Number System Flashcards
1
Q
Natural numbers
A
“Counting” numbers positive numbers
1 to infinity
2
Q
Whole numbers
A
Any positive number whole number (No fractions or decimals)
0,1,2,3….
3
Q
Integer
A
Whole number (no fractions/decimals)
YES +,-,0
-3,-1,0,2,3…
4
Q
Rational number
A
A number that can be expressed in a fraction
5, 1/3,-1/10
5
Q
Real numbers
A
Any number
pi, -3, -4/7, 5/2,198
6
Q
Complex numbers
A
Combination of real and imaginary number
3+4i, -2 - pi(I)
7
Q
Irrational Numbers
A
Real number that cannot be written in fraction
Pi (3.149265…), 9.5,
8
Q
Imaginary number
A
Square root of negative number “i”
