Краткое пояснение: Необходимо выполнить умножение и деление, используя различные приёмы.
Выполним вычисления:
- 2 ⋅ 9 = 18
- 2 ⋅ 5 = 10
- 2 ⋅ 6 = 12
- 70 : 7 ⋅ 5 = 10 ⋅ 5 = 50
- 7 ⋅ 2 = 14
- 3 ⋅ 2 = 6
- 2 ⋅ 8 = 16
- 70 : 10 ⋅ 2 = 7 ⋅ 2 = 14
Ответ: 2 ⋅ 9 = 18; 2 ⋅ 5 = 10; 2 ⋅ 6 = 12; 70 : 7 ⋅ 5 = 50; 7 ⋅ 2 = 14; 3 ⋅ 2 = 6; 2 ⋅ 8 = 16; 70 : 10 ⋅ 2 = 14