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Roman numerals....

1 = I

2 = II

3 = III

4 = IV (or IIII on old clocks, watches and sundials)

5 = V

6 = VI

7 = VII

8 = VIII

9 = IX

10 = X

20 = XX

30 = XXX

40 = XL

50 = L

60 = LX

70 = LXX

80 = LXXX

90 = XC

100 = C

500 = D

1000 = M

2000 = MM

3000 = MMM

The numbers 11 - 19 and 21 - 29 etc follow the same pattern as the numbers 1 to 9 but preceeded by X or XX etc. The same applies to numbers preceeded by 100s or 1000s. Some examples...

14 = XIV

44 = XLIV

88 = LXXXVIII

151 = CLI

423 = CDXXIII

666 = DCLXVI

1066 = MLXVI

2009 = MMIX

Q: Calculate Roman numerals

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because it's too complicated to calculate with roman numerals. eg 11 * 9 = 99 => XI * IX = XCIX

XLVII represents -10+57 = 47

Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.

Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.

Roman numerals were inspired by Etruscan numerals of which Roman numerals originated from.

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because it's too complicated to calculate with roman numerals. eg 11 * 9 = 99 => XI * IX = XCIX

XLVII represents -10+57 = 47

Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.Twenty sever in Roman numerals is XXVII.

Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.

Roman numerals were inspired by Etruscan numerals of which Roman numerals originated from.

In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.

113 in Roman numerals is CXIII.

1830 in Roman numerals is MDCCCXXX.

1697 in Roman numerals is MDCXCVII.

They way we collate and calculate Roman numerals today differs in many aspects to how the ancient Romans actually did themselves. As for example today we would convert 1999 into Roman numerals as MCMXCIX whereas in ancient Rome it probably was simply IMM (2000-1)

Because Hindu-Arabic numerals contains a zero symbol which makes arithmetic a lot easier to calculate whereas Roman numerals have no zero symbol thus making arithmetic more difficult to calculate.

The letter C in Roman numerals is 100.The letter C in Roman numerals is 100.The letter C in Roman numerals is 100.The letter C in Roman numerals is 100.The letter C in Roman numerals is 100.The letter C in Roman numerals is 100.The letter C in Roman numerals is 100.The letter C in Roman numerals is 100.The letter C in Roman numerals is 100.