| 1) | -7 + 6 + -8 | 2) | -3 + 8 + 9 |
| 3) | -3 + 10 + -17 | 4) | -10 + 1 - -13 |
| 5) | 13 - -6 - -11 | 6) | 9 + 9 + -6 |
| 7) | -3 - -7 - -7 | 8) | 5 + 2 + 6 |
| 9) | 14 - -6 - 3 | 10) | 6 - -6 - -14 |
| 11) | -3 - -8 - -3 | 12) | -3 - -3 - -6 |
| 13) | -6 - -5 - 9 | 14) | 5 + 6 + 0 |
| 15) | -4 - -9 - 4 | 16) | -4 - -1 + -5 |
| 17) | 5 - -7 - 5 | 18) | 14 - -3 - -10 |
| 19) | -5 - -9 - 11 | 20) | 8 + 7 + 18 |
| 21) | 3 + 4 + 8 | 22) | -5 + 6 + -6 |
| 23) | 8 - -3 - 4 | 24) | -9 - -5 - -9 |
| 25) | 14 - -1 + -16 | 26) | -11 + 9 + 11 |
| 27) | -12 + 8 + -24 | 28) | 5 - -2 - 23 |
| 29) | 14 + 9 + -8 | 30) | -10 + 2 + 13 |
| 31) | -5 - -3 - -6 | 32) | -11 + 3 + 6 |
| 33) | -12 + 10 + -22 | 34) | -6 + 9 + 4 |
| 35) | 7 + 5 + 17 | 36) | 10 - -1 + -12 |
| 37) | -11 + 5 + 0 | 38) | 6 + 4 + 16 |
| 39) | 12 - -9 - 23 | 40) | -12 + 5 + -14 |
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.