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C1 Level Wordlist - Mathematics

Here you will learn some English words about mathematics, such as "factor", "radius", "infinite", etc. prepared for C1 learners.

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CEFR C1 Vocabulary
diameter
diameter
[noun]

a straight line from one side of a round object, particularly a circle, passing through the center and joining the other side

Ex: The diameter of a circle is the longest distance between any two points on its circumference, passing through the center. 
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radius
radius
[noun]

the length of a straight line drawn from the center of a circle to any point on its outer boundary

Ex: The radius of a circle is half the length of its diameter, extending from the center to any point on the circumference. 
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ratio
ratio
[noun]

the relation between two amounts indicating how much larger one value is than the other

Ex: The debt-to-income ratio is a crucial factor in determining a person's creditworthiness. 
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decimal
decimal
[noun]

(mathematics) a number less than one, called a fraction, that is represented as a period followed by the number of tenths, hundredths, etc.

Ex: In mathematics, decimals are a way to represent fractions or portions of a whole using a decimal point. 
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equation
equation
[noun]

(mathematics) a statement indicating the equality between two values

Ex: In algebra, solving equations involves finding the values of variables that satisfy the equality stated. 
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subtraction

the mathematical process of finding the difference between two numbers, quantities, or expressions

Ex: In subtraction, 15 minus 7 equals 8. 
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formula
formula
[noun]

(mathematics) a rule or law represented in symbols, letters, or numbers

Ex: The quadratic formula provides a method for finding the roots of a quadratic equation. 
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function
function
[noun]

(mathematics) a quantity whose value changes according to another quantity's varying value

Ex: In calculus, a function represents a relationship between input and output variables, often denoted as f(x). 
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factor
factor
[noun]

(mathematics) one of the numbers that another number can be divided by

Ex: A factor of a number divides it evenly without leaving a remainder. 
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dividend
dividend
[noun]

(mathematics) the number to be divided in a division problem

Ex: In division, the dividend is the number that is being divided. 
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divisor
divisor
[noun]

(mathematics) the number that divides another number in a division problem

Ex: A divisor is a number that divides another number evenly without leaving a remainder. 
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mathematical
mathematical
[Adjective]

related to or used in mathematics

Ex: She employed mathematical equations to solve complex problems in physics. 
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minimal
minimal
[Adjective]

very small in amount or degree, often the smallest possible

Ex: She applied only a minimal amount of makeup for a natural look. 
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numerical
numerical
[Adjective]

represented in numbers

Ex: The numerical values of the measurements were recorded in a spreadsheet. 
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countless
countless
[Adjective]

so numerous that it cannot be easily counted or quantified

Ex: The night sky was filled with countless stars. 
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endless
endless
[Adjective]

very great in number, amount, or size and seeming to be without end or limit

Ex: The endless fields of wheat stretched out as far as the eye could see. 
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infinite
infinite
[Adjective]

(of a math sequence) having the ability to be continued forever

Ex: The sequence of natural numbers (1, 2, 3, 4, 5, ...) is infinite. 
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ordinal
ordinal
[noun]

a number that indicates the position of something in a sequence, such as third, second, etc.

Ex: In a race, the runner who finishes in first place is said to be the winner of the first ordinal. 
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bracket
bracket
[noun]

each of the two symbols [ ] used to indicate that the enclosed numbers or words should be considered separately

Ex: In mathematical expressions, brackets [ ] are used to group terms or indicate priority in operations. 
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segment
segment
[noun]

(geometry) a part of a circle that is separated from the rest by a line

Ex: A circle is divided into several segments by two radii and the arc between them. 
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solid
solid
[noun]

(geometry) a shape that is not two-dimensional because it has height, width, and length

Ex: A cube is an example of a solid shape with six faces, all of which are squares. 
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to express

(mathematics) to indicate something by a formula, symbol, etc.

Ex: To solve the problem, we need to express the given data in the form of mathematical expressions and equations. 
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to total
to total
[Verb]

to add up numbers or quantities to find the overall amount

Ex: To total the expenses, add up all the receipts from the business trip. 
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metric system

a standard of measurement that is based on the kilogram, the meter, and the liter

Ex: The metric system is an internationally recognized standard of measurement used in most countries around the world. 
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barrel
barrel
[noun]

the amount that a barrel, of any given size, can contain

Ex: Each holds a barrel of maple syrup. 
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hectare
hectare
[noun]

a land measurement unit that equals 10000 square meters or 2471 acres

Ex: A hectare is a unit of area equal to 10,000 square meters or approximately 2.47 acres. 
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horsepower

a unit for measuring an engine's power

Ex: Horsepower is a unit of power used to measure the rate at which work is done. 
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pace
pace
[noun]

a measure of length that equals the distance traveled between two steps during a walk

Ex: A pace is a traditional unit of length equal to the distance covered by a single step or stride. 
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pint
pint
[noun]

a measure equal to 16 fluid ounces, often used for measuring liquids such as beer or milk

Ex: I'll have a pint of beer, please. 
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proof
proof
[noun]

a scale for measuring the strength of alcoholic beverages

Ex: In the United States, proof is a measure of the alcohol content in beverages, with 1 proof equal to 0.5% alcohol by volume. 
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quart
quart
[noun]

a unit of volume measurement the United States for liquids, equal to 32 fluid ounces or approximately 946 milliliters

Ex: A quart is a unit of volume equal to 32 fluid ounces or approximately 0.946 liters. 
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score
score
[noun]

a set or group of twenty or approximately twenty people or things

Ex: The farmer harvested a score of apples from his orchard. 
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miles per hour

the distance traveled in miles in relation to the time passed when doing so

Ex: Miles per hour (mph) is a unit used to measure speed, representing the distance traveled in miles per hour of time. 
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value
value
[noun]

(mathematics) an amount that is shown by a sign or letter

Ex: In algebra, variables represent unknown values that can be determined through equations. 
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variable
variable
[noun]

(mathematics) a quantity that is capable of assuming different values in a calculation

Ex: In algebra, variables such as x, y, and z represent quantities that can vary or change in value. 
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