7 ⋅ 2 + 2 ○ 8 ⋅ 2 9 ⋅ 2 – 2 ○ 10 ⋅ 2

1. 7 ⋅ 2 + 2

   Сначала умножаем: 7 ⋅ 2 = 14

   Затем складываем: 14 + 2 = 16

2. Сравниваем с 8 ⋅ 2 = 16

   16 = 16

3. 9 ⋅ 2 – 2

   Сначала умножаем: 9 ⋅ 2 = 18

   Затем вычитаем: 18 – 2 = 16

4. Сравниваем с 10 ⋅ 2 = 20

   16 < 20

Ответ: 7 ⋅ 2 + 2 = 8 ⋅ 2, 9 ⋅ 2 – 2 < 10 ⋅ 2