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Maths

Recognising sequences

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A sequence is a set of numbers that are connected in some way. For your exam, you will need to learn how to recognise different types of sequence, how to find missing terms, and how to find a general term.

Recognising sequences

A sequence is a list of numbers. The numbers are called the terms of the sequence.

There are many well-known sequences of numbers which you should be able to recognise.

Even numbers

2, 4, 6, 8, 10, 12…

Odd numbers

1, 3, 5, 7, 9, 11…

Square numbers

1, 4, 9, 16, 25, 36, 49, 64…

Cube numbers

1, 8, 27, 64, 125…

Powers of 2

2, 4, 8, 16, 32, 64…

Powers of 10

10, 100, 1,000, 10,000, 100,000, 1,000,000…

Triangle numbers

1, 3, 6, 10, 15, 21, 28…

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