Quick Math: a Mental Math Speed Challenge for Friends
Problems appear one after another with four answer buttons — no typing. Easy is simple plus and minus; hard is two-step problems like (7 × 6) − 13 with look-alike answers that swap places.
▶ Play Quick Math right now
Try it solo first — no link, no sign-up. Then dare a friend to beat you.
⚡ Challenge a friend with Quick Math
How to play
- Solve each problem and tap the right answer — no typing needed.
- 6 problems in a row.
- Plus, minus and times — and the wrong answers are close!
Easy, medium or hard?
| Level | What changes | At a glance |
|---|---|---|
| Easy | 5 problems in a row. Simple plus and minus. | ⏱ 25 s 🔁 5 problems ❌ −2 s per mistake |
| Medium | 6 problems in a row. Plus, minus and times — and the wrong answers are close! | ⏱ 30 s 🔁 6 problems ❌ −2 s per mistake |
| Hard | 8 problems in a row. Two-step problems like (7 × 6) − 13. The wrong answers are very close. ⚠️ Every 10 seconds the answer buttons swap places — watch where the right one goes! | ⏱ 40 s 🔁 8 problems ❌ −3 s per mistake |
Why it makes a great challenge
Settle the "who is faster at maths" debate once and for all — with server-measured times to the millisecond.
Here is how it works: you create a link and start a timer. Your friend has to click it in time — and only then discovers they have to beat Quick Math too. You watch every move live and can even send emoji heckles while they play.