About Mental Math Daily
Mental Math Daily is a free practice tool for the calculations that show up constantly in exams, interviews, and everyday estimation: multiplication tables, squares, cubes, powers and general arithmetic.
The design goal is short, frequent, honest practice rather than long occasional sessions. Every answer is scored immediately, accuracy is tracked per topic (not just overall), and anything answered incorrectly is automatically queued into a review list — it stays there until you answer it correctly twice in a row, rather than disappearing after one lucky guess.
A daily test mode pulls a fixed mix of questions across every topic and drives a day-streak counter, as a light nudge toward practicing regularly instead of cramming.
How your data is handled
All progress — accuracy, streaks, session history, and the review queue — is stored locally in your browser's storage. Nothing is sent to a server, there's no account or sign-up, and clearing your browser data or using a different device starts fresh.
Offline & installable
The app is a installable Progressive Web App — it can be added to your home screen or desktop and used fully offline once installed, so practice isn't dependent on a working connection.