Roman numerals reading rules, online lesson: learn how to write Hindu-Arabic numbers using Roman numerals

Introduction

Although within the Roman Empire itself it wasn't enforced a set of stricter rules that would have lead to the standardization of Roman numerals writing, in the last hundred years some rules were applied to eliminate further confusion.

We concluded that there is a set of four rules to be remembered about when writing numbers with Roman numerals. Read them below, in order.