| 1) | 11 + 9 + 7 | 2) | -9 + 2 + 21 |
| 3) | 10 - -3 - 10 | 4) | 4 + 4 + -23 |
| 5) | 13 - -1 + -1 | 6) | -11 + 3 + 24 |
| 7) | -3 - -8 - -24 | 8) | -8 - -7 - -21 |
| 9) | 5 + 10 + -23 | 10) | 2 + 3 + -16 |
| 11) | -5 + 10 + 9 | 12) | -4 - -8 - 16 |
| 13) | -11 - -1 + 20 | 14) | -2 - -5 - 11 |
| 15) | 8 - -9 - -6 | 16) | -5 - -3 - -11 |
| 17) | -3 + 7 + 17 | 18) | 6 - -1 + 18 |
| 19) | -12 + 6 + -2 | 20) | 6 + 7 + 13 |
| 21) | 5 - -3 - -22 | 22) | -1 + 6 + 15 |
| 23) | -4 - -8 - 8 | 24) | -3 + 1 - 9 |
| 25) | -6 + 10 + 14 | 26) | -10 + 6 + 15 |
| 27) | -4 - -7 - -17 | 28) | 1 - -3 - -1 |
| 29) | 10 + 8 + 4 | 30) | -4 - -3 - -5 |
| 31) | 7 + 4 + 18 | 32) | 1 + 6 + -18 |
| 33) | 9 + 5 + 2 | 34) | -6 - -7 - -19 |
| 35) | 2 - -10 - 0 | 36) | -7 + 1 - 17 |
| 37) | -10 - -3 - 17 | 38) | 5 - -5 - 5 |
| 39) | 12 - -9 - 10 | 40) | 12 - -7 - -17 |
Joke:
Terry shouted at his stubborn public-school-boy son: 'I pay thousands of pounds to your schoolmasters; but your classmates seem to be your mentors!'