Question

How do you this kind of math 4+(5+6)=(4+5)+6

Answer 1

So all you do is add the numbers so 5+6=11 and 4+5=9. Then add 4+11 which is 15 and 9+6 which is 15.

Answer 2

You have to solve the parenthesis first

Explanation:

So, that would make :

4 + (5 + 6) = (4 + 5) + 6

4 + 11 = 9 + 6

15 = 15

Hope this helps :)