Краткое пояснение: Выполним вычисления и составим верные равенства.
- 2 ⋅ 6 = 12
- 54 ⋅ 23 = 1242
- 46 ⋅ 30 + 46 ⋅ 2 = 1380 + 92 = 1472
- 4 = 4
- 46 ⋅ 32 = 1472
- 54 ⋅ 20 + 54 ⋅ 3 = 1080 + 162 = 1242
Составим верные равенства:
- 54 ⋅ 23 = 54 ⋅ 20 + 54 ⋅ 3 = 1242
- 46 ⋅ 30 + 46 ⋅ 2 = 46 ⋅ 32 = 1472
Ответ: 54 ⋅ 23 = 54 ⋅ 20 + 54 ⋅ 3; 46 ⋅ 30 + 46 ⋅ 2 = 46 ⋅ 32