What is the general rule of Roman numerals?

Roman numerals are read left to right, adding values together. However, if a smaller numeral is placed before a larger numeral, the smaller value is subtracted from the larger one (e.g., IV = 5 - 1 = 4).

What are the core Roman numeral symbols?

The seven core symbols are: I (1), V (5), X (10), L (50), C (100), D (500), and M (1000).

How high do Roman numerals go in this game?

In this game, numbers scale up to 3999 (MMMCMXCIX) which is the standard ceiling for traditional Roman numerals.

Roman Numerals · 日本語

Train conversion and recall between Arabic numbers and Roman numerals

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