| 1) | -874 + 392 = | 2) | -57 − 451 = | 3) | 48 + 994 = |
| 4) | -852 + 607 = | 5) | -522 + 214 = | 6) | -199 + 227 = |
| 1) | -874 + 392 = -482 | 2) | -57 − 451 = -508 | 3) | 48 + 994 = 1042 |
| 4) | -852 + 607 = -245 | 5) | -522 + 214 = -308 | 6) | -199 + 227 = 28 |