Numerio - Mental Math Trainer

A mental-math trainer for kids (and anyone who wants faster math). Practice basics to fractions/percents, choose your level, and track progress with clear stats.

Numerio is a mental math trainer for kids and anyone who wants faster, more confident math. Practice a little each day and watch your speed and accuracy improve.

Train the skills that actually matter

From the basics to more advanced topics, Numerio helps you build real number sense:

Addition (+), subtraction (−), multiplication (×), division (÷)

Fractions and percents

Squares and square roots

Complements and mixed practice

Choose how you want to practice

Whether you want calm repetition or a quicker challenge, you’ll find a mode that fits:

Classic – steady training and consistency

Arcade – faster, more exciting sessions

Practice – focus on specific skills and difficulty

Tables – multiplication tables 1–12 for quick recall

Stats that show what to improve

Numerio tracks your progress with clear, detailed stats so you can see:

what you’re great at

what needs work

how your speed and accuracy change over time

Privacy-first and offline

No account, no backend, no tracking. Your progress is saved on your device. (If you delete the app, the saved progress will be removed as well.)