Roman Numerals Flashcards Preview

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Flashcards in Roman Numerals Deck (33):
1

I

1

2

II

2

3

III

3

4

IV

4

5

V

5

6

VI

6

7

VII

7

8

VIII

8

9

IX

9

10

X

10

11

XV

15

12

XX

20

13

XXX

30

14

XL

40

15

L

50

16

XC

90

17

C

100

18

CX

110

19

CD

400

20

D

500

21

DC

600

22

CM

900

23

M

1,000

24

MC

1,100

25

How do you combine Roman numerals into a single number?

Numerals before: subtract

Numerals after: add

26

What numerals can you add to another?

Any values smaller than the numeral being added to.

e.g. You can add I, V, X, or L to C

Do not use larger numbers to add:
you will create a subtraction!

27

Which numerals can you subtract from another?

The "One" value immediately before the value being subtracted from.

e.g. To subtract from C, you can use X.

Do not use numerals any farther away, such as "IC" for 99.

28

How do you read a complex Roman numeral?

MCDLXXV

MCDLXXV

Separate the numerals into groups of additions, subtractions, and individuals

M CD LXX V

Add each piece together (subtract if necessary)

1000 + 400 + 70 + 5

1475

29

MMMCCCXXXIII

MMM CCC XXX III

3000 + 300 + 30 + 3

3333

30

MCMXCVIII

M CM XC VIII

1000 + 900 + 90 + 8

1998

31

MDCCLXXVI

M DCC LXX VI

1000 + 700 + 70 + 6

1776

32

CDLI

CD L I

400 + 50 + 1

451

33

MCDLXXXI

M CD LXXX I

1000 + 400 + 80 + 1

1481