Q:

How do I read Roman numerals?

A:

In order to read Roman numerals, make sure to know what each symbol means, when numbers add or subtract, and how to handle somewhat-larger numbers.

  1. Know each symbol

    In Roman numerals, M equals 1,000, D equals 500, C equals 100, L equals 50, X equals 10, and I equals one.

  2. Add numbers when bigger is followed by smaller

    When a larger number is followed by a smaller number, such as XI, the numbers are added. Thus, XI = 10 + 1 = 11.

  3. Subtract numbers when smaller is followed by bigger

    When it is the opposite, such as IX, the smaller number is subtracted from the bigger number. So, IX = 10 - 1 = 9.

  4. Use only three of the same symbol together

    When using multiple numbers of the same value, no more than three of the same symbol should appear together. If four are needed, it should be that value subtracted from the next-largest value. Examples include XL = 40, IV = 4 and CD = 400.

  5. Add a bar on top if multiplying by 1,000

    For each value above one, placing a bar or vinculum above the number multiplies it by 1,000. For instance, an X with a vinculum is 10,000.


Is this answer helpful?

Similar Questions

  • Q:

    What is 1,000,000 in Roman numerals?

    A:

    Nowadays, 1,000,000 is noted in Roman numerals by an M with a line under it. However, it used to be marked by an M with a line above it.

    Full Answer >
    Filed Under:
  • Q:

    What is "400" in Roman numerals?

    A:

    The equivalent of 400 in Roman numerals is CD. In the Roman numeral system, letters represent numerals. The basic Roman numerals and their numeric equivalents are as follows: "I" equals 1, "V" equals 5, "X" equals 10, "L" equals 50, "C" equals 100, "D" equals 500 and "M" equals 1,000.

    Full Answer >
    Filed Under:
  • Q:

    What is 17 in Roman numerals?

    A:

    The Arabic number "17" is written as "XVII" in Roman numerals. The "X" represents a quantity of ten, the "V" represents a quantity of five, and "I" represents a quantity of one. The sum of the Roman numerals identifies its numeric value.

    Full Answer >
    Filed Under:
  • Q:

    What is 666 in Roman numerals?

    A:

    The number 666 is written as DCLXVI in Roman numerals. The letters stand for 500, 100, 50, five and one respectively. There are only seven symbols in Roman numerals.

    Full Answer >
    Filed Under:

Explore