Roman Number System and conversion of European into Roman System

Number system is the mathematical way of representing the things, items by symbols.

For e.g.  In European Number system we represent the numbers of apple in following way

   

Roman numeral is the earliest number system that is still in use. 

                                                                                                                                  

European Number	Roman number
1	I
2	II
3	III
4	IV
5	V
6	VI
7	VII
8	VIII
9	IX
10	X

If we want to represent ten apples in roman number than we use X.In following table we will get more idea about Roman numbers

                             

 

NOTE:-  The plus sign using in roman is only indicative it does not means addition I am using it here to represent joining of adjoining roman numbers

                      10 + 1 = 11

                       X + I = XI

Now  14

                 10 + 4 = 14

                  X + IV = XIV

Now 84

                  80 + 4 = 84

                  50 + 10 + 10 + 10 + 4

                  L   + X + X + X + IV

                    LXXXIV

10+1=11	X+I=XI
10+2=12	X+II=XII
10+3=13	X+III=XIII
10+4=14	X+IV=XIV
10+5=15	X+V=XV
10+6=16	X+VI=XVI
10+7=17	X+VII=XVII
10+8=18	X+VIII=XVIII
10+9=19	X+IX  = XIX
10+10=20	X+X  = XX

How to convert European number into Roman Number system.

1.    Cram the  basic numbers in Roman system like 1 = I, 5= V, 10= X

I=1

V=5

X=10

L=50

C=100

D=500

M=1000

2.    Get the base and add the number

For .e.g. 1045

1000+ 40 +5

             M + XL+ V

           MXLV

                            

Convert the following number into Roman numbers

1. 15
2. 26
3. 41
4. 58
5. 89
6. 99
7. 128
8. 247
9. 505
10. 850
11. 1001
12. 1100
13. 1505
14. 2058
15. 2574
16. 3005
17. 3102
18. 3560
19. 4500
20. 999999