Online logic game

Number Sequences: find the pattern and continue the series

Also known as: complete the sequence, number sequence puzzles, number patterns

Look at how the numbers change and pick the next one from four options. A round lasts two minutes, and three correct answers in a row move you up a level. You can play 10 minutes a day without signing up.

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2 minutesper round
6 levels6 sequence types
No sign-up10 minutes a day
Progress30-day chart

What it trains

Why solve number sequences

The exercise works on pattern finding and mental math: you need to spot the rule from a few numbers, check it across the whole series and work out the next one. On higher levels the rule gets trickier: two sequences run interleaved, or adding alternates with multiplying.

In your account the trainer has the same name: “Number Sequences”. Once you sign up, every round is saved: you see your score, correct answers, mistakes and the highest level reached, and a 30-day chart shows how your results change.

You come across these puzzles in testsMany logic tasks ask you to continue a number series
You see the numbers but miss the connectionPattern finding
You want a logic puzzle for a couple of minutesTwo minutes and the round is done
You get bored when the tasks are all the sameThe level changes after every streak of answers

Pattern finding

Spot the rule from five or six numbers.

Testing a hypothesis

Make sure the rule works for the whole series, not just two neighboring numbers.

Mental math

You have to calculate the next number: the options are spaced by the same step.

Flexibility

The rule changes from task to task: adding, subtracting, multiplying.

Rules

How to play

Start
Press “Start”. A row of five or six numbers appears with a question mark at the end.
The rule
Look at how the numbers change: by how much they grow or shrink, or how many times over.
Answer
Pick the next number from four options. If you’re wrong, we show the correct answer.
Level
Three correct answers in a row move you up a level; a mistake moves you down one.
Score
Each correct answer earns as many points as your current level. After two minutes you’ll see your score, mistakes and highest level.

Play online

Number sequences online

Pick the number that continues the series. Without signing up you get 10 minutes of play a day.

Number Sequences

Find the pattern and continue the number sequence. Three correct answers in a row and the puzzles get harder.

Free play left today without signing up: 10 min

Method

What the exercise is based on

“Continue the sequence” tasks have long been used in logic tests and math lessons. The trainer has six types of sequences: a constant step up, a constant step down, two sequences interleaved, multiplying by 2 or 3, a step that grows by one each time, and “add” alternating with “multiply by 2”.

A similar search for the rule, only with shapes, is in the Patterns trainer. For pure mental math, try Quick Math.

+3Constant stepLevels 1–2: the series goes up or down by the same number

×2Two series and multiplyingLevels 3–4: two interleaved series, then multiplying by 2 or 3

+1+2Changing stepLevels 5–6: the difference grows by one, or adding alternates with multiplying by 2

Who it’s for

Which ages

Adults

A short logic puzzle between tasks: two minutes, and you can see what level you reached.

Kids

The trainer isn’t in the “Kids” collection: higher levels need multiplication and series with a changing step. A good fit for schoolchildren who are confident with multiplication.

60+

Included in the “60+” collection. You pick the answer from four options, there’s nothing to type, and the level only goes up after three correct answers in a row. 60+ set

Questions

Frequently asked questions

Why are the answer options so close to each other?

All four options are spaced by the same step, and the correct one can be in any position. So you can’t guess the answer by its position: you have to work it out.

What happens after a mistake?

We show the correct number, and your level drops by one. That way the tasks don’t run too far ahead while a rule is still giving you trouble.

How are points awarded?

Each correct answer earns as many points as your current level: 1 on the first, 6 on the sixth. Mistakes don’t take points away.

Do I need to sign up?

No, you can play 10 minutes a day right away. A free account lets you keep playing, save your results, track your progress and unlock the daily workout.

Does it work on a phone?

Yes, the trainer runs in the browser on phones, tablets and computers. There’s nothing to install.

Save your results and track your progress

Free sign-up: round history, a chart by skill and a daily workout of 5 exercises. No credit card needed.

All trainers

Number Sequences: find the pattern and continue the series