一、Arithmetic
odd integer/number 奇数
even integer/number 偶数
consecutive even integers 连续偶数
consecutive odd integers 连续奇数
prime number 质数
composite number 合数
prime factorization质因数分解
greatest common divisor (gcd) 最大公约数
least common multiple (1cm) 最小公倍数
subtract from 从…减…
in equivalent to 与…相等
round to/off ,to the nearest 四舍五入
decimal point 小数点
infinite decimal 无穷小数
terminating decimal 有限小数
unitsdigit个位
tensdigit十位数
tenthsunit十分位
scientific notation 科学记数法
radical sign/root sign 根号
square root 平方根
cube root 立方根
the nth power of k k的n次方(k^n)
absolute value 绝对值
A multiplied by B A乘以B
A divided by B A/B
twice as many A as B A是B的两倍
the ratio of A to B is A比B
a diminished by B/A minus B /from A subtract B A减去B
arithmetic mean 算术平均数
weighted average/mean 加权平均数
geometric mean 几何平均数
standard deviation 标准差
is equal to 等于
the union of A and B A和B的并集(A∪B)
the intersection of A and B A和B的交集(A∩B)
mutually exclusive 互斥
Venn diagram 韦恩图
at random 随机
equally likely 等可能
independent events独立事件

二、Algebra
unknown quantity 未知数
algebraic expression 代数表达式
constant term 常数项
like terms, similar terms 同类项
second degree (or quadratic) polynomial 二次多项式
first degree (or linear) polynomial 一次多项式
quadratic equation 二次方程式
equivalent equation 等价方程
linear equation 线性方程
Quadratic formula 二次公式
solution set 解集
not equal to 不等于
greater than 大于
less than 小于
no less than 大于等于
no more than 小于等于
greater than or equal to 大于或等于
less than or equal to 小于或等于
sequences of numbers数列
arithmetic sequence 等差数列
geometric sequence 等比数列
be direct(inverse)proportion at/to 成正(反)比

三、Geometry
line segment 线段
perpendicular bisector垂直平分线
parallel lines平行线
number line数轴
vertical angles 对顶角
right angle 直角
regular polygon 正多边形
interior angle 内角
exterior angle 外角
length of sides 边长
isosceles triangle 等腰三角形
equilateral triangle 等边三角形
Pythagorean theorem 勾股定理
center of a circle 圆心
central angle 圆心角
inscribed angle 圆周角
point of tangency 切点
angle bisector 角平分线
cross section 横截面
concentric circles 同心圆
angle bisector 角平分线
regular solid/regular polyhedron正多面体
surface area 表面积
rectangular solid 表面积
rectangular coordinate 直角坐标系
y-intercept y轴截距
x-intercept x轴截距

四、Word Problems
leap year 闰年(366 天)
Down payment 预付定金，首付款
discount rate 折扣率
cost of production 产品成本
sales taxes 营业税，销售税
increase/decrease to 增加/减少到
increase/decrease by 增加/减少了
A is 20% less than B (B-A)/B=20%
A is 20% more than B (A-B)/B=20%
Simple interest 单利
Compounded interest 复利