Key words for GCSE Maths

gradient 
A gradient is how steep a slope is.


gram 
A gram is a thousandth of a kilogram.


HCF 
HCF stands for highest common factor.


indices 
Indices show the power of a quantity.


integer 
An integer is a whole number.


irrational 
An irrational number is a number that is not an integer but cannot be expressed as a common fraction.


LCM 
LCM stands for lowest common multiple.


natural 
Positive or counting numbers are also called natural numbers.


numerator 
The number above the line in a fraction is called a numerator.


prime 
A prime number can only be divided by one and itself.


product 
A product is the result of multiplying two numbers together.


rational 
Integers and decimals are rational numbers.


reciprocal 
The reciprocal of 2 is 1/2.


sum 
The sum of two numbers is calculated by adding them together.


triangular 
Triangular numbers are a pattern of numbers that form an equilateral triangle shape.


surd 
An irrational number that is expressed as the root of a natural number is called a surd.


binomial 
A binomial expression is made up of two terms.

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