3.5.1 Natural Numbers.

Question 1

Define a natural number.

Answer 1

A whole number.

Question 2

How do you describe a set of natural numbers?

Answer 2

The letter N.
N = {0,1,2,3…}

• This means that the set of natural numbers starts at 0 and continues to infinity.
• Infinity because the elements of the set ends in ‘…’