Sets Flashcards
1
Q
Set
A
Collection of numbers
2
Q
Symbol used to show a number is a member of a group
A
Weird looks E
3
Q
Set is shown by
A
Curly brackets {1,2,3…}
4
Q
Standard sets
A
Natural numbers
Integers
Rational numbers
Real numbers
5
Q
Natural numbers
A
All whole numbers up from 1 {1,2,3,4…..}
Shown by double N
6
Q
Integers
A
All positive and negative whole numbers including 0
{……-3,-2,-1,0,1,2,3…..}
Shown by double Z
7
Q
Rational numbers
A
Can be written as a fraction of an integer
eg. -4, 1/3, 0.25, -1/3
Shown by double Q
8
Q
Real numbers
A
All points on the number line
eg -6, -1/2, 2^1\2, 1/12, 0.125.
Shown by double R
