I made a calculator that can calculate any number, It can also calculate negative ( - ) numbers. It can also do addition, subtraction, multiplication and division. Just click which one you want. then the calculator will say 'number' all you have to do is give the first number, after you send it will say (+,*,/,-) depending on which one you picked, you will then add you're other number, send it and it will give you the answer.
My friend helped me kinda, because i saw what he made and it had a lot of code, so i decided to make my own with less code. so thanks to him.