Roman Numerals - Pin Points and Rules

Question 2

Q: What can I be subtracted from?

Question 3

A: I can be subtracted from X and V only.

Question 4

Q: Which symbols can be repeated?

Question 5

A: Only I

Answer 5

X

Question 6

Q: What can X be subtracted from?

Question 7

A: X can be subtracted from L and C only.

Question 8

Q: What can C be subtracted from?

Question 9

A: C can be subtracted from D and M only.

Question 10

Q: Can V

Answer 10

L

Question 11

A: No

Answer 11

V

Question 12

Q: How many times can a smaller symbol be subtracted from a greater symbol?

Question 13

A: A symbol of smaller value can be subtracted from a symbol of greater value just once.

Question 14

Q: What happens when a symbol is placed after a bigger symbol?

Question 15

A: Putting a symbol ‘after’ a symbol of bigger value means adding the values of the symbols.

Question 16

Q: What happens when a symbol is placed before a bigger symbol?

Question 17

A: Putting a symbol ‘before’ a symbol of bigger value means subtracting the value of the first symbol from that of the second.

Question 18

Q: What is the maximum number of times a symbol can be repeated?

Question 19

A: A symbol can be repeated a maximum of three times in a numeral.

Question 20

Q: What happens when a smaller symbol comes between two larger symbols?

Question 21

A: If a symbol of smaller value comes in between two symbols of larger values

Answer 21

then its value is always subtracted from the value of the symbol immediately following it.

Question 22

Q: What happens when a bar is placed over a Roman numeral?

Question 23

A: If a bar is placed over a Roman numeral

Answer 23

it is multiplied by 1000.