Number Sets Flashcards
“Higher” or other term for Counting Numbers
Natural Numbers
-2, -1, 0, 1, 2 — Are examples of which Number Sets?
Integers
0, 1, 2, 3, 4,… — Are examples of which Number Sets?
Whole Numbers
1, 2, 3, 4,… — Are examples of which Number Sets?
Counting/Natural Numbers
Decimals, Pi, 1.414,… — Are examples of which Number Sets?
Irrational Numbers
Fractions, 2/3, 4/9,… — Are examples of which Number Sets?
Rational Numbers
Is 0 (Zero) a Positive or a Negative Number?
Neither
Square root of -1 is?
- i = √-1
- Imaginary Number
What are Negative Numbers with no Square Root called?
Imaginary Numbers
What is an Imaginary Number?
A number expressed from the Square root of Negative Numbers
What is another term for Natural Numbers?
Counting Numbers
What Number Sets are Positive, Negative, Fractions, and Decimal Numbers called as a Whole?
Real Numbers
What Number Sets are Positive, Negative, Fractions, Decimal and Imaginary Numbers called as a Whole?
Complex Numbers
What numbers are included in the Complex Numbers
- Positive
ex. 4 - Negative
ex. -8 - Integers
ex. -1, 0, 1 - Whole/Zero
ex. 0, 1, 2 - Rational/Fractions
ex. 1/5 - Irrational/Decimals
ex. 6.5 - Imaginary Numbers
ex. 2i, i = √-1
What numbers are included in the Counting Numbers?
One and so on
ex. 1, 2, 3, 4,…
What numbers are included in the Integers?
Negative, Zero and Positive Numbers
ex. …, -2, -1, 0, 1, 2,…
What numbers are included in the Irrational Numbers?
Decimals
ex. 3.1415926535, 6.87,…
What numbers are included in the Rational Numbers?
Fractions
ex. 3/6, 7/5,…
What numbers are included in the Real Numbers?
- Positive
ex. 7 - Negative
ex. -3 - Integers
ex. -1, 0, 1 - Whole/Zero
ex. 0, 1, 2 - Rational/Fractions
ex. 3/7 - Irrational/Decimals
ex. 2.5
What numbers are included in the Whole Numbers?
Zero and so on
ex. 0, 1, 2, 3, 4,…
