagon七边形nonagon九边形polygon多边形equilateral等边形square正方形，平方regularpolygon正多边形trapezoid梯形line,straightline直线parallellines平行线recta

14、ngularsolid长方体circularcylinder圆柱体sphere球体depth深度circumference,perimeter周长surfacearea表面积arm直角三角形的股centerofacircle圆心radius半径diagonal对角线edge棱hypotenuse斜边leg三角形的直角边base底边，底数（e.g.2的5次方，2就是底数）midpoint中点vertex（复数形式vertices）顶点tangent切线的intercept截品巨14 .有关坐标coordinatesystem坐标系点ordinate纵坐标quadrant象限complexplan

15、e复平面15 .其它planegeometry平面几何bisect平分inscribe内切perpendicular垂直等的其它transversal截线rectangularcoordinate直角坐标系origin原abscissa横坐标numberline数轴slope斜率trigonometry三角学circumscribe外切intersect相交pythagoreantheorem勾股定理congruent全multilateral多边的1 .单位类cent美分nickel5美分硬币dozen打（12个）Centigrade摄氏quart夸脱yard码micron微米foot英尺squaremeasure平方单位制pint品脱（干量或液量的单位）2 .有关文字叙述题，主要是有关商业intercalaryyear（leapyear）闰年（366天）depreciation折旧discount打折profit利润simpleinterest单禾1dividend红禾Upenny一美分硬币dime一角硬币score廿（20个）Fahrenheit华氏gallon力口仑（1gallon