7.8.9.10 whether the four numbers are addition, subtraction, multiplication and division, as long as the number is 24

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)

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