| 1) | 850 − 347 = | 2) | 45 − 208 = | 3) | -743 + 115 = |
| 4) | -203 + 970 = | 5) | -2 + 60 = | 6) | -586 − 582 = |
| 1) | 850 − 347 = 503 | 2) | 45 − 208 = -163 | 3) | -743 + 115 = -628 |
| 4) | -203 + 970 = 767 | 5) | -2 + 60 = 58 | 6) | -586 − 582 = -1168 |