 |
| |||
| addition and substraction | |||
| adding and subtracting (ssn); addition and subtraction (ssn) | |||
| сложение и вычитание: 33 phrases in 3 subjects |
| Astronautics | 1 |
| Programming | 31 |
| Technology | 1 |
|
| |||
| addition and substraction | |||
| adding and subtracting (ssn); addition and subtraction (ssn) | |||
| сложение и вычитание: 33 phrases in 3 subjects |
| Astronautics | 1 |
| Programming | 31 |
| Technology | 1 |