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.
Keep training
Mental Math trains arithmetic fluency — the speed at which you retrieve and combine number facts. It leans on both processing speed and working memory (holding partial results while you compute). Arithmetic fluency is closely tied to overall maths confidence, especially in school years.
Who benefits most — no medical claims, just where the research points
Quick, automatic number sense frees working memory for the harder parts of a problem.
Fast estimates and sanity-checks are everyday superpowers in finance, trades and beyond.
A pleasant, low-pressure way to keep numerical skills active and warm.