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Arithmetic Sequence - GCSE Maths Definition

Reviewed by: Dan Finlay

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An arithmetic sequence, also known as an arithmetic progression, is a list of numbers in which the difference between any two consecutive terms is always the same, called the common difference. In GCSE Maths, understanding arithmetic sequences is essential as they provide a foundation for identifying patterns and solving various mathematical problems. For example, in the sequence 2, 5, 8, 11, the common difference is 3, since you add 3 to each term to get to the next one.
The nth term of an arithmetic sequences can be written in the form a n plus b where a and b are constants.

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Dan Finlay

Reviewer: Dan Finlay

Expertise: Maths Lead

Dan graduated from the University of Oxford with a First class degree in mathematics. As well as teaching maths for over 8 years, Dan has marked a range of exams for Edexcel, tutored students and taught A Level Accounting. Dan has a keen interest in statistics and probability and their real-life applications.

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