Номер 1028
Заповни в зошиті таблицю:
– 8,37 + (–9,8) = –18,17;
| –13 + (–1 | 1 | ) = – (13 + 1 | 1 | ) = –14 | 1 | ; |
| 2 | 2 | 2 |
| – | 2 | + (– | 3 | ) = –( | 4 | + | 3 | ) = – | 7 | ; |
| 5 | 10 | 10 | 10 | 10 |
| – | 11 | + (– | 5 | ) = –( | 11 | + | 5 | ) = – | 16 | = – | 4 | = –1 | 1 | ; |
| 12 | 12 | 12 | 12 | 12 | 3 | 3 |
| – | 7 | + (– | 11 | ) = –( | 35 | + | 33 | ) = – | 68 | = –1 | 23 | . |
| 9 | 15 | 45 | 45 | 45 | 45 |