7 9 12 12 算24点

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7 9 12 12 算24点

7 9 12 12 算24点
7 9 12 12 算24点

7 9 12 12 算24点
7,9,12,12的24点答案:
1:9 × 12 - 7 × 12
2:(9 × 12) - 7 × 12
3:9 × 12 -(7 × 12)
4:(9 × 12) - (7 × 12)
5:9 × 12 - 12 × 7
6:(9 × 12) - 12 × 7
7:9 × 12 -(12 × 7)
8:(9 × 12) - (12 × 7)
9:12 × 9 - 7 × 12
10:(12 × 9) - 7 × 12
11:12 × 9 -(7 × 12)
12:(12 × 9) - (7 × 12)
13:12 × 9 - 12 × 7
14:(12 × 9) - 12 × 7
15:12 × 9 -(12 × 7)
16:(12 × 9) - (12 × 7)