新加坡政府中小学常用数学词汇.doc

报考新加坡政府中小学常用数学词汇Add/ subtract/multip le/ divide加/减廉傑product积（结果）number/number line数做轴real number实数imaginary numberpositive正数（不包括0的正数）integer整数（包括负数）non-integer非整数whole number整数（包括0的整数，不包括负数）natural number/positive integer自然数（正整数）odd number/even number/prime number奇数/（禺数/素数rational number/irrational number有理数/无理数perfect square/perfect cube完全平方数院全J方数fraction/decimal分数/小数simplify化简decimal place小数点位苴standard form（数字）标准型round off四舍五入estimate估计directed numbers带符号的数significant figure有效数字sign符号value值digit数字calculate计算profit and loss（利息）计算获益颅失percentage profit/loss• •获益備失的百分比7-'人丄Cprofit and loss percentage profit/loss cost price discount simple interestcompound interest principalratio approximately direct proportion/inverse proportion scalespeed 或 velocity/average speed distanceshaded/unshaded percentage halfwayexpress/expr cssionlowest term/simplest form evaluate/find the valuehence/so that/wecan conclude that..・ solutionanswersquaresquare root/cuberoot fector/common factor largest fector/highest common factor (HCF)least common multiple (LCM) figure/picture geometrically（利息）计算获益備失获益備失的百分比成本价格折扣（简单）利息复合利息（利息间题）本金比率近似正相关喷相关（地图）的比例规模，比例尺速度/平均速度距离阴彫部分归E阴彫部分百分比一半（用于求平均值）表达，表达式最简式求值因此（给出最后的结论或者中间结论）解题方法（在每个题的开头）回答，答案平方平方根/立方根因子/公因子最大公因子最小公倍数 几何的句型Correct to one significant figure精确到1位有效数字可以简写为1 sf或1 sig. fig.Correct 0.234 to 2 decimal placesCorrect to nearest teri/hundred/thousandIn order of 20 as a percentage of 50Express the percentage as fraction/decimal精确到小数点后2位小数 精确到十位/百位/千位…… 援照什么顺序20/50x100%把…表示成分数/小数SimplifyExpand simplest formFactorise completely/fullyGiven thatGiven also that reduce (to) equality/inequality化简（表达式）展开最简式完伞因式分解 假设再假设（再给出条件） 推导出等式/不等式remove the bracketsSolve the equationSolve the simultaneous equationsA solution of the equation rootPythagoras Theorem去括号解方程解联立方程组方程的解（方程）的根（直角三角形）勾股定理angle triangle/ triangular right angle lengthwidth（几何中的）角 三角形/三角形的 直角 长度 宽度right angle直角length长度width宽度heigth咼度radius(radii)半径（复数）diametre直径circle鬲centre圆心rectangle/rectangular矩形（长方形）/矩形的square正方形side辺metre/ c entimeter/millimeter米/厘米厘米diagram图formula公式region区域reciprocal倒数perfect square完全平方数The circle touch the side (line) SR at point P圆与辺（直线）SR相切于点Pin terms ofx根据刃基于Xline straight line parallel triangle right triangle isosceles triangle equilateral triangle similar to congruent to base (side) largest side supplement angle线直线平行三角形直角三角形等腰三角形正三角形相似全等底辺最大（尺寸）的辺补角obtuse angle/ reflex angle acutebase angle opposite side quadrilateral diagonal Rectangle Rhombus parallelogram square trapezium polygon regular polygon pentagon hexagon heptagon octagon nonagon decagon n-sided polygon regular N-sided polygon vertices convex polygon inscribed bisect arc chord segment circle/senii-circle circumference tangent mid-point perpendicular to intersect钝角/ （大于ISO度）的钝角 锐角对边四辺形 对角线 矩形 菱形 平行四辺形 正方形 梯形 多辺形 正多辺形 五辺形 六辺形 七辺形 八边形 九辺形 十辺形 N辺形 正N辺形（多辺形）的顶点 凸多辺形 內接的 平分 弧 弦 弓形 圆/半圆 圆周 切线 中占1 丿垂直（直线）相交As Bs C and D lie on a circle/ on a straight line点A、B、C在一个圆上/一条直线上。