Multiple choice What is the Roman Numeral for 99? XCIX XXVII XIV IIVXC Reveal answer Fill a bubble to check yourself A Correct answer Explanation To write 99 in Roman numerals, we break it down into 90 and 9. 90 is written as XC (10 subtracted from 100) and 9 is written as IX (1 subtracted from 10), giving XCIX.