Răspuns:
Explicație pas cu pas:
a.
| 1 - 5 | × ( | - 12 - 13 | - | - 106 + 86 | )
| - 4 | × ( | - 25 | - | - 20 | )
4 × ( 25 - 20 )
4 × 5 = 20
b.
( | - 5 - 12 - 24 | + | 7 - 16 | ) × | - 4 |
( | - 17 - 24 | + | - 9 | ) × 4
( | - 41 | + 9 ) × 4
( 41 + 9 ) × 4
50 × 4 = 200
c.
( | 22 - ( - 45 ) | - | - 124 + 107 | ) × | - 1 - 1 |
( | 22 + 45 | - | - 17 | ) × | - 2 |
( | 67 | - 17 ) × 2
( 67 - 17 ) × 2
50 × 2 = 100
d.
| - 15 - 16 - 9 | × ( | - ( - 45 ) | + | - 9 - 6 | )
| - 31 - 9 | × ( | 45 | + | - 15 | )
| - 40 | × ( 45 + 15 )
40 × 60 = 2400.