Number sets Flashcards
1
Q
What is the symbol for the set of natural numbers?
A
N
2
Q
What is the symbol for the set of integers?
A
Z
3
Q
What is the symbol for the set of rational numbers?
A
Q
4
Q
What is the symbol for the set of real numbers?
A
R
5
Q
What is an ordinal number?
A
A number used to tell position e.g. 1st or 2nd
6
Q
What is meant by the cardinality of a set?
A
The number of elements in the set
