How to convert roman numerals to normal numbers and vice versa ?

Question

... the procedure ... ?

Answer 1

I = 1
V = 5
X = 10
C = 100
D= 500
M = 1000

MMMCDXIV

So break it down

MMM = 3*1000

If a small number precedes a larger one then u take the smaller from the larger

CD = 500-100 = 400

X= 10

IV = 4

So

3414

Answer 2

You could create an array of all possible roman numerals and then reference the array in either dirrection. 1 I 2 II 3 III ETC.. This may sound tedious, but in excel you can TYpe the number 1 in A1, put the formula =roman(A1) in A2, then click and drag A1 down to 9999, and do the same for A2. You'll then have all your raw data. This is a brute force way to avoid re-inventing the wheel of conversion.

Answer 3

I - 1
II - 2
III - 3
IV - 4
V -5
VI - 6
VII - 7
VIII - 8
IX - 9
X - 10
XX-20
XXX-30
XL - 40
L -50
LX - 60
XC - 90

X , I can only be used 3 times as maximum.
Oftenly, if a number is less than 5, like 4.we use the character I before V. its like 5-1 =4. Same way with 9,14,19,24,29,34,39.
This is also applied for 40, 90.with a roman numeral of XL and XC respectively

Answer 4

when you look for roman # I = 1
v = 5
X = 10
now to write 7 for ex 7 = 5 + 1 + 1
so X +I + I
than you write XII
13 = 10 +5 -1-1
so X+V-I-I so you write IIXV becouces left numbercal mean sup. ( to sup you bet the nuber on theleft to add write the number on the right ) always start with highest nmber first

Answer 5

I = 1
V= 5
X= 10

If you want 15 add X+V=XV