1. RAYAT SHIKSHAN SANSTHA SATARA’S
MAHATMA GANDHI VIDYALAYA & KILACHAND JUNIOR COLLEGE NIRA TAL-PURANDAR DIST-PUNE

2. PRESENTED BY ,
Mr.ZUNJAR A.R.

3. UNIT NAME- 13.ROMAN NUMERALS
STANDARD 5th SUB-MATHS
UNIT NAME ROMAN NUMERALS

4. DEVANAGARI NUMBERS

5. INTERNATIONAL NUMBERS

6. GUJARATI NUMBERS

7. KANNADA NUMBERS

8. ROMAN NUMARELS
Many years ago in Europe, the signs, I,II,III,IV,V,X were used as numerals.They are called ROMAN NUMERALS.

9. VALUES OF ROMAN NUMERALS
ROMAN NUMERALS- I V X L C D M VALUE

10. RULE-1
IF I or X is written one after the other twice or thrice,we get the number by adding them Ex. 1) II=1+1=2 2) XX=10+10=20

11. RULE-2
If a numeral is written to the right of a bigger numeral, then its value is added to the number on the left Ex. 1) VIII=5+3=8 2)XXV= =25

12. RULE-3
If the numeral I is written to the left of V or X , the value of I is subtracted from the bigger number. I can be written to the left of bigger numeral only once Ex. IV=5-1=4 IX=10-1=9

13. RULE-4
TO write numbers greater than 10, first the groups of tens are written using X followed by the proper numerals for the units Ex.21= =XXI 24= =XXIV

14. THE END
THANK YOU.