How to label a digit according to its position in a number?

Question

Let's say there is some number like 12345. In Konglish (Korean English), I can label 3 as the *hundred's position number* and 5 as the *one's position number*. I don't think this is correct English. How can I label each number according to its position correctly?

Answer 1

12345

five ones

four tens

three hundreds

two thousands

one ten thousand