5 4 7 8 怎么算24点
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286: 8 ÷ 4 ×(7 + 5)
287: (8 ÷ 4) × (7 + 5)
288: 8 ÷ (4 ÷ (7 + 5))
289: 8 + 7 + 5 + 4
290: (8 + 7) + 5 + 4
291: (8 + 7 + 5) + 4
292: ((8 + 7) + 5) + 4
293: (8 + (7 + 5)) + 4
294: 8 + (7 + 5) + 4
295: 8 + (7 + 5 + 4)
296: 8 + ((7 + 5) + 4)
297: 8 + (7 + (5 + 4))
298: 8 + 7 +(5 + 4)
299: (8 + 7) + (5 + 4)
300: (8 - 7 + 5) × 4
301: ((8 - 7) + 5) × 4
302: (8 - (7 - 5)) × 4
303: (8 × (7 + 5)) ÷ 4
304: 8 × (7 + 5) ÷ 4
305: 8 × ((7 + 5) ÷ 4)
306: 8 + 7 + 4 + 5
307: (8 + 7) + 4 + 5
308: (8 + 7 + 4) + 5
309: ((8 + 7) + 4) + 5
310: (8 + (7 + 4)) + 5
311: 8 + (7 + 4) + 5
312: 8 + (7 + 4 + 5)
313: 8 + ((7 + 4) + 5)
314: 8 + (7 + (4 + 5))
315: 8 + 7 +(4 + 5)
316: (8 + 7) + (4 + 5)
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（5+7）÷4×8=24
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（5+7）÷4×8=24
5+4+7+8=24
4×(5+8-7)=24
5+4+7+8=24
4×(5+8-7)=24
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5+4+7+8=24
4*(5+8-7)=24
4*(5+8-7)=24
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