This portal is intended to show some of the basic tools of mathematics in order to facilitate their understanding, eventually we can address more complex issues of mathematics, provided we have laid a solid foundation for its construction.
The proposed examples and exercises, rather than showing tricks to do them quickly, are intended to show the reasoning process to reach the solution, however, an extended form and a summarized way will always be shown on how to approach them.
Below are the contents developed in totumat, each one has been exposed in periodicals posts.