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