The answer depends on who you are writing to. Generally, small numbers (1-digit) should be written in words. Larger numbers should be rounded to a sensible degree - unless the letter requires the exact number - for example, a letter to a bank! In very formal settings you should give the number in both, words and numeral form.
The proper way to write super bowl 44 using Roman Numerals is Super Bowl XVIV.
CDLXVIII is the proper way to write the number 468 in Roman numerals. Roman culture is fascinating and wonderful to research, and roman numerals are pretty fantastic too!
One way to write 312 is by spelling it: Three hundred and twelveAnother way would be to write it in roman numerals: CCCXII
The proper way of writing a thank you letter involves being handwritten and to be personal. If no real effort seemed to be put in it, than it is not going to make the person to receive the letter feel good.
MCMXCIX EDIT: A shorter way to write it is MIM
what is the proper way to write a company's name with llc
The proper way to write "JD" is with no spaces in between the letters, as it is an abbreviation for "Juris Doctor."
It is RSVP
If you mean the way we write the numerals 0 through 9, those are called Arabic numerals.
5 is V and 1967 is MCMLXVII but there is no way to say may in roman numerals.
To include a signature for a letter, write your full name at the end of the letter, usually below a closing phrase like "Sincerely" or "Best regards."
MMCD = 2400 and that is the accepted way to write it in Roman numerals. You can also write 2400 as 100101100000 in Binary code.