Mathematics
Arithmetic, algebra, geometry, statistics and probability.
Study guides
- How to Revise AlgebraCornerstone guide
- Fractions, Decimals and Percentages ComparedSupporting explainer
- Solving Linear Equations Step by StepWorked example
- Solving Quadratic EquationsSupporting explainer
- Area, Perimeter and Volume FormulasQuick revision
- The Pythagorean TheoremSupporting explainer
- Mean, Median, Mode and RangeSupporting explainer
- Probability BasicsSupporting explainer
Key vocabulary
- AreaThe amount of surface a 2D shape covers.
- CoefficientA number that multiplies a variable.
- EquationA statement that two expressions are equal.
- EventA set of one or more outcomes in probability.
- ExpressionA combination of numbers, variables and operations without an equals sign.
- FactorA number or expression that divides another exactly.
- FractionA number that represents part of a whole, written as one number over another.
- HypotenuseThe longest side of a right-angled triangle, opposite the right angle.
- InequalityA statement that compares two expressions using less than, greater than or similar signs.
- MeanThe sum of all values divided by the number of values.
- MedianThe middle value when data is arranged in order.
- ModeThe most frequent value in a data set.
- OutcomeOne possible result of a probability experiment.
- PercentageA fraction expressed out of 100.
- PerimeterThe total distance around the outside of a 2D shape.
- ProbabilityA number from 0 to 1 that measures how likely an event is.
- Quadratic equationAn equation that can be written as ax squared plus bx plus c equals 0, where a is not zero.
- RadiusThe distance from the centre of a circle to its edge.
- RangeThe difference between the largest and smallest values.
- RatioA comparison of two quantities showing how many times one contains the other.
- Right angleAn angle of exactly 90 degrees.
- RootA solution of an equation, or a number that when multiplied by itself a given number of times gives a value.
- VariableA symbol, often a letter, representing a quantity that can change or is unknown.
- VolumeThe amount of space inside a 3D object.