How do you write roman numarals?

Answer 1

Roman numerals are written with different characters. "I" represents 1. "V" represents 5, and "X" represents 10 (just to name a few). If the same character occurs two or three times in a row, you add the values. If a large value is followed by a smaller value then you also add the value. If a smaller value comes before a larger value, then you subtract. It makes more sense through example. I represents the value of 1. II represents 1+1 which is 2. III is 1+1+1=3. V is 5. Four in not written IIII. Instead you simply subtract by writing IV which stands for 5-1=4. Then six is VI which is 5+1=6. Then VII, 7, and VIII, 8. X represents 10. So nine is represented by IX which is 10-1=9. Then eleven is XI and so on. The first twenty numbers in order are: I, II, III, IV, V, VI, VII, VIII, IX, X, XI, XII, XIII, XIV, XV, XVI, XVII, XVIII, XIX, XX Another way to think about changing our number system to roman numerals is to split up the number into groups. Consider the number 14. It can be written as a sequence of 10's, 5's, and 1's. Note also that no more than 3 of one value can be used in a row. So we must do 10+5-1 (realize we can't use 10+1+1+1+1 because that has more than three one's in a row). Then we translate all subtraction into roman numerals. So 5-1 is IV. Then do the addition, so XIV.