用3.4.4.7.怎样组成24点?

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用3.4.4.7.怎样组成24点?用3.4.4.7.怎样组成24点?用3.4.4.7.怎样组成24点?1:(4÷4+7)×32:((4÷4)+7)×33:4×(3-4+7)4:4×((3-4)+7)5

用3.4.4.7.怎样组成24点?
用3.4.4.7.怎样组成24点?

用3.4.4.7.怎样组成24点?
1:(4 ÷ 4 + 7) × 3
2:((4 ÷ 4) + 7) × 3
3:4 × (3 - 4 + 7)
4:4 × ((3 - 4) + 7)
5:4 × (3 - (4 - 7))
6:4 × (3 + 7 - 4)
7:4 × ((3 + 7) - 4)
8:4 × (3 + (7 - 4))
9:4 × (7 - 4 + 3)
10:4 × ((7 - 4) + 3)
11:4 × (7 - (4 - 3))
12:4 × (7 + 3 - 4)
13:4 × ((7 + 3) - 4)
14:4 × (7 + (3 - 4))
15:3 × (4 ÷ 4 + 7)
16:3 × ((4 ÷ 4) + 7)
17:(3 - 4 + 7) × 4
18:((3 - 4) + 7) × 4
19:(3 - (4 - 7)) × 4
20:(3 + 7 - 4) × 4
21:((3 + 7) - 4) × 4
22:(3 + (7 - 4)) × 4
23:3 × (7 + 4 ÷ 4)
24:3 × (7 + (4 ÷ 4))
25:(7 + 4 ÷ 4) × 3
26:(7 + (4 ÷ 4)) × 3
27:(7 - 4 + 3) × 4
28:((7 - 4) + 3) × 4
29:(7 - (4 - 3)) × 4
30:(7 + 3 - 4) × 4
31:((7 + 3) - 4) × 4
32:(7 + (3 - 4)) × 4