Page:U.S. Government Printing Office Style Manual 2008.djvu/296

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Roman numerals

12.29.

A repeated letter repeats its value; a letter placed after one of greater value adds to it; a letter placed before one of greater value subtracts from it; a dashline over a letter denotes multiplied by 1,000.

Numerals

I	1	XXV	25	LXX	70	D	500
II	2	XXIX	29	LXXV	75	DC	600
III	3	XXX	30	LXXIX	79	DCC	700
IV	4	XXXV	35	LXXX	80	DCCC	800
V	5	XXXIX	39	LXXXV	85	CM	900
VI	6	XL	40	LXXXIX	89	M	1,000
VII	7	XLV	45	XC	90	MD	1,500
VIII	8	XLLX	49	XCV	95	MM	2,000
IX	9	L	50	C	99	MMM	3,000
X	10	LV	55	C	100	MMMM  or MV	4,000
XV	15	LIX	59	CL	150
XIX	19	LX	60	CC	200	V	5,000
XX	20	LXV	65	CCC	300	M	1,000,000
		LXLX	69	CD	400

 

Dates

MDC	1600	MCMXX	1920	MCMLXX	1970
MDCC	1700	MCMXXX	1930	MCMLXXX	1980
MDCCC	1800	MCMXL	1940	MCMXC	1990
MCMorMDCCCC	1900	MCML	1950	MM	2000
MCMX	1910	MCMLX	1960	MMX	2010