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# Even/Odd Rules

### 4-sided flashards

The sum of an odd and even number is always: 5 + 4 = 9 which is odd 3 + 2 = 5 which is odd ODD
The sum of three even numbers will always be: 2 + 2 + 2 = 6 which is even 4 + 6 + 2 = 12 which is even EVEN
The sum of three odd numbers will always be: 1 + 1 + 1 = 3 which is odd 3 + 1 + 5 = 9 which is odd ODD
The difference of two odd numbers will always be: 9 - 7 = 2 which is even 7 - 3 = 4 which is even EVEN
The difference of two even numbers will always be: 10 - 6 = 4 which is even 8 - 4 = 4 which is even EVEN
The difference of an even and odd number will always be: 6 - 3 = 3 which is odd 10 - 5 = 5 which is odd ODD
The difference of an odd and even number will always be: 11 - 6 = 5 which is odd 9 - 6 = 3 which is odd ODD
The product of two even numbers will always be: 2 x 4 = 8 which is even 4 x 6 = 24 which is even EVEN
The product of two odd numbers will always be: 3 x 5 = 15 which is odd 5 x 7 = 35 which is odd ODD
The product of an even and odd number will always be: 2 x 3 = 6 which is even 4 x 5 = 20 which is even EVEN
The product of an odd and even number is always: 3 x 6 = 18 which is even 5 x 4 = 20 which is even EVEN
The product of two prime numbers will always be: 5 x 7 = 35 which is composite 7 x 3 = 21 which is composite COMPOSITE
The product of a prime and composite number will always be: 3 x 6 = 18 which is composite 5 x 8 = 40 which is composite COMPOSITE
The sum of two even numbers is always: 2 + 2 = 4 which is even 4 + 6 = 10 which is even EVEN
The sum of an even and odd number is always: 2 + 3 = 5 which is odd 4 + 3 = 7 which is odd ODD
Created by: PRO Teacher lit123