Question

Why is ti that when you add two numbers together (5+5,6+6,3+3, etc.) you get an even sum?? I need this for my 8 year-old-brother

Answer 1

When you add the same number together, it is always going to be an even number

Think of this as:

half + half = whole

whole + whole will still = whole

whole meaning even, and half meaning odds.

hope this helps

Answer 2

Essentially, the rule goes as so: odd + odd = even, even + even = even.

Although that may not be the answer you're looking for, it is a math rule that is never debunked and essentially the premises for why you get an even sum practically always depending on the numbers.

Hope this helps!