Номер 800
Виконайте дії:
| 1) | 7 | + | 5 | = | 7 + 5 | = | 12 | = | 2 | ; |
| 18 | 18 | 18 | 18 | 3 |
| 2) | 11 | + | 8 | = | 11 + 8 | = | 19 | ; |
| 24 | 24 | 24 | 24 |
| 3) | 23 | – | 14 | = | 23 – 14 | = | 9 | ; |
| 47 | 47 | 47 | 47 |
| 4) | 31 | – | 16 | = | 31 – 16 | = | 15 | ; |
| 58 | 58 | 58 | 58 |
| 5) | 3 | + | 6 | – | 8 | = | 3 + 6 – 8 | = | 1 | ; |
| 29 | 29 | 29 | 29 | 29 |
| 6) | 29 | – | 14 | – | 9 | = | 29 – 14 – 9 | = | 6 | = | 3 | . |
| 64 | 64 | 64 | 64 | 64 | 32 |