Roman Numerals

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Summary

Memorize Roman Numerals.

Simple

Number (memorize) Roman (memorize)
1I
2II
3III
4IV
5V
6VI

Larger numbers

Number (memorize) Roman (memorize)
9IX
10X
20XX
21XXI
50L
100C
500D
1000M

Combinations

Number (memorize) Roman (memorize)
70LXX
90XC
900CM
99XCIX (or IC)
24XXIV
105CV
555DLV