This easy lesson discusses some important rules that always apply when adding and multiplying even and odd numbers. Studying these rules will help you check your math when you do mental calculations.
Addition Properties
•Even + Even = Even
•Even + Odd = Odd
•Odd + Odd = Even
The above properties hold true for subtraction as well.
Multiplication Properties
•Even x Even = Even
•Even x Odd = Even
•Odd x Odd = Odd
The above properties hold true for division as well.
If you ever forget these rules, just make a simple example for yourself using 1 as an odd number, and 2 as an even number.