Number Series: free online game
Number sequences to complete: find the hidden rule and pick the next number. Reasoning practice, IQ-test style.
Play Number SeriesFree, zero ads, no sign-up, on mobile and desktop.
How to play
3, 7, 11, 15… ? Pick the next number out of 4 choices, series after series.
What this game trains
- Logical reasoning: deduce the solution from the rules, without guessing.
- Mental arithmetic: calculate in your head, fast and right.
Levels
Easy · Hard · Expert · Hardcore — each level has its own leaderboard.
Challenge your friends
At the end of a game, send your score as a link: your friend plays exactly the same puzzle and you compare your times. There is also a daily challenge and tournaments.