Roman Numerals Flashcards
Do you know your Roman numerals? Brush up using this deck.
What number does this Roman numeral represent?
I
1
What number does this Roman numeral represent?
II
2
What number does this Roman numeral represent?
III
3
What number does this Roman numeral represent?
IV
4
What number does this Roman numeral represent?
V
5
What number does this Roman numeral represent?
VI
6
What number does this Roman numeral represent?
VII
7
What number does this Roman numeral represent?
VIII
8
What number does this Roman numeral represent?
IX
9
What number does this Roman numeral represent?
X
10
What number does this Roman numeral represent?
XV
15
What number does this Roman numeral represent?
XX
20
What number does this Roman numeral represent?
XXX
30
What number does this Roman numeral represent?
XL
40
What number does this Roman numeral represent?
L
50
What number does this Roman numeral represent?
XC
90
What number does this Roman numeral represent?
C
100
What number does this Roman numeral represent?
CX
110
What number does this Roman numeral represent?
CD
400
What number does this Roman numeral represent?
D
500
What number does this Roman numeral represent?
DC
600
What number does this Roman numeral represent?
CM
900
What number does this Roman numeral represent?
M
1,000
What number does this Roman numeral represent?
MC
1,100
How do you combine Roman numerals into a single number?
Numerals before: subtract
Numerals after: add
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!
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.
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
What number does this Roman numeral represent?
MMMCCCXXXIII
MMM CCC XXX III
3000 + 300 + 30 + 3
3333
What number does this Roman numeral represent?
MCMXCVIII
M CM XC VIII
1000 + 900 + 90 + 8
1998
What number does this Roman numeral represent?
MDCCLXXVI
M DCC LXX VI
1000 + 700 + 70 + 6
1776
What number does this Roman numeral represent?
CDLI
CD L I
400 + 50 + 1
451
What number does this Roman numeral represent?
MCDLXXXI
M CD LXXX I
1000 + 400 + 80 + 1
1481