Test
Numbers in Roman numeration
In Roman numerals, the symbols represent the following values:
I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1000.
These symbols are combined to represent different numbers.
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Sample questions
- Mark the correct Roman numeral equivalent of the number ___
- Mark the correct decimal equivalent of the ___ number in the Roman numeral system.
- Choose the correct Roman-numeral form of ___.
- What number does the Roman numeral ___ represent?
Roman numerals
Roman numerals use the symbols I = 1, V = 5, X = 10, L = 50, C = 100, D = 500 and M = 1000. When reading from left to right, a smaller or equal symbol after a greater one is added, while a smaller symbol before a greater one is usually subtracted.
Main combinations
- IV = 4 and IX = 9.
- XL = 40 and XC = 90.
- CD = 400 and CM = 900.
For example, XIV = 10 + 4 = 14 and XCIII = 90 + 3 = 93. V, L and D are normally not repeated, while I, X, C and M are repeated no more than three times in succession. Check an answer by separating the notation into individual values.
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