Math practice · reimagined
Properties
Turn Properties 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 4–99+ · no download · plays in your browser · 23 languages
How it works
Properties
Pick a fighter, choose Properties, 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.
The commutative law says order doesn't matter for adding or multiplying. 3 × 7 is exactly the same as 7 × 3.
So if you see 7 × 4 = ? × 7, the blank is just the other number — 4 — because swapping the order can't change the answer. Three rows of chairs or chairs in three columns: same number of chairs.
Fill in the number that makes both sides equal.
More math to master
— Quick answers —
Properties: the short FAQ
- Is Properties free to play?
- Yes. Properties is free to play right in your browser — the whole curriculum, no download, no signup. Paid plans later unlock the full fighter roster, every stage and saved progress.
- Who is Properties for?
- Anyone from 4 to 99+. 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 Properties?
- Nope. Properties runs in any browser, on a laptop, tablet or phone.
- Can Properties be used in the classroom?
- Absolutely. Teachers run Properties with a whole class and track who's improving — see the schools plan for per-student pricing and a teacher dashboard.