一.数学中常用符号
+: plus X: multiply
-: subtract ÷: divide
V~: square root |...|: absolute value
=: is equal to =/=: is not equal to
>: is greater than <: is less than
//: is parallel to _|_: is perpendicular to
>=: is greater than or equal to (或 no less than)
<=: is less than or equal to (或no more than)
二.表达相应数目的前缀
1:uni-,mono- 2:bi-,du-,di- 3:tri-,ter-, 4:tetra-,quad-, 5:penta-,quint,
6:hex-,sex-, 7:sept-,hapta-, 8:oct, 9:enn-, 10:dec-,deka-,
三.数学中常用单词术语
注： 1. a only if b 表示a==>b
2. a if only b 表示b==>a
3. 2/3 as many A as B 是: A为B的2/3
4. twice as many A as B 是: A为B的2倍
+: plus X: multiply
-: subtract ÷: divide
V~: square root |...|: absolute value
=: is equal to =/=: is not equal to
>: is greater than <: is less than
//: is parallel to _|_: is perpendicular to
>=: is greater than or equal to (或 no less than)
<=: is less than or equal to (或no more than)
二.表达相应数目的前缀
1:uni-,mono- 2:bi-,du-,di- 3:tri-,ter-, 4:tetra-,quad-, 5:penta-,quint,
6:hex-,sex-, 7:sept-,hapta-, 8:oct, 9:enn-, 10:dec-,deka-,
三.数学中常用单词术语
| abscissa | 横坐标 | |
| absolute value | 绝对值 | |
| acute angle | 锐角 | |
| adjacent angle | 邻角 | |
| addition | 加 | |
| algebra | 代数 | |
| altitude | 高 | |
| angle bisector | 角平分线 | |
| arc | 弧 | |
| area | 面积 | |
| arithmetic mean | 算术平均值（总和除以总数） | |
| arithmetic progression | 等差数列（等差级数） | |
| arm | 直角三角形的股 | |
| at | 总计（乘法） | |
| average | 平均值 | |
| base | 底 | |
| be contained in | 位于...上 | |
| bisect | 平分 | |
| center | 圆心 | |
| chord | 弦 | |
| circle | 圆形 | |
| circumference | 圆周长 | |
| circumscribe | 外切，外接 | |
| clockwise | 顺时针方向 | |
| closest approximation | 最相近似的 | |
| combination | 组合 | |
| common divisor | 公约数，公因子 | |
| common factor | 公因子 | |
| complementary angles | 余角（二角和为90度） | |
| Composite number | 合数（可被除1及本身以外其它的数整除） | |
| concentric circle | 同心圆 | |
| cone | 圆锥（体积＝1/3*∏*r*r*h） | |
| congruent | 全等的 | |
| consecutive integer | 连续的整数 | |
| coordinate | 坐标的 | |
| cost | 成本 | |
| counterclockwise | 逆时针方向 | |
| cube | 1.立方数 | |
| 2.立方体（体积＝a*a*a 表面积＝6*a*a） | ||
| cylinder | 圆柱体 | |
| decagon | 十边形 | |
| decimal | 小数 | |
| decimal point | 小数点 | |
| decreased | 减少 | |
| decrease to | 减少到 | |
| decrease by | 减少了 | |
| degree | 角度 | |
| define | 1.定义 2.化简 | |
| denominator | 分母 | |
| denote | 代表，表示 | |
| depreciation | 折旧 | |
| distance | 距离 | |
| distinct | 不同的 | |
| dividend | 1.被除数 2.红利 | |
| divided evenly | 被除数 | |
| divisible | 可整除的 | |
| division | 1.除 2.部分 | |
| divisor | 除数 | |
| down payment | 预付款，定金 | |
| equation | 方程 | |
| equilateral triangle | 等边三角形 | |
| even number | 偶数 | |
| expression | 表达 | |
| exterior angle | 外角 | |
| face | (立体图形的）某一面 | |
| factor | 因子 | |
| fraction | 1.分数 2.比例 | |
| geometric mean | 几何平均值（N个数的乘积再开N次方） | |
| geometric progression | 等比数列（等比级数） | |
| have left | 剩余 | |
| height | 高 | |
| hexagon | 六边形 | |
| hypotenuse | 斜边 | |
| improper fraction | 假分数 | |
| increase | 增加 | |
