七、八、九、四张不同扑克牌上的点数经过怎样的运算才能得到二四,至少写出两种算式。急急!

2024-11-18 08:10:49
推荐回答(4个)
回答1:

1: 8 × (9 ÷ (10 - 7))
2: 8 × 9 ÷(10 - 7)
3: (8 × 9) ÷ (10 - 7)
4: (8 ÷ (10 - 7)) × 9
5: 8 ÷ (10 - 7) × 9
6: 8 ÷ ((10 - 7) ÷ 9)
7: 9 × (8 ÷ (10 - 7))
8: 9 × 8 ÷(10 - 7)
9: (9 × 8) ÷ (10 - 7)
10: (9 ÷ (10 - 7)) × 8
11: 9 ÷ (10 - 7) × 8
12: 9 ÷ ((10 - 7) ÷ 8)

回答2:

﹙9×8﹚÷﹙10-7﹚
[8÷﹙10-7﹚]×9
9÷[﹙10-7﹚÷8]
8×[9÷﹙10-7﹚]

回答3:

9÷(10-7)×8=24

8×9÷(10-7)=24

回答4:

(9x8)÷(10-7)=24