Everything Maths Grade 10. Chapter 4: Number patterns.

1. 1
Everything Maths www.everythingmaths.co.za
3. Number patterns
Grade 10

2. 2
Everything Maths www.everythingmaths.co.za
Sequences
A sequence is an ordered list of items, usually numbers. Each item which makes up a
sequence are called 'terms'.

3. 3
Everything Maths www.everythingmaths.co.za
Describing sequences
● The general term is often expressed as the nth
term and is written as Tn
.
● Linear sequences can be written as a general formula, which is used to calculate any term
in the sequence.
● The common difference (d) is the difference between any term and the term before it.
d=Tn−T(n−1)

4. 4
Everything Maths www.everythingmaths.co.za
For more practice see:
www.everythingmaths.co.za