| 1) | -3 + 5 + -21 | 2) | -1 + 7 + -17 |
| 3) | -9 - -3 - -20 | 4) | 4 - -5 - -24 |
| 5) | -11 - -3 - 10 | 6) | 9 - -1 + -15 |
| 7) | 3 - -10 - -14 | 8) | -2 - -1 + -5 |
| 9) | -12 + 8 + 23 | 10) | 4 + 9 + 20 |
| 11) | 13 + 7 + -16 | 12) | -2 + 7 + -16 |
| 13) | -10 - -10 - -8 | 14) | 8 - -1 + 7 |
| 15) | 11 + 7 + -1 | 16) | 6 + 10 + 6 |
| 17) | -4 - -8 - 3 | 18) | -8 - -9 - -23 |
| 19) | 4 - -5 - -21 | 20) | 12 - -6 - 3 |
| 21) | 7 + 6 + -1 | 22) | 10 + 3 + -5 |
| 23) | 9 - -3 - 22 | 24) | 7 + 5 + -8 |
| 25) | 6 + 4 + -20 | 26) | -9 + 7 + -6 |
| 27) | 5 - -7 - 21 | 28) | -7 + 8 + 6 |
| 29) | 11 + 2 + -11 | 30) | 6 - -7 - 9 |
| 31) | -2 - -7 - -5 | 32) | 1 - -10 - 23 |
| 33) | -10 + 9 + 8 | 34) | 1 - -1 + 5 |
| 35) | 4 + 8 + 3 | 36) | 14 - -6 - -18 |
| 37) | 1 + 4 + 13 | 38) | 9 - -1 + -15 |
| 39) | 5 - -7 - 13 | 40) | -8 - -2 - -22 |
Joke:
If a mathematician became a farmer, he would grow carrots with square roots and adopt swine and coswine with high-pot-in-use!