Hi Sergio,
I believe you are looking for the math module available here:
https://marketplace.mendix.com/link/component/112522
Hello,
In Mendix Studio Pro => Under Marketplace tab -> Search for Math Module -> select module and download
https://marketplace.mendix.com/link/component/112522
Refer sample application URL: https://mathenginetestapp-sandbox.mxapps.io/p/simple