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4,5,8,9算24点

4×(9-8+5)

8*(4*2-5) =8*(8-5) =8*3 =24; (8-5)*4*2 =3*4*2 =12*2 =24; 4*5+8/2 =20+4 =24; 8*(5-4+2) =8*3 =24; 8*5/2+4 =40/2+4 =20+4 =24; ……

【5,8,9,10】共有0种算法

1: 4 × (7 + 8 - 9) 2: 4 × ((7 + 8) - 9) 3: 4 × (7 + (8 - 9)) 4: 4 × (7 - 9 + 8) 5: 4 × ((7 - 9) + 8) 6: 4 × (7 - (9 - 8)) 7: 4 × (8 + 7 - 9) 8: 4 × ((8 + 7) - 9) 9: 4 × (8 + (7 - 9)) 10: (4 + 8) × (9 - 7) 11: 4 × (8 - 9 + 7) 12...

1: (5 × (4 - 1)) + 9 2: 5 × (4 - 1) + 9 3: (5 × (9 - 4)) - 1 4: 5 × (9 - 4) - 1 5: (4 - 1) × 5 + 9 6: ((4 - 1) × 5) + 9 7: 9 + (5 × (4 - 1)) 8: 9 + 5 ×(4 - 1) 9: 9 - (5 × (1 - 4)) 10: 9 - 5 ×(1 - 4) 11: (9 - 4) × 5 - 1 12: ((9 ...

9*3+5-8=24; 9*3-(8-5)=24; 9*(8-5)-3=24;

1: 4 × 9 -(5 + 7) 2: (4 × 9) - (5 + 7) 3: 4 × 9 - 5 - 7 4: (4 × 9) - 5 - 7 5: (4 × 9 - 5) - 7 6: ((4 × 9) - 5) - 7 7: 4 × 9 -(7 + 5) 8: (4 × 9) - (7 + 5) 9: 4 × 9 - 7 - 5 10: (4 × 9) - 7 - 5 11: (4 × 9 - 7) - 5 12: ((4 × 9) - 7...

5-4=1 -9+1=-8 -8x-3=24

8 ÷ 4 x 7 +10 = 24 你好,这是百度“ 知道专家部特约专家”的回答,有什么不明白的地方可以追问,满意请采纳

3444: [﹙3+4﹚×4]-4[4×﹙4+3﹚]-4[4×﹙3+4﹚]-4[﹙4+3﹚×4]-4 69910: [10×﹙9÷6﹚]+99+[﹙10÷6﹚×9]9+[﹙9×10﹚÷6][10÷﹙6÷9﹚]+9[9÷﹙6÷10﹚]+9[﹙9÷6﹚×10]+99+[10×﹙9÷6﹚][﹙10÷6﹚×9]+9[﹙10×9﹚÷6]+99+[9÷﹙6÷10﹚]9...

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