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Which symbols stand for 1, 5, 10, 50, 100, 500, and 1,000 in Roman numerals?

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In the Roman numeral system, the following symbols represent the specified values:

| Value | Symbol |
| :--- | :--- |
| 1 | I |
| 5 | V |
| 10 | X |
| 50 | L |
| 100 | C |
| 500 | D |
| 1,000 | M |

These symbols are used in combination to represent other numbers through additive and subtractive principles. For example, a symbol placed after one of equal or greater value adds to the total, while a symbol placed before one of greater value is subtracted from it. While these symbols are standard, historical variations existed, such as the use of different characters for 1,000 before M became the established form during the Middle Ages.12