Answer:
The answer to this problem is 7892 and I would break down the problem one by one to get it. Also by working right to left since this is a addition problem.
Explanation:
How would I picture this in my mind?
This is how I would:
4290
+3602
------------
Now, we know 2+0=2 which results in the equation looking like this:
4290
+3602
------------
2
But we still have the rest to solve so we would repeat this process.
9+0=9. Now it would look like this:
4290
+3602
------------
92
6+2=8
4290
+3602
------------
892
4+3=7
4290
+3602
------------
7892
That is how I would solve this problem in my head. I hope this helps and if your still confused ask a question!