Six hundred fifty.
Six Hundred and Fifty
Εξακόσια-πενήντα [exakOsia-penEEnta]
Twelve.
650 in Roman numerals is DCL
6.5 as a percent = 650%6.5 * 100% = 650%
If they know the language, then yes. They also "borrow" English words and on occasion write them in English instead of katakana.
Sixty-one.
30 = thirty
Please write your question in English, if you know how to write in English.
six hundred fifty.
650,000,000,000
Thirty-five billion.