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用2,4,4,5算24点

共6种不同算法,举例如下: 2×(4×5-8)=24 4×2×(8-5)=24

(2×(3+(4+5))) (2×((3+4)+5)) (2×(3+(5+4))) (2×((3+5)+4)) (2×(4+(3+5))) (2×((4+3)+5)) (2×(4+(5+3))) (2×((4+5)+3)) (2×(5+(3+4))) (2×((5+3)+4)) (2×(5+(4+3))) (2×((5+4)+3)) ((3-(2-5))×4) (((3-2)+5)×4) ((3+(4+5))×2) (((3+4)+5)×2) ((3...

1.3+5=8,8-2=6,4×6=24 2.3+4+5=12,12×2=24

36个解 (-2)*((-3)-(4+5))=24 (-2)*((-3)-4-5)=24 (-2)*(((-3)-4)-5)=24 ((-2)-(-3)+5)*4=24 (((-2)-(-3))+5)*4=24 ((-2)-((-3)-5))*4=24 (-2)*((-3)-(5+4))=24 (-2)*((-3)-5-4)=24 (-2)*(((-3)-5)-4)=24 ((-2)+5-(-3))*4=24 (((-2)+5)-(-3))*4=...

(7+5)×(4—2)

1. [﹙5+9﹚×2]-4 2. ﹙4+2﹚×﹙9-5﹚ 3. [9-﹙5-2﹚]×4

5×(2+2)+4=24

4x5+2+2 =20+2+2 =22+2 =24

2, 4, 4, 5的24点答案: 1: (2 + 5) × 4 - 4 2: ((2 + 5) × 4) - 4 3: (2 × 5 - 4) × 4 4: ((2 × 5) - 4) × 4 5: (4 × (2 + 5)) - 4 6: 4 × (2 + 5) - 4 7: 4 × (2 × 5 - 4) 8: 4 × ((2 × 5) - 4) 9: (4 + 4) × (5 - 2) 10: (4 × (5 + 2)) - 4 1...

(9+5)x2-4=24

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