Math
Kopfrechnen
Daily puzzle
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The daily mental-math sprint: plus, minus, times, divided — against the clock.
Warm up your head
Task 1 of 3 — no clock, just the feel
The same exercise series for everyone, every day — who works through it fastest? Play as a guest or compete against your friends in arenas with an account. No ads, free.
How it works
- Solve the exercise series in order — every correct answer takes you to the next one.
- Wrong answers cost a heart and a time penalty; after three mistakes the attempt is over.
- Your time plus penalties is your score — practice mode offers three difficulty tiers.
- You have 3 hearts — every mistake costs one. No hearts left means the attempt is over.
Three tiers, one principle
Easy
10 tasks — small numbers, quick start.
Medium
15 tasks — the daily competition level.
Hard
20 tasks — big multiplication and beyond.
Pace matters: every mistake costs a heart and penalty time — calm AND fast wins.
Sizes: leicht · mittel · schwer