What is 16 - 10 - 2 - 3 = ?

What is 8 - 2 - 2 - 2 = ?
What is 10 - 3 - 3 - 4 = ?
What is 8 - 5 - 5 - 5 = ?
What is 7 - 7 - 7 - 7 = ?
What is 12 - 15 - 10 - 8 = ?
What is 3 - 7 - 4 - 2 = ?
What is 9 - 3 - 6 - 5 = ?
What is 11 - 9 - 6 - 6 = ?
What is 6 - 5 - 4 - 3 = ?
What is 13 - 3 - 6 - 1 = ?

1

2
0
-7
-14
-21
-10
-5
-10
3

0,3,

0,-6,