1. 3 - 5 = 4 29 -2 12
2. 3 + 17 = 4 20 17 3
3. 20 - 8 = 38 36 27 12
4. 18 + 15 = 33 2 36 7
5. 20 - 16 = 39 40 4 14
6. 9 - 16 = 25 37 26 -7
7. 8 - 5 = 3 29 8 17
8. 4 - 5 = 16 4 23 -1
9. 20 + 7 = 16 17 27 15
10. 9 + 16 = 10 25 36 23