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Roman Numerals & Measures Part 1

ROMAN NUMERALS ORDINAL NUMBER

NUMBER	NAME	ROMAN	ORDINAL NUMBERS
ONE	1	I	FIRST
TWO	2	II	SECOND
THREE	3	III	THIRD
FOUR	4	IV	FOURTH
FIVE	5	V	FIFTH
SIX	6	VI	SIXTH
SEVEN	7	VII	SEVENTH
EIGHT	8	VIII	EIGHTH
NINE	9	IX	NINTH
TEN	10	X	TENTH
ELEVEN	11	XI	ELEVENTH
TWELVE	12	XII	TWELTH
THIRTEEN	13	XIII	THIRTEENTH
FOURTEEN	14	XIV	FOURTEENTH
FIFTEEN	15	XV	FIFTEENTH
SIXTEEN	16	XVI	SIXTEETH
SEVENTEEN	17	XVII	SEVENTEENTH
EIGHTTEEN	18	XVIII	EIGHTEENTH
NINETEEN	19	XIX	NINETEENTH
TWENTY	20	XX	TWENTIETH
THIRTY	30	XXX	THIRTIETH
FORTY	40	XL	FOURTIETH
FIFTY	50	L	FIFTIETH
SIXTY	60	LX	SIXTIETH
SEVENTY	70	LXX	SEVENTIETH
EIGHTY	80	LXXX	EIGHTIETH
NINETY	90	XC	NINETIETH
HUNDRED	100	C	HUNDREDTH
TWO HUNDRED	200	CC	TWO HUNDREDTH
THREE HUNDRED	300	CCC	THREE HUNDREDTH
FOUR HUNDRED	400	CD	FOUR HUNDREDTH
FIVE HUNDRED	500	D	FIVE HUNDREDTH
SIX HUNDRED	600	DC	SIX HUNDREDTH
SEVEN HUNDRED	700	DCC	SEVEN HUNDREDTH
EIGHT HUNDRED	800	DCCC	EIGHT HUNDREDTH
NINE HUNDRED	900	CM	NINE HUNDREDTH
ONE THOUSAND	1000	M	ONE THOUSANDTHS
TWO THOUSAND	2000	MM	TWO THOUSANDTHS
THREE THOUSAND	3000	MMM	THREE THOUSANDTHS

Note:- If a bar(-) is placed above the Roman numeral its value increases by 1000 times

* Rules of Roman numbers system

1. We can use one sign in one numbers at only two or three times

   Example:

   1. II = 2
   2. III = 3
   3. XX = 20
   4. XXX = 30
   5. CC = 200
   6. CCC = 300
   7. MM = 2000
   8. MMM = 3000
2. If we use smaller sign before bigger sign then we get the Subtraction of that two number

   Example:

   1. IV = 4
   2. CM = 900
   3. IX = 9
   4. CMM = 1900
   5. XL = 40
   6. XIX = 19
3. Every sign can de subtracted only From two bigger sign from that sing

   Example:

   1. X can be subtracted from L & C.
   2. C can be subtracted from D & M
4. If we use smaller sign after bigger sign then that both sign gets added

   Example:

   1. VI = 6
   2. XV = 15
   3. CX = 110
   4. DC = 600
5. We can’t write L & D sign at the left side of bigger sign than that number
6. If we use bar on the sign than their value becomes 1000 times multiple of its original value

   Example:

   1. V̅ = 5000
   2. C̅ = 1,00,000

The metric system

MR. NEHETE ARVIND
B.Sc. B.ed
Sandesh Vidyalaya, Suryanagar, Vikhroli(w), Mumbai-400083