1: (3 - 7) × (5 - 11)
2: (5 - 11) × (3 - 7)
3: (11 - 5) × (7 - 3)
4: (11 × 7 - 5) ÷ 3
5: ((11 × 7) - 5) ÷ 3
6: (7 - 3) × (11 - 5)
7: (7 × 11 - 5) ÷ 3
8: ((7 × 11) - 5) ÷ 3
我把他们换为正数,就是他们的绝对值,希望采纳
1: (3 - 7) × (5 - 11)
2: (5 - 11) × (3 - 7)
3: (11 - 5) × (7 - 3)
4: (11 × 7 - 5) ÷ 3
5: ((11 × 7) - 5) ÷ 3
6: (7 - 3) × (11 - 5)
7: (7 × 11 - 5) ÷ 3
8: ((7 × 11) - 5) ÷ 3
我把他们换为正数,就是他们的绝对值,希望采纳