Help with Bash user input

I am starting to learn how to use bash and I would like the script to do the following:

Asks the user for his/her name
Asks the user for one number
Asks the user for another number
Then it adds the two numbers,
Also multiply the two numbers
I have the part where you get the name, and I know how to ask for user input, but how do I implement it into adding and using math in bash
Please help, thanks

Is this homework?

Not really, I am reading the lectures ahead of my class, because my other courses are destroying me. The slides are not the best, so I needs help

You can have all the help you need.

Just be sure to postin the correct forum. Homework and coursework questions should be posted in this forum under special homework rules.