3 - 2 + 1 + 1 - 1 - 1 + 2 - 1 + 1 = ?

3 - 2 + 1 + 1 - 1 - 1 + 2 - 1 + 1 = 2

1. 3 - 2 = 1
2. 1 + 1 = 2
3. 2 + 1 = 3
4. 3 - 1 = 2
5. 2 - 1 = 1
6. 1 + 2 = 3
7. 3 - 1 = 2
8. 2 + 1 = 3

Ответ: 3