2,7,8,13的结果是24或-24.........24点算法。。。。。。。。。。。。速达！！！！！！ 2.3.7.8这四个数字算成24点，越多越好。
2 7 8 8=24 \u7b9724\u70b92 7 8 9\u7b9724\u70b9\u7684\u7b54\u6848\u5982\u4e0b\uff1a
1\u3001(2 \u00d7 (7 + 9)) - 8
2\u30012 \u00d7 (7 + 9) - 8
3\u3001(2 \u00d7 (9 + 7)) - 8
4\u3001 2 \u00d7 (9 + 7) - 8
5\u3001(7 + 9) \u00d7 2 - 8
6\u3001((7 + 9) \u00d7 2) - 8
7\u3001(9 + 7) \u00d7 2 - 8
8\u3001((9 + 7) \u00d7 2) - 8
\u6269\u5c55\u8d44\u6599
24\u70b9\u7684\u6e38\u620f\u6280\u5de7
1\u3001\u5229\u75283\u00d78=24\u30014\u00d76=24\u300112\u00d72=24\u6c42\u89e3\u3002
\u628a\u724c\u9762\u4e0a\u7684\u56db\u4e2a\u6570\u60f3\u529e\u6cd5\u51d1\u62103\u548c8\u30014\u548c6\uff0c\u518d\u76f8\u4e58\u6c42\u89e3.\u59823\u30013\u30016\u300110\u53ef\u7ec4\u6210(10-6\u00f73)\u00d73=24\u7b49\u3002
\u53c8\u59822\u30013\u30013\u30017\u53ef\u7ec4\u6210(7+3-2)\u00d73=24\u7b49.\u5b9e\u8df5\u8bc1\u660e\uff0c\u8fd9\u79cd\u65b9\u6cd5\u662f\u5229\u7528\u7387\u6700\u5927\u3001\u547d\u4e2d\u7387\u6700\u9ad8\u7684\u4e00\u79cd
\u65b9\u6cd5\u3002
2\u3001\u5229\u75280\u300111\u7684\u8fd0\u7b97\u7279\u6027\u6c42\u89e3\u3002
\u59823\u30014\u30014\u30018\u53ef\u7ec4\u62103\u00d78+4-4=24\u7b49.\u53c8\u59824\u30015\u3001J\u3001K\u53ef\u7ec4\u621011\u00d7(5-4)+13=24\u7b49
3\u3001\u5728\u6709\u89e3\u7684\u724c\u7ec4\u4e2d\uff0c\u7528\u5f97\u6700\u4e3a\u5e7f\u6cdb\u7684\u662f\u4ee5\u4e0b\u516d\u79cd\u89e3\u6cd5\uff1a(\u7528a\u3001b\u3001c\u3001d\u8868\u793a\u724c\u9762\u4e0a\u7684\u56db\u4e2a\u6570)\u3002
\u2460\u3001(a-b)\u00d7(c+d) \u5982(10-4)\u00d7(2+2)=24\u7b49\u3002
\u2461\u3001(a+b)\u00f7c\u00d7d \u5982(10+2)\u00f72\u00d74=24\u7b49\u3002
\u2462\u3001(a-b\u00f7c)\u00d7d \u5982(3-2\u00f72)\u00d712=24\u7b49\u3002
\u2463\u3001(a+b-c)\u00d7d \u5982(9+5\u20142)\u00d72=24\u7b49\u3002
\u2464\u3001a\u00d7b+c\u2014d \u598211\u00d73+l\u201410=24\u7b49\u3002
\u2465\u3001(a-b)\u00d7c+d \u5982(4-l)\u00d76+6=24\u7b49\u3002
\u9700\u8981\u8bf4\u660e\u7684\u662f\uff1a\u7ecf\u8ba1\u7b97\u673a\u51c6\u786e\u8ba1\u7b97\uff0c\u968f\u673a\u76844\u4e2a1-13\u7684\u6574\u6570(\u6570\u5b57\u53ef\u91cd\u590d)\u4e2d\uff0c\u80fd\u591f\u7b97\u5f9724\u7684\u6982\u7387\u7ea6\u4e3a74.835%\u3002
