# CLASS-3ROMAN NUMBER

ROMAN NUMBER

This is to inform to you, in the whole world there are some of the countries which ruled over other countries, some cases two countries has created from one country based on their culture, language or so on but every time one culture has mixed to each other.

One of them most popular is Roman Numeral/Number which is used for expression of number is called Hindu-Arabic Numeral/Number.

Some Roman number symbol and their values are given below –

Roman Number                           Arabic number value

I                                             1

V                                             5

X                                            10

L                                             50

C                                            100

D                                            500

M                                           1000

There are some notable issue about Roman number are given below –

Note.1)  In the roman number system there is no ‘0’ (Zero)

Note.2)  In the Roman number system Repetition of number means addition and same number or numeral may repeat maximum 3 (three) times, not more than that.

Example - III =  1 + 1 + 1 = 3 ,   XXX= 10 + 10 + 10 = 30

Note.3)    V , L , D can’t be repeated .

Note.4)  Symbol with a smaller value if written before the symbol with a bigger/greater value, then we subtract the value of the first symbol from the value of the second symbol.

Example -    IV = 5 – 1 = 4 ,         IX = 10 – 1 = 9.

Note.5) Symbol with a smaller value if written after the symbol with a bigger/greater value, then we add the value of the first symbol with the value of the second symbol.

Example - XI = 10 + 1 = 11 , VI = 5 +1 = 6 , XIV = 10 + (5 – 1) = 10 + 4 = 14 , XV = 10 + 5 = 15 , XIII = 10 + 1 + 1 + 1 = 13

Note.6) For expressing number more than 10 (Ten), we need to split the number first in terms of tens and ones.

Example – 16 = 10 + 5 + 1 = XVI , XII = 10 + 1 + 1 = XII , 28 = 10 + 10 + 5 + 1 + 1 + 1 = XXVIII