Real Number System Flashcards
1
Q
Real Symbol
A
ℝ
2
Q
Real ℝ
A
Any number rational or irrational
3
Q
Irrational (I)
A
A number that is not rational
4
Q
Are ugly decimals irrational?
A
Yes
5
Q
Ugly decimals definition
A
Decimals that do not repeat or end
6
Q
Rational (Q)
A
Any number that can be written as a fraction any fraction
7
Q
Integers (Z)
A
Starts in the negative numbers.
Nice numbers that could be plotted on a timeline
8
Q
Whole (W)
A
Starts at zero
9
Q
Natural (N)
A
Counting numbers
10
Q
Irrational symbol
A
I
11
Q
Rational symbol
A
Q (Q with squiggly line)
12
Q
Integers symbol
A
Z (double bar Z)
13
Q
Whole symbol
A
W
14
Q
Natural symbol
A
N (double bar N)
15
Q
Does radical -1 belong anywhere?
A
No, not even a real number
