Name two types of number.
Natural numbers are the numbers we use for counting: 1, 2, 3, 4, etc. Whole numbers are the same as natural numbers, but also include 0: 0, 1, 2, 3, etc. Integers are the combination of whole numbers and their opposites: -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, etc.
Different Types of Numbers
Integer: Whole numbers (positive, negative, and zero) Rational Numbers: Any number that can be expressed as a fraction of two integers Irrational Numbers: Numbers that cannot be expressed as a fraction of two integers, such as pi or the square root of 2
What is your favorite type of number?
- Prime numbers
- Composite numbers
- Real numbers
- Imaginary numbers
The number zero was invented almost 2000 years ago by the ancient Indians who used it to solve mathematical equations. The number pi (π) has an infinite number of digits that never repeat or end. There is an abstract mathematical number called the 'Surreal Number' that contains all other numbers, even imaginary ones!
Did you know?
What are the different types of numbers? How are they categorized?
What are the advantages and disadvantages of using each type of number?
What is the difference between rational and irrational numbers, and can you give an example of each?
What type of number do you think is the most useful and why?
What is one real-world application of each type of number?
Create a chart with four columns labeled Natural, Whole, Integer, and Rational. Draw examples and explanations for each type of number.