This document defines even and odd numbers. Even numbers can be divided evenly by 2 and have last digits of 0, 2, 4, 6, or 8. Odd numbers cannot be divided evenly by 2 and have last digits of 1, 3, 5, 7, or 9. The document then asks which of 33 or 20 is odd (33 is odd) and which of 34,565 or 62,846 is even (34,565 is even).