Real Number System Classifications

What is a Natural Number?

• Includes all numbers

• Includes numbers such as π, √2, e, 1.6666...

• Most basic set of numbers (1, 2, 3....)

  ℕ

• Is not a Number

What is a Whole Number?

• All Natural Numbers and Zero

• Numbers such as -1, -6.5, e

• The alphabet

• Includes all numbers

What is a Integer?

• What is an Integer?

• Also Known as Counting Numbers

• Triple Scoop Ice Cream Cone

• Whole Numbers and Negative Numbers

  (... -2, -1, 0, 1, 2...)

  ℤ

What is a Rational Number?

• What is an Integer?

• Integers, decimals, and fractions

  ℚ

• Includes numbers such as π, √2, e, 1.68549...

• All Natural Numbers and Zero

What is a Irrational Number?

• Is not a Number

• All Rational Numbers

• Cannot be expressed as a fraction

  (π, √2, e, Phi)

  ℙ

• Number such as

  -1, 3, 5, 0, 3.3, 1/2

What is a Real Number?

• Music

• All Rational and Irrational Numbers

• Whole Numbers and Negative Numbers

• Number such as

  -1, 3, 5, 0, 3.3, 1/2

What Classification Does 3/4 Fit Into? (Multiple Answers)

• Integer

• Natural and Irrational Numbers

• Rational Number

• Real Number

Which Number Classifications Does -1 Fit Into? (Multiple Answers)

• Natural Number

• Irrational Number

• Integer

• Rational Number

Which Number Classifications Does 8 Fit Into? (Multiple Answers)

• Natural Number

• Real Number

• Rational Number

• Integer

Which Number Classifications Does π Fit Into? (Multiple Answers)

• In a Dish

• Real Number

• Irrational Number

• Natural Number