Here are the first five terms of an arithmetic sequence.
21, 27, 33, 39, 45
Write down an expression, in terms of nnn, for the n n\,nth term of the sequence.
Practise Edexcel IGCSE Maths Sequences (Nth Term) with exam-style questions for IGCSE Maths. 18 questions, matched to the Edexcel IGCSE Maths (4MA1) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.