The numbers 1980 to 2020 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 1980 | = | MCMLXXX | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 |
| 1981 | = | MCMLXXXI | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 1 |
| 1982 | = | MCMLXXXII | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 1 + 1 |
| 1983 | = | MCMLXXXIII | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 1 + 1 + 1 |
| 1984 | = | MCMLXXXIV | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 5 − 1 |
| 1985 | = | MCMLXXXV | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 5 |
| 1986 | = | MCMLXXXVI | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 5 + 1 |
| 1987 | = | MCMLXXXVII | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 |
| 1988 | = | MCMLXXXVIII | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 + 1 |
| 1989 | = | MCMLXXXIX | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 10 − 1 |
| 1990 | = | MCMXC | = | 1000 + 1000 − 100 + 100 − 10 |
| 1991 | = | MCMXCI | = | 1000 + 1000 − 100 + 100 − 10 + 1 |
| 1992 | = | MCMXCII | = | 1000 + 1000 − 100 + 100 − 10 + 1 + 1 |
| 1993 | = | MCMXCIII | = | 1000 + 1000 − 100 + 100 − 10 + 1 + 1 + 1 |
| 1994 | = | MCMXCIV | = | 1000 + 1000 − 100 + 100 − 10 + 5 − 1 |
| 1995 | = | MCMXCV | = | 1000 + 1000 − 100 + 100 − 10 + 5 |
| 1996 | = | MCMXCVI | = | 1000 + 1000 − 100 + 100 − 10 + 5 + 1 |
| 1997 | = | MCMXCVII | = | 1000 + 1000 − 100 + 100 − 10 + 5 + 1 + 1 |
| 1998 | = | MCMXCVIII | = | 1000 + 1000 − 100 + 100 − 10 + 5 + 1 + 1 + 1 |
| 1999 | = | MCMXCIX | = | 1000 + 1000 − 100 + 100 − 10 + 10 − 1 |
| 2000 | = | MM | = | 1000 + 1000 |
| 2001 | = | MMI | = | 1000 + 1000 + 1 |
| 2002 | = | MMII | = | 1000 + 1000 + 1 + 1 |
| 2003 | = | MMIII | = | 1000 + 1000 + 1 + 1 + 1 |
| 2004 | = | MMIV | = | 1000 + 1000 + 5 − 1 |
| 2005 | = | MMV | = | 1000 + 1000 + 5 |
| 2006 | = | MMVI | = | 1000 + 1000 + 5 + 1 |
| 2007 | = | MMVII | = | 1000 + 1000 + 5 + 1 + 1 |
| 2008 | = | MMVIII | = | 1000 + 1000 + 5 + 1 + 1 + 1 |
| 2009 | = | MMIX | = | 1000 + 1000 + 10 − 1 |
| 2010 | = | MMX | = | 1000 + 1000 + 10 |
| 2011 | = | MMXI | = | 1000 + 1000 + 10 + 1 |
| 2012 | = | MMXII | = | 1000 + 1000 + 10 + 1 + 1 |
| 2013 | = | MMXIII | = | 1000 + 1000 + 10 + 1 + 1 + 1 |
| 2014 | = | MMXIV | = | 1000 + 1000 + 10 + 5 − 1 |
| 2015 | = | MMXV | = | 1000 + 1000 + 10 + 5 |
| 2016 | = | MMXVI | = | 1000 + 1000 + 10 + 5 + 1 |
| 2017 | = | MMXVII | = | 1000 + 1000 + 10 + 5 + 1 + 1 |
| 2018 | = | MMXVIII | = | 1000 + 1000 + 10 + 5 + 1 + 1 + 1 |
| 2019 | = | MMXIX | = | 1000 + 1000 + 10 + 10 − 1 |
| 2020 | = | MMXX | = | 1000 + 1000 + 10 + 10 |