1. 2 - 8 - 9 = 23 -15 21 36
2. 7 - 7 - 0 = 0 17 32 29
3. 2 + 1 - 7 = 27 16 -4 35
4. 3 + 2 + 8 = 16 23 21 13
5. 2 - 2 + 7 = 12 29 7 18
6. 9 + 10 + 4 = 30 16 23 27
7. 10 - 10 + 7 = 35 22 7 30
8. 9 - 9 + 0 = 20 26 7 0
9. 8 + 8 + 2 = 34 19 18 11
10. 10 + 3 + 3 = 13 35 10 16