| 1) | -738 + 234 = | 2) | -265 + 904 = | 3) | -868 + 413 = |
| 4) | 712 − 368 = | 5) | -239 − 771 = | 6) | -723 + 226 = |
| 1) | -738 + 234 = -504 | 2) | -265 + 904 = 639 | 3) | -868 + 413 = -455 |
| 4) | 712 − 368 = 344 | 5) | -239 − 771 = -1010 | 6) | -723 + 226 = -497 |