| 1) | 731 + 221 = | 2) | 282 + 482 = | 3) | 230 + 47 = |
| 4) | 151 + 447 = | 5) | -209 + 676 = | 6) | 630 + 310 = |
| 1) | 731 + 221 = 952 | 2) | 282 + 482 = 764 | 3) | 230 + 47 = 277 |
| 4) | 151 + 447 = 598 | 5) | -209 + 676 = 467 | 6) | 630 + 310 = 940 |