Question

Раставь скобки в выражении 48:4+8•7-5 так, чтобы его значение была ровно числу 1) 28 2) 23. 3) 135. 4) 8 5) 10

Answer 1

1) 48 : 4 + 8 • (7 - 5)

2) 48 : (4 + 8) • 7 - 5

3) (48 : 4 + 8) • 7 - 5

4) 48 : (4 + 8) • (7 - 5)

5) 48 : 4 + 8 • 7 - 5

Answer 2

To determine the correct placement of parentheses in the expression 48 ÷ 4 + 8 × 7 - 5 to obtain the specified values, let's evaluate the expression for each option:

1. To get 28: 48 ÷ (4 + 8) × 7 - 5 = 28

2. To get 23: (48 ÷ 4) + (8 × 7) - 5 = 23

3. To get 135: 48 ÷ (4 + 8 × 7) - 5 = 135

4. To get 8: 48 ÷ (4 + 8 × 7 - 5) = 8

5. To get 10: 48 ÷ (4 + 8 × 7 - 5) = 10

So, the correct answers are:

1. 28
2. 23
3. 135
4. 8
5. 10