| 1) | -10 - -6 - -17 | 2) | -5 - -4 - 24 |
| 3) | -8 + 2 + -18 | 4) | 6 + 2 + 1 |
| 5) | -5 - -4 - -13 | 6) | -7 + 6 + 13 |
| 7) | 7 - -1 + 17 | 8) | -10 + 4 + -2 |
| 9) | 13 + 3 + 2 | 10) | 3 - -7 - -1 |
| 11) | -8 - -7 - -1 | 12) | 6 - -5 - 22 |
| 13) | -7 - -10 - -7 | 14) | 11 + 7 + 6 |
| 15) | -8 - -4 - -2 | 16) | 12 + 3 + -15 |
| 17) | 5 + 6 + 17 | 18) | 13 + 2 + 19 |
| 19) | 7 + 10 + 5 | 20) | -3 - -5 - 18 |
| 21) | -1 - -2 - -7 | 22) | -12 - -5 - -6 |
| 23) | -10 - -9 - 15 | 24) | 11 - -5 - -12 |
| 25) | -5 - -6 - -9 | 26) | 12 + 7 + -12 |
| 27) | -6 + 6 + -5 | 28) | -2 + 4 + 4 |
| 29) | 14 - -4 - -20 | 30) | -1 + 8 + -24 |
| 31) | -3 + 6 + 2 | 32) | 3 - -8 - 19 |
| 33) | 10 + 1 - -17 | 34) | -2 - -8 - 16 |
| 35) | -2 + 4 + 20 | 36) | -4 + 5 + 0 |
| 37) | -9 - -4 - -11 | 38) | -1 + 6 + -7 |
| 39) | -2 - -6 - 12 | 40) | -2 - -7 - 22 |
Joke:
You are warned!; if a mathematician says your child can become a banker or plumber, he means both and would call it 'OR' rule.