Frequently asked questions
Short answers about what Math Mental is and how to use it.
What is Math Mental?
A web platform for learning math along a path, with short lessons, a daily streak, review and a step-by-step solution for every question.
Is it free? How do you keep it running?
It is free and ad-free: every lesson is open, with no paid plan or trial. Server and AI costs are covered by voluntary support (one-time or monthly) and by optional extras, such as refilling hearts, which never unlock content. We do not sell data.
Who is Math Mental for?
High school students, people preparing for entrance exams, university students and adults getting back into math. The tone is adult and the notation matches the classroom.
What content is available?
From arithmetic and mental math to fractions, decimals and percentages, financial math, proportion and measurement, equations, functions and statistics. The full, always up-to-date list is on the curriculum page.
Do I need to install an app?
No. Math Mental runs in the browser on phones and computers. Create an account to save your progress.
Which languages does Math Mental support?
Brazilian Portuguese, English, Latin American Spanish and Simplified Chinese.
What is the streak?
The number of consecutive days in which you completed at least one lesson. It helps you stay consistent, which matters more than occasional long sessions.
How do step-by-step solutions work?
After answering, you see each stage of the reasoning: the strategy, the property applied and every transformation up to the result.
What happens to my data?
Math Mental collects only what the account and progress need, follows Brazil's LGPD and lets you exercise your rights from your account. See the privacy policy for details.
Your first lesson takes five minutes
Create an account, pick where to start and keep your streak from today.