2. Обведи и запомни состав числа 13.

The image displays two arched structures containing equations that sum to 13. The left arch shows: 13 = 9 + 4, 13 = 8 + 5, 13 = 7 + 6. The right arch shows: 13 = 4 + 9, 13 = 5 + 8, 13 = 6 + 7. The task is to trace these equations and memorize them.