German Words for Numbers (20-30)

Provide the spelled-out names for these numbers in standard German. Letters found in the German alphabet but not the English alphabet (Ä, Ö, Ü, and ß) will register if you type them in, but if you are using a keyboard that doesn't have these letters, simply type an 'e' after the desired vowel to replace an umlaut (for example: 'ä' = 'ae') or use a double 's' to replace an eszett ('ß' = 'ss').