Math practice · reimagined
Sequence
Turn Sequence into a fight you actually want to win. Every problem is an attack — solve it faster than your opponent and you land the hit.
Ages 7–70 · no download · plays in your browser · 20 languages
How it works
Sequence
Pick a fighter, choose Sequence, and trust your numbers. The faster and cleaner you solve, the harder you hit — from gentle early grades all the way to Olympic-level challenges.
A sequence is a line of numbers that follows a secret rule. Your job is to crack the rule and say what comes next.
In 2, 4, 6, 8, … each number jumps up by 2, so next is 10. Look at the gap between neighbours — if it's always the same, just add that gap again.
Type the next number in the pattern.
More math to master
— Quick answers —
Sequence: the short FAQ
- Is the Sequence free to play?
- Yes. The Sequence is free to start right in your browser — no download, no signup. Paid plans later unlock the full fighter roster and the deeper curriculum.
- Who is the Sequence for?
- Anyone from 7 to 70. The early grades stay gentle for beginners, while the higher tiers will make even the confident sweat.
- Do I need to download anything to play the Sequence?
- Nope. The Sequence runs in any browser, and there's a mobile app on the same account if you'd rather train on your phone.
- Can the Sequence be used in the classroom?
- Absolutely. Teachers run the Sequence with a whole class and track who's improving — see the schools plan for per-student pricing and a teacher dashboard.