<Dl> <Dd> I, II, III, IIII, V, VI, VII, VIII, VIIII, X . </Dd> </Dl> <Dd> I, II, III, IIII, V, VI, VII, VIII, VIIII, X . </Dd> <P> The numerals for 4 (IIII) and 9 (VIIII) proved problematic (among other things, they are easily confused with III and VIII), and are generally replaced with IV (one less than 5) and IX (one less than 10). This feature of Roman numerals is called subtractive notation . </P> <P> The numbers from 1 to 10 (including subtractive notation for 4 and 9) are expressed in Roman numerals as follows: </P>

What does lx stand for in roman numerals