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# What does the "C" stand for in Roman numerals?

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In Roman numerals, "C" stands for the number 100. This is based on the Latin word "centrum," which means "100." As of 2014, Roman numerals are still occasionally used, such as seen in the British monarch Queen Elizabeth II.

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The Romans used certain letters to represent numbers. In addition to "C,"the Roman numerals are:

• I: 1
• V: 5
• X: 10
• L: 50
• D: 500
• M: 1,000

Additional numbers can be created by addition and subtraction. When several of the same number was written in a row, the group was added together. For example, XX is 10+10, which is 20. If a smaller number was before a larger one, then the number was subtracted. For example, IX is 10-1, which equals 9.

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## Related Questions

• A:

The Roman numerals for one to five are I, II, III, IV and V. The Roman numeral system assigned number values to certain letters in the Roman alphabet. By combining these letters according to their own placement rules and applying simple arithmetic, the ancient Romans were able to represent a large range of numbers.

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• 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.

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• 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.