| 1) | 297 + 249 = | 2) | -394 − 146 = | 3) | -463 − 762 = |
| 4) | 447 + 501 = | 5) | -562 + 106 = | 6) | -21 − 303 = |
| 1) | 297 + 249 = 546 | 2) | -394 − 146 = -540 | 3) | -463 − 762 = -1225 |
| 4) | 447 + 501 = 948 | 5) | -562 + 106 = -456 | 6) | -21 − 303 = -324 |