Play
Use keyboard or the on-screen keypad
Use keyboard or the on-screen keypad
Simple training for faster mental math
Quick answers, no fluff
A simple browser game for mental math. Pick a level and solve endless problems with instant feedback.
No. This version is intentionally minimal: no accounts, no leaderboards, no server-side storage.
Division tasks are generated to always produce whole-number answers (no fractions).
Yes. The layout switches to a single-column view and the keypad buttons are sized for touch.
Yes. It’s a static site. Upload the folder to any static host (Cloudflare Pages, Vercel, Netlify, GitHub Pages).
Short notes on mental math and practice
Small techniques that make you noticeably faster within a week of practice.
How to move through levels without burning out (and what to do when you plateau).
Speed comes from patterns, not rushing. Here’s a clean way to build accuracy first.
The fastest mental math comes from turning awkward numbers into friendly ones.
Subtraction feels slow when you try to do it like on paper.
You don’t need to memorize everything—just a few patterns.