Math Test Prep 10/19 SETS Flashcards
1
Q
Set
A
A collection of “objects”
2
Q
Set B
A
A subset of Set A, if every element of Set B is also in Set A
3
Q
Empty Set
A
Set with no elements
4
Q
Intersection
A
What sets have in common
5
Q
Union
A
All elements of sets combined
6
Q
Natural Number
A
1,2,3,4…
7
Q
Whole Numbers
A
0,1,2,3…
8
Q
Integers
A
-2,-1,0,1,2…
9
Q
Rational Numbers
A
A/B if A and B are Integers and B isn’t equal to 0 (Repeated Decimals Included)
10
Q
Irrational Numbers
A
Numbers that aren’t rational
11
Q
Real Numbers
A
All Numbers (imaginary excluded)
12
Q
What are all type of numbers?
A
N.W.I.R.I.R
