Number Sequence
About Number Sequence
Number Sequence is a free logic puzzle that shows you a run of numbers and asks you to work out the rule and give the next one. The pattern might be a simple step, a doubling, a run of squares, or something that combines two rules at once. It is a compact, satisfying test of numerical reasoning that plays in your browser with no account or download.
How to play
- Look at the sequence of numbers shown.
- Work out how each number relates to the one before — the rule.
- Apply that rule to find the number that comes next.
- Enter your answer and move on to the next sequence.
What it trains
Spotting number patterns is a core part of numerical and abstract reasoning, tested in the 11+, GCSE maths and many employer aptitude assessments. Working out the underlying rule strengthens logical thinking, pattern recognition and mental arithmetic together — skills that transfer to problem-solving across school, work and everyday life.
How to crack the pattern
- Check the difference between consecutive terms — is it constant?
- If differences grow, look for multiplication, squares or cubes.
- Check ratios: dividing terms can reveal a doubling or halving rule.
- Watch for two interleaved sequences, or a rule that adds then multiplies.
Frequently asked questions
What kinds of patterns appear?
A range — constant steps, doubling and halving, squares and cubes, and combined rules — so the difficulty varies from round to round.
Does this help with exams?
Yes. Sequence questions appear throughout numerical and non-verbal reasoning tests, so regular practice is genuinely useful.
Is it free?
Yes, it is free to play with no sign-up or download.