Mental Math · Mental Maths Sprint
You'll see one arithmetic problem at a time — addition, subtraction and multiplication, getting trickier as you go. Type your answer and it auto-advances the instant it's correct. Solve as many as you can in sixty seconds.
How to play Mental Math
You'll see one arithmetic problem at a time — addition, subtraction and multiplication, getting trickier as you go. Type your answer and it auto-advances the instant it's correct. Solve as many as you can in sixty seconds.
What it measures
This is a test of calculation fluency and processing speed — how fast you retrieve number facts and run small operations in your head. It leans on working memory too, since you hold the problem while you compute.
Honest note: You'll get faster at mental arithmetic by practising mental arithmetic. That's a real, useful skill — not a claim about rewiring your brain.
What's a good score?
Most people clear 15–30 problems in a minute; past 35 is quick. The percentile we show is an estimate based on typical distributions, not a clinical norm.
FAQ
Do I press enter?
No — when your answer matches, it advances automatically. Just keep typing.
How hard does it get?
It scales with your score: later problems bring bigger numbers and multiplication.