Terms of use

These terms apply to everyone who uses NumberCampus. By using the site you agree to them; if you don't agree, please don't use it.

Who runs the site

NumberCampus is run by Nicolas Conde (Bergamo, Italy). You can reach us at [email protected].

The service

NumberCampus provides free math lessons, practice problems and quick checks. Every lesson can be read without an account. Accounts are free too, and only exist so you can save your progress and pick it up on other devices.

The site is supported by advertising, so some pages may show ads, as explained in our privacy policy and cookie policy.

Using our content

The lessons, examples, practice problems and design of this site are original work by NumberCampus and are protected by copyright.

• You may read them, print them and use them to study. Teachers may use them in class and hand out copies to their students, as long as they credit the source (NumberCampus and the lesson's address).
• You may share a link to any page.
• You may not republish the lessons, in whole or in part, on other websites, apps, books or courses, or sell them, without our written permission.

If you'd like to use our content some other way, just ask. We're usually happy to help.

Accuracy

We write and check every lesson carefully, but mistakes can still slip through. The lessons are for learning and don't replace your textbook or your teacher's instructions. If you find an error, please tell us through the contact page and we'll fix it as soon as we can.

Your account

• To sign up you need a name, a valid email address and a password. Users under 14, or under the minimum age set by the law of their country if it's higher, need permission from a parent or guardian.
• Keep your password private. If you think someone else knows it, change it or contact us.
• You can delete your account at any time from your profile page.
• We may suspend or close accounts used to harm the site or other users, for example through automated access or attempts to break its security.

Fair use of the site

Don't copy the site automatically (scraping), flood it with requests, try to get around its security, or use it for anything illegal.

Links to other sites

Some pages link to other websites, including through ads. We don't control those sites and aren't responsible for what they contain.

Availability and liability

We try to keep the site running at all times, but we can't promise it will always be available: it may be down for maintenance or technical problems, and its content may change. To the extent the law allows, NumberCampus is not liable for damages arising from using the site or being unable to use it. This doesn't affect any rights you have that the law says can't be waived.

Changes to these terms

We may update these terms from time to time. The date of the latest change is shown at the bottom of this page. If the changes are significant and you have an account, we'll let you know.

Governing law

These terms are governed by Italian law. If you use the site as a consumer, you keep any protections given to you by the laws of the country where you live.

Last updated: Oct 28, 2026