English-speakers also tend to have a strange habit of counting between 1,000 and approximately 2,500 in hundreds, but distinguishing between money and everything else. The cardinal numbers one, two, three become the ordinal numbers first , second and third . The Earth is the third planet from the Sun. First, second, third, fourth, etc. The numbers first - tenth are normally written in full in a text and numbers greater than tenth written in figures.
Roman numerals can be cardinal or ordinal according to their position.
In modern English, particularly Amer. English, there is a tendency to replace Roman numbers with Arabic, except in the cases of Pontiffs, Sovereigns and American families.