These are odd numbers and if one adds 30 after each. the pattern continues in the odd numbers, that is, 31-33-35-37-39, etc.
Subtract the known figure from the known answer to get the missing figure. 110-80=30.
28 30 32
30 + 30 + 30 + 30 + 30 + 30 = 180
4!
-30 plus 60 = 30
90
The sum of these numbers is 563.
50 + 40 + 40 + 40 + 30 + 30 + 20 + 10 = 260
194
132
10 + 10 + 10
The sum of 30 plus 10 plus 5 plus 5 is 50.