1) 9 ⋅ 3 = 2730 - 6 = 243 ⋅ 9 = 2730 - 3 = 27
Выражения, значения которых равны: 9 ⋅ 3 = 3 ⋅ 9 = 30 - 3
Ответ: 9 ⋅ 3 = 3 ⋅ 9 = 30 - 3