That would be called a Suffix. The Prefix would be Mr., Sir. etc.
Any numeral from 0 to 9 is called a digit.
A letter used in place of a numeral is called a variable.
French speaking Canadians are called Canadians. English speaking Canadians are called Canadians. Canadians are Canadians.
The person who is speaking is called a speaker or a conversationalist.
The speed of speaking is called Dynamics
French speaking people are known as francophones.
XIII is the Roman numeral for the number 13
Yes and it stands for 30
A line over a Roman numeral represents multiplication of that numeral by a thousand. For example, a line over the numeral X represents 10,000 (10 * 1000) and a line over the numeral V represents 5,000 (5 * 1000).
Dewey decimal system
A combination of numbers and operations is called a Numerical Expression.
The base 20 number system is called the vigesimal numeral system.