7,13,5,4怎么才能得24
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1:(7 × 13 + 5) ÷ 4
2:((7 × 13) + 5) ÷ 4
3:(7 - 4) × (13 - 5)
4:(13 × 7 + 5) ÷ 4
5:((13 × 7) + 5) ÷ 4
6:(13 - 5) × (7 - 4)
7:(5 + 7 × 13) ÷ 4
8:(5 + (7 × 13)) ÷ 4
9:(5 + 13 × 7) ÷ 4
10:(5 + (13 × 7)) ÷ 4
11:(5 - 13) × (4 - 7)
12:(4 - 7) × (5 - 13)
2:((7 × 13) + 5) ÷ 4
3:(7 - 4) × (13 - 5)
4:(13 × 7 + 5) ÷ 4
5:((13 × 7) + 5) ÷ 4
6:(13 - 5) × (7 - 4)
7:(5 + 7 × 13) ÷ 4
8:(5 + (7 × 13)) ÷ 4
9:(5 + 13 × 7) ÷ 4
10:(5 + (13 × 7)) ÷ 4
11:(5 - 13) × (4 - 7)
12:(4 - 7) × (5 - 13)
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