1) | -89 − 5 = | 2) | 81 + 23 = | 3) | -91 − 3 = |
4) | -15 − 57 = | 5) | -94 + 64 = | 6) | -20 + 62 = |
1) | -89 − 5 = -94 | 2) | 81 + 23 = 104 | 3) | -91 − 3 = -94 |
4) | -15 − 57 = -72 | 5) | -94 + 64 = -30 | 6) | -20 + 62 = 42 |