Answer:
37.16
Explanation:
Here's how I like to set up problems like these:
30.80
+06.36.
-------------
Then you add 0 and 6 to get 6:
30.80
+06.36
-----------
6
Then you add 8 and 3 which equals 11 but you'd need to carry the 1 over to the next row:
1
30.80
+06.36
-----------
1 6
Then you'd add the 1 you carried earlier to the 6:
1
30.80
+06.36
----------
7. 1 6
Then you'd add 3 and 0:
1
30.80
+06.36
-----------
3 7. 1 6
And that's your answer: 37.16! I hope this helps a little!