8
No, 1 plus 7 is not 3.
1 + 1 + 6 = 8
102
11
It is: 8+1+7 = 16
(7-3)^2 plus (7-1)^2 = 16+36
As written, that is true. (7 - 1) + 8 = 7 - (1 + 8) is not true.
5 + 1 + 4 + 22 + 7 = 39
8 + 9 + 7 + 1 + 11111 = 11136
1 + 3 + 5 + 7 + 201 = 217
1+3+5+7+9=25
7 + 2 + 6 + 1 = 16