# Mathematics & Measurement

**Type:** Topic
**Words:** 54

## About

Math, dimensions, units, statistics, and exact comparison.

## Words by Level

### A1
- math — The study of numbers, shapes, and quantities; mathematics.; frequency rank 3547

### A2
- weight — How heavy something or someone is.; frequency rank 1705
- unit — A fixed amount used as a standard for measuring something.; frequency rank 1724
- square — A flat shape with four equal sides and four right angles.; frequency rank 1913
- circle — A perfectly round shape, like a ring.; frequency rank 2581
- average — The result of adding several amounts and dividing by how many there are.; frequency rank 3242
- scale — The size or extent of something, especially when it is large.; frequency rank 3600
- inch — A unit of length equal to 2.54 cm, about the width of a thumb.; frequency rank 4516
- meter — A unit of length equal to 100 centimetres (US spelling of 'metre').; frequency rank 6852
- kilo — A unit of weight equal to one thousand grams; short for kilogram.; frequency rank 10237
- gram — A metric unit of mass equal to one thousandth of a kilogram (symbol: g).; frequency rank 12416
- liter — A metric unit of volume equal to one cubic decimeter.; frequency rank 18222
- centimeter — A unit of length equal to one hundredth of a metre.; frequency rank 29729
- round off — to express a number approximately by reducing its precision
- step off — to measure a distance by walking and counting paces

### B1
- angle — The space between two lines or surfaces that meet, measured in degrees.; frequency rank 3556
- pound — A unit of weight equal to about 454 grams (16 ounces).; frequency rank 3995
- measure — To find the size, amount, or degree of something.; frequency rank 4031
- height — How tall a person or thing is.; frequency rank 4174
- formula — A mathematical or scientific rule written with symbols.; frequency rank 5057
- length — How long something is from one end to the other.; frequency rank 5313
- volume — How loud a sound is.; frequency rank 5724
- depth — The distance from the top to the bottom of something.; frequency rank 5855
- mathematics — The study of numbers, shapes, quantities, and the relationships between them.; frequency rank 9218
- measurement — The act or process of measuring something.; frequency rank 19205
- arithmetic — The basic mathematics of adding, subtracting, multiplying, and dividing numbers.; frequency rank 19307
- graph — A diagram that shows the relationship between sets of numbers, usually drawn with lines or bars.; frequency rank 20654
- milliliter — a metric unit of volume equal to one thousandth of a liter; frequency rank 94122
- tape-measure — a flexible strip marked for measuring length

### B2
- dimension — A measurement such as length, width, or height.; frequency rank 6682
- triangle — A flat shape with three straight sides and three angles.; frequency rank 7828
- equation — A mathematical statement that two amounts or expressions are equal.; frequency rank 9036
- ounce — A unit of weight equal to about 28 grams, or one sixteenth of a pound.; frequency rank 9774
- statistics — A set of numbers that gives information about something.; frequency rank 10155
- pi — The number (about 3.14159) you get when you divide a circle's circumference by its diameter.; frequency rank 10351
- theta — the measure of an angle.; frequency rank 11833
- geometry — the branch of mathematics that studies points, lines, shapes, surfaces, and spatial relationships; frequency rank 14771
- millimeter — A unit of length equal to one thousandth of a metre.; frequency rank 17593
- width — How wide something is; the distance from one side to the other.; frequency rank 18700
- carat — a metric unit of mass equal to 200 milligrams, used for gemstones and pearls; frequency rank 33380

### C1
- centimetre — An SI unit of length equal to 10⁻² metres. Symbol: cm; frequency rank 49554
- tot up — to add amounts together to find their total

### C2
- tod — a former British unit of weight for wool, usually equal to 28 pounds (about 12.7 kilograms); frequency rank 16200
- fathom — (mining) a unit of volume (equal to 6 cubic feet) used in measuring bodies of ore; frequency rank 18276
- kerchief — a square scarf that is folded into a triangle and worn over the head or about the neck; frequency rank 33662
- quintal — a metric unit of mass equal to 100 kilograms; frequency rank 77105
- hundredweight — in the United States, a unit of weight equal to 100 pounds, or about 45.36 kilograms; frequency rank 90412
- covariance — the way two quantities vary together; in mathematics and statistics, a measure or transformation property of such variation

### C2+
- en — a unit of measurement in typography equal to half an em
- variance — the fact of differing or disagreeing; a measure of spread in statistics
- bu — a former Japanese unit of length or coinage
- mil — a unit of length equal to one thousandth of an inch
- modulus — a numerical measure of a physical property, or the remainder in arithmetic
- scalenum — a scalene triangle, having three sides of unequal length