\u201c\u5de7\u7b9724\u70b9\u201d\u80fd\u6781\u5927\u9650\u5ea6\u5730\u8c03\u52a8\u773c\u3001\u8111\u3001\u624b\u3001\u53e3\u3001\u8033\u591a\u79cd\u611f\u5b98\u7684\u534f\u8c03\u6d3b\u52a8\uff0c\u5bf9\u4e8e\u57f9\u517b\u6211\u4eec\u5feb\u6377\u7684\u5fc3\u7b97\u80fd\u529b\u548c\u53cd\u5e94\u80fd\u529b\u5f88\u6709\u5e2e\u52a9\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\u767e\u5ea6\u767e\u79d1-24\u70b9
(2 + 7) \u00f7 3 \u00d7 8
2: ((2 + 7) \u00f7 3) \u00d7 8
3: (2 + 7) \u00f7 (3 \u00f7 8)
4: 2 \u00d7 (7 - 3 + 8)
5: 2 \u00d7 ((7 - 3) + 8)
6: 2 \u00d7 (7 - (3 - 8))
7: (2 + 7) \u00d7 8 \u00f7 3
8: ((2 + 7) \u00d7 8) \u00f7 3
9: (2 + 7) \u00d7 (8 \u00f7 3)
10: 2 \u00d7 (7 + 8 - 3)
11: 2 \u00d7 ((7 + 8) - 3)
12: 2 \u00d7 (7 + (8 - 3))
13: (2 - 8) \u00d7 (3 - 7)
14: 2 \u00d7 (8 - 3 + 7)
15: 2 \u00d7 ((8 - 3) + 7)
16: 2 \u00d7 (8 - (3 - 7))
17: 2 \u00d7 (8 + 7 - 3)
18: 2 \u00d7 ((8 + 7) - 3)
19: 2 \u00d7 (8 + (7 - 3))
20: (3 - 7) \u00d7 (2 - 8)
21: (7 + 2) \u00f7 3 \u00d7 8
22: ((7 + 2) \u00f7 3) \u00d7 8
23: (7 + 2) \u00f7 (3 \u00f7 8)
24: (7 + 2) \u00d7 8 \u00f7 3
25: ((7 + 2) \u00d7 8) \u00f7 3
26: (7 + 2) \u00d7 (8 \u00f7 3)
27: (7 - 3 + 8) \u00d7 2
28: ((7 - 3) + 8) \u00d7 2
29: (7 - (3 - 8)) \u00d7 2
30: (7 - 3) \u00d7 (8 - 2)
31: (7 + 8 - 3) \u00d7 2
32: ((7 + 8) - 3) \u00d7 2
33: (7 + (8 - 3)) \u00d7 2
34: (8 - 2) \u00d7 (7 - 3)
35: (8 \u00d7 (2 + 7)) \u00f7 3
36: 8 \u00d7 (2 + 7) \u00f7 3
37: 8 \u00d7 ((2 + 7) \u00f7 3)
38: 8 \u00f7 3 \u00d7(2 + 7)
39: (8 \u00f7 3) \u00d7 (2 + 7)
40: 8 \u00f7 (3 \u00f7 (2 + 7))
41: (8 - 3 + 7) \u00d7 2
42: ((8 - 3) + 7) \u00d7 2
43: (8 - (3 - 7)) \u00d7 2
44: 8 \u00f7 3 \u00d7(7 + 2)
45: (8 \u00f7 3) \u00d7 (7 + 2)
46: 8 \u00f7 (3 \u00f7 (7 + 2))
47: (8 \u00d7 (7 + 2)) \u00f7 3
48: 8 \u00d7 (7 + 2) \u00f7 3
49: 8 \u00d7 ((7 + 2) \u00f7 3)
50: (8 + 7 - 3) \u00d7 2
51: ((8 + 7) - 3) \u00d7 2
52: (8 + (7 - 3)) \u00d7 2
53: 8 \u00f7 (7 \u00f7 3 - 2)
54: 8 \u00f7 ((7 \u00f7 3) - 2)
如有不明白，可以追问
如有帮助，记得采纳，谢谢
2×（13+7-8)=24
7+13+8/2=24
希望对你有帮助~
7+13+8/2
绛旓細2脳锛13+7-8锛=2脳12=24 濡傛湁涓嶆槑鐧斤紝鍙互杩介棶 濡傛湁甯姪锛岃寰楅噰绾筹紝璋㈣阿
绛旓細2: 7+8/2+13=24 3: (13-8+7)*2=24
绛旓細(13+3)/4*6;2*7+4+6;8/(4/3-1);3*9-9/3;(2+3)*5-1;2+2+4*5;(3+5)*(6-3);(6/9+2)*9;(5-1/5)*5;(2+4/10)*10;(3/7+3)*7;8/(3-8/3);4/(1-5/6);12/(7-13/2);8/(13/3-4);12/(3-5/2);6/(13/4-3);6/(1-6/8);(13-9+8)*2;...
