How to add 2 numbers from user input using custom actions?

I am new to Rasa, Can anyone please help me step by step changes to add two numbers in python calculations(custom actions) in domain file or nlu file and stories file!!

I want to provide input as - “Add 10 and 24” something like this.

I have done - “rasa init” please guide me step by step how to achieve the result of addition?

There’s a course you should go through in the Rasa Learning Center called “Conversational AI with Rasa”. There’s also a good blog post on entity extraction here.