119. Проверь, все ли равенства верны. Исправь неверные равенства, поставив скобки. 9 ⋅ 3 + 45 : 9 = 72 9 ⋅ 3 + 45 : 9 = 32 9 ⋅ 3 + 45 : 9 = 8 6 ⋅ 16 - 8 ⋅ 2 = 80 6 ⋅ 16 - 8 ⋅ 2 = 96 6 ⋅ 16 - 8 ⋅ 2 = 176

1. Проверка равенства: 9 ⋅ 3 + 45 : 9 = 72

9 ⋅ 3 + 45 : 9 = 27 + 5 = 32 ≠ 72

(9 ⋅ 3 + 45) : 9 = (27 + 45) : 9 = 72 : 9 = 8

9 ⋅ (3 + 45 : 9) = 9 ⋅ (3 + 5) = 9 ⋅ 8 = 72

Исправленное равенство: 9 ⋅ (3 + 45 : 9) = 72

2. Проверка равенства: 9 ⋅ 3 + 45 : 9 = 32

9 ⋅ 3 + 45 : 9 = 27 + 5 = 32

Равенство верно.

3. Проверка равенства: 9 ⋅ 3 + 45 : 9 = 8

9 ⋅ 3 + 45 : 9 = 27 + 5 = 32 ≠ 8

(9 ⋅ 3 + 45) : 9 = (27 + 45) : 9 = 72 : 9 = 8

Исправленное равенство: (9 ⋅ 3 + 45) : 9 = 8

4. Проверка равенства: 6 ⋅ 16 - 8 ⋅ 2 = 80

6 ⋅ 16 - 8 ⋅ 2 = 96 - 16 = 80

Равенство верно.

5. Проверка равенства: 6 ⋅ 16 - 8 ⋅ 2 = 96

6 ⋅ 16 - 8 ⋅ 2 = 96 - 16 = 80 ≠ 96

6 ⋅ (16 - 8) ⋅ 2 = 6 ⋅ 8 ⋅ 2 = 96

Исправленное равенство: 6 ⋅ (16 - 8) ⋅ 2 = 96

6. Проверка равенства: 6 ⋅ 16 - 8 ⋅ 2 = 176

6 ⋅ 16 - 8 ⋅ 2 = 96 - 16 = 80 ≠ 176

6 ⋅ (16 - 8 ⋅ 2) = 6 ⋅ (16 - 16) = 0

(6 ⋅ 16 - 8) ⋅ 2 = (96 - 8) ⋅ 2 = 88 ⋅ 2 = 176

Исправленное равенство: (6 ⋅ 16 - 8) ⋅ 2 = 176