14 entries
Maths words beginning with E
- Edge
- The line where two faces of a solid shape meet.
- Elapsed time
- The amount of time that passes between a start time and an end time.
- Equation
- A statement that two things are equal, written with an equals sign. It is true when both sides have the same value.
- Equation
- A mathematical statement that two expressions are equal, joined by an equals sign. Solving it means finding the values that make it true.
- Equivalent fraction
- A fraction that names the same amount as another, written with different numbers.
- Estimate
- A quick answer that is close to the exact one, found by rounding the numbers first.
- Even number
- A whole number that can be split into two equal groups with nothing left over. Even numbers end in or .
- Event
- In probability, a set of one or more outcomes of an experiment.
- Exchange
- In column subtraction, trading one of a place for ten of the place to its right so that a digit can be subtracted. Also called borrowing.
- Exchange rate
- How much of one currency equals one unit of another. It is used to convert prices between currencies.
- Expand
- To multiply out a bracket so that every term inside is multiplied by the term outside.
- Exponent
- The small raised number in a power, showing how many times the base is multiplied by itself. Also called an index or power.
- Expression
- A combination of numbers, variables and operations that represents a value. Unlike an equation, it has no equals sign.
- Exterior angle
- The angle between one side of a polygon and the extension of the next side.