Time30s
Score0
Streak0
Best0
How to play
- Choose Easy, Medium or Hard.
- Type the answer and press Enter (or tap Submit).
- Keep going until the 30-second timer ends.
Tips
- Break big numbers apart: 47 + 38 is 47 + 40 − 2.
- Skip nothing — wrong answers do not cost you points, they just waste time.
- Use the number keys instead of tapping on mobile for speed.
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