| 1) | 9 + 1 - -11 | 2) | 7 + 7 + -19 |
| 3) | 1 - -4 - 23 | 4) | -8 - -1 + -20 |
| 5) | -3 - -2 - 10 | 6) | 1 - -4 - 12 |
| 7) | 8 - -5 - 23 | 8) | -7 - -3 - -1 |
| 9) | 14 - -7 - 17 | 10) | -12 - -7 - -12 |
| 11) | 4 - -1 + 8 | 12) | -8 + 9 + -2 |
| 13) | 10 - -4 - 19 | 14) | 11 + 9 + -1 |
| 15) | 3 - -4 - -17 | 16) | -8 + 6 + 10 |
| 17) | -6 + 8 + -23 | 18) | -1 + 4 + -16 |
| 19) | 13 - -3 - -5 | 20) | 3 + 1 - 13 |
| 21) | -5 - -6 - 15 | 22) | 5 + 8 + 5 |
| 23) | 13 + 9 + 3 | 24) | 1 - -4 - 12 |
| 25) | -3 - -2 - 24 | 26) | -4 - -7 - -20 |
| 27) | -12 - -8 - 22 | 28) | -3 - -2 - -18 |
| 29) | -3 + 1 - 21 | 30) | 3 + 8 + -18 |
| 31) | 1 + 2 + -2 | 32) | 13 + 7 + -22 |
| 33) | 2 + 2 + -11 | 34) | -6 + 7 + 9 |
| 35) | -4 + 1 - -22 | 36) | 8 - -3 - 1 |
| 37) | 5 + 6 + 7 | 38) | -9 - -1 + 11 |
| 39) | -2 - -7 - 20 | 40) | -11 + 4 + -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!'