| increase by | 增加了 | |
| increase to | 增加到 | |
| inscribe | 内切，内接 | |
| intercept | 截距 | |
| integer | 整数 | |
| interest rate | 利率 | |
| in terms of... | 用...表达 | |
| interior angle | 内角 | |
| intersect | 相交 | |
| irrational | 无理数 | |
| isosceles triangle | 等腰三角形 | |
| least common multiple | 最小公倍数 | |
| least possible value | 最小可能的值 | |
| leg | 直角三角形的股 | |
| length | 长 | |
| list price | 标价 | |
| margin | 利润 | |
| mark up | 涨价 | |
| mark down | 降价 | |
| maximum | 最大值 | |
| median, medium | 中数（把数字按大小排列，若为奇数项,则中间那项就为中数，若为偶数项，则中间两项的算术平均值为中数。例：(1，3，8)其中数为3；(1,3,8,9)其中数为(3+8)/2=5） | |
| median of a triangle | 三角形的中线 | |
| mid point | 中点 | |
| minimum | 最小值 | |
| minus | 减 | |
| multiplication | 乘法 | |
| multiple | 倍数 | |
| multiply | 乘 | |
| natural number | 自然数 | |
| negative number | 负数 | |
| nonzero | 非零 | |
| number lines | 数线 | |
| numerator | 分子 | |
| obtuse angle | 钝角 | |
| octagon | 八边形 | |
| odd number | 奇数 | |
| ordinate | 纵坐标 | |
| overlap | 重叠 | |
| parallel lines | 平行线 | |
| parallelogram | 平行四边形 | |
| pentagon | 五边形 | |
| per capita | 每人 | |
| perimeter | 周长 | |
| permutation | 排列 | |
| perpendicular lines | 垂直线 | |
| pyramid | 三角锥 | |
| plane | 平面 | |
| plus | 加 | |
| polygon | 多边形 | |
| positive number | 正数 | |
| power | 次方（2的5次方＝the fifth power of 2） | |
| prime factor | 质因子 | |
| prime number | 质数 | |
| product | 乘积 | |
| profit | 利润 | |
| proper fraction | 真分数 | |
| proportion | 比例 | |
| purchasing price | 买价 | |
| quadrant | 象限 | |
| quadrihedrogon | 四角锥 | |
| quadrilateral | 四边形 | |
| quotient | 商 | |
| ratio | 比例 | |
| rational | 有理数 | |
| radius | 半径（复数为radii） | |
| radian | 弧度 | |
| real number | 实数 | |
| reciprocal | 倒数 | |
| rectangle | 长方形 | |
| rectangular prism | 长方体 | |
| reduced | 减少 | |
| regular polygon | 正多边形 | |
| remainder | 余数 | |
| retail value | 零售价 | |
| rhombus | 菱形 | |
| right angle | 直角 | |
| right triangle | 直角三角形 | |
| round | 四舍五入 | |
| sale price | 卖价 | |
| segment | 线段 | |
| set | 集合 | |
| sequence | 数列 | |
| scalene triangle | 不等边三角形 | |
| side | 边长 | |
| simple interest | 单利 | |
| slope | 斜率 | |
| solution | (方程的）解 | |
| speed | 过度 | |
| sphere | 球体（表面积＝4*∏*r*r,体积＝4/3*∏*r*r*r） | |
| square |
1.平方数，平方 2.正方形 |
|
| square root | 平方根 | |
| straight angle | 平角 | |
| subtract | 减 | |
| subtraction | 减法 | |
| sum | 和 | |
| surface area | 表面积 | |
| supplementary angles | 补角 | |
| tangent | 相切 | |
| tenths' digit | 十分位 | |
| tenth | 十分位 | |
| tie | 并列，打平 | |
| times | 倍 | |
| total | 1.总数（用于加法中，相当于＋） | |
| 2.总计（用于减法中，相当于－） | ||
| to the nearest | 最接近的 | |
| trapezoid | 梯形 | |
| triangle | 三角形 | |
| two digits | 2位 | |
| units' digit | 个位 | |
| veiocity | 速度 | |
| vertex angle | 顶角 | |
| vertical angle | 对顶角 | |
| volume | 体积 | |
| whole number | 整数 | |
| width | 宽 | |
| 3-digit number | 三位数 |
2. a if only b 表示b==>a
3. 2/3 as many A as B 是: A为B的2/3
4. twice as many A as B 是: A为B的2倍