2012-9-25星期2zqx-2南外小升初入学考试数学词汇表数学术语的英文对照加plus(prep.),add(v.),addition(n.)和sum减minus(prep.),subtract(v.),subtraction(n.)被减数minuend减数subtrahend差difference乘times(prep.),multiply(v.),multiplication(n.)被乘数multiplicand,乘数multiplication积product除dividedby(prep.),divide(v.),division(n.)加法addition减法subtraction乘法multiplication除法division可被整除的数divisible被整除dividedevenly被除数dividend除数divisor余数remainder商quotient二加一等于三2plus1equals3四减二等于二4minus2equals2四乘以五4multipliedby5,4times5二十除以五等于20dividedby5,等于equals,isequalto,isequivalentto大于isgreaterthan小于islesserthan大于等于isequalorgreaterthan小于等于isequalorlesserthan数字digit数number自然数naturalnumber整数wholenumber正整数positivewholenumber连续整数consecutivenumber奇数oddnumber偶数evennumber合数compositenumbere.g.4,6,8,9,10,12,14,15…质数primenumbere.g.2,3,5,7,11,13,15…倒数inversereciprocal小数decimal小数点decimalpoint纯小数decimalfraction无穷小数Infinitedecimal循环小数recurringdecimal分数fraction真分数properfraction假分数improperfraction带分数mixedfraction普通分数commonfraction简分数simplefraction繁分数complexfraction四分之一quarter四分之三three-quarter三分之一third二分之一half分子numerator分母denominator公约数commondivisor倍数multiple(质)因子(prime)factor公因子commonfactor比ratio正positive正数positivenumber负negative零null,zero,零点四zeropointfour十进制decimalsystem十位tens个位units二进制binarysystem进位carry四舍五入round下舍入rounddown上舍入roundup有效数字significantdigit无效数字insignificantdigit最小公倍数theLowestCommon最大公约数theHighestCommon平均数average近似值approximation估算estimation混合运算MixedOperation等式equation百分比percentage比ratio比例proportion分子numerator公分母commondenominator使乘五次方toraisetothepoweroffive某数的平方xsquared平方根squareroot立方根cuberoot比例法ruleofthree等式,方程式equation未知数unknown数学符号英文对照＋plus加号；正号－minus减号；负号±plusorminus正负号×ismultipliedby乘号÷isdividedby除号＝isequalto等于号≠isnotequalto不等于号≈isapproximatelyequalto约等于号＜islessthan小于号＞ismorethan大于≤islessthanorequalto小于或等于号≥ismorethanorequalto大于或等于号％percent百分之…‰permill千分之…∝variesas与…成比例∷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°degree度′minut