Give an example of: a. an integer number that is not a natural number. b. a rational number that is not an integer number. c. a real number that is not a rational number.

To solve this question, wee need to know the definition of all of these terms. A natural number is a number that is greater than or equal to 1, and integer is a number greater than or less that or equal to 0 that doesn't have a decimal part, a real number is any number that is not imaginary, and a rational number is a number that can be written as a/b with b not equal to 0. Now we can give examples.

a) -1

b) 1.1

c) π

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