Odd numbers are whole numbers that cannot be divided evenly by 2.
Another way to say it:
When you divide an odd number by 2, you always get a remainder of 1.
Examples of odd numbers
1, 3, 5, 7, 9, 11, 13, 15, 17, …
How to check if a number is odd?
- If the number ends with 1, 3, 5, 7, or 9, it is odd.
Simple explanation
Think of odd numbers as the numbers that always have one extra when you try to make pairs.
