| 1) | 817 + 354 = | 2) | 862 + 628 = | 3) | -724 + 350 = |
| 4) | -219 + 40 = | 5) | -563 + 659 = | 6) | -34 − 221 = |
| 1) | 817 + 354 = 1171 | 2) | 862 + 628 = 1490 | 3) | -724 + 350 = -374 |
| 4) | -219 + 40 = -179 | 5) | -563 + 659 = 96 | 6) | -34 − 221 = -255 |