绛旓細锕1锛7锕氾紜锕8脳2锕氾箼7锛1锕毭楋箼8梅2锕氾箼2脳8锕氾紜锕1锛7锕8锛媅2脳锕7锛1锕歖[锕2脳8锕氾紜7]锛1 7锛媅锕2脳8锕氾紜1][7锛嬶箼2脳8锕歖锛1 锕1锛7锕氾紜锕2脳8锕7锛媅1锛嬶箼2脳8锕歖[7锛嬶箼8脳2锕歖锛1 [2脳锕1锛7锕歖锛8 [1锛嬶箼2脳8锕歖锛7 [8脳锕7锛1锕歖梅2 [锕8脳...
绛旓細23: 7 脳 8 梅 2 - 4 24: (7 脳 8) 梅 2 - 4 25: (7 脳 8 梅 2) - 4 26: ((7 脳 8) 梅 2) - 4 27: (7 脳 (8 梅 2)) - 4 28: 7 脳 (8 梅 2) - 4 29: 8 梅 2 脳 7 - 4 30: (8 梅 2) 脳 7 - 4 31: (8 梅 2 脳 7) -...
绛旓細绛旀涓嶅敮涓锛屾瘮濡傦細锛2+13锛壝5脳8锛24 锛2+13锛壝凤紙5梅8锛夛紳24 2脳8+13-5锛24 2脳锛13-5锛+8锛24 8脳2+13-5锛24 13+5+8-2锛24 鈥︹﹁皟鏁存暟瀛楃殑椤哄簭锛屽彧瑕缁撴灉鏄24锛灏辩畻姝ｇ‘
绛旓細22: 8 脳 (2 + 7 - 6)23: 8 脳 ((2 + 7) - 6)24: 8 脳 (2 + (7 - 6))25: (8 + 7) 脳 2 - 6 26: ((8 + 7) 脳 2) - 6 27: 8 脳 (7 + 2 - 6)28: 8 脳 ((7 + 2) - 6)29: 8 脳 (7 + (2 - 6))30: 8 脳 (7 - 6 + ...
绛旓細2锛2锛7锛10锛岀畻24鐐圭殑绠楀紡鏄細锛7+锛10梅2锛夛級脳2=24銆傞獙绠楁柟娉曞涓嬶細锛7+锛10梅2锛夛級脳2 锛濓紙7+5锛壝2 =12脳2 =24 绠24鐐圭殑瑙ｉ鎬濊矾锛氬埄鐢3脳8=24銆4脳6=24銆12脳2=24姹傝В銆傛妸2銆2銆7銆10杩欏洓涓暟鎯冲姙娉曞噾鎴3鍜8銆4鍜6銆12鍜2鍐嶇浉涔樻眰瑙ｃ傚2銆2銆7銆10鍙粍鎴愶紙7+...
绛旓細[-13*(-5)+7]/3=24 绗竴绉嶏細2+7-(-9)-(-6)=24绗浜绉嶏細锛-9锛*2-锛-6锛*7=24绗笁绉嶏細锛-6锛*2*(-9+7)=24 3*6-7-锛-13锛=24
绛旓細((2+7)*8)/3 (2+7)*(8/3)2*((7+8)-3)2*(7+(8-3))(3-7)*(2-8)(8-2)*(7-3)8*((2+7)/3)(8*(2+7))/3 8/(3/(2+7))(8/3)*(2+7)(8-(3-7))*2 ((8-3)+7)*2 8/(3/(7+2))(8/3)*(7+2)8*((7+2)/3)(8*(7+2))/3 ((8+7)-3)...
