The project only goes up to 10,000, because if I went higher, it would become much harder. Feel free to remix and make me say any number you want. And no decimals. I didn't put that in either. So you can't make me say 4,206.9.
All I did to make this project was to record myself saying numbers like five thousand five hundred fifty-five, seven thousand seven hundred seventy-seven, etc., and then break them down into "five thousand", "five hundred", "fifty", and "five", and then name them "5000", "500", "50", and "5", in order for the code to work. It's a very simple process, except for when you start creating the actual code. When one of the digits is "0", I simply say nothing, except for when it's a single-digit number.