C# game, need help

Question

I need help, how i can generate numbers ex: if the user picked number 1 then it randomly generates a number ex. 6. If he chooses 2 then ex. 67 and etc.
https://code.sololearn.com/cn0yp098cXBT/?ref=app
https://code.sololearn.com/cn0yp098cXBT/?ref=app

Answer 1

try math.random()

Answer 2

Fixed it out i needed to add using math

Answer 3

@dominique abou samah doesnt work, says math doesnt exist