This deep dive covers Method: Finding the nth Term within nth Term for GCSE Mathematics. Revise nth Term in Algebra for GCSE Mathematics with 11 exam-style questions and 4 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 3 of 7 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 7
Practice
11 questions
Recall
4 flashcards
Method: Finding the nth Term
1
Find the common difference (d)
Subtract consecutive terms: 2nd − 1st = d
2
Write dn as the start of your formula
If d = 4, start with "4n"
3
Compare to the sequence
Work out what to add or subtract to match the first term
If 4n gives 4, 8, 12... but sequence is 3, 7, 11... need to subtract 1
4
Write the full formula and check
Test it works for n=1, n=2, n=3