In Chrome, due to the browser, you can type math problems into the address bar, and the answer will be displayed. It would be nice if this was a feature in Brave.
In the Additional settings, go to “Privacy and security”, then find “Autocomplete searches and URLs”, and turn it on.
The calculation works when you are using the google search, because the whole time you are typing you are sending data to them. If you use another search engine, you can just type :g followed by the calculation and it will solve.
This is not a needed feature, since it does exist.