1樓：宇宙小怪物
①1，4，5，6
1: 4 ÷ (1 - 5 ÷ 6)
2: 4 ÷ (1 - (5 ÷ 6))3: 6 ÷ (5 ÷ 4 - 1)
4: 6 ÷ ((5 ÷ 4) - 1)②2，3，3，3
1: (2 + 3 + 3) × 3
2: ((2 + 3) + 3) × 33: (2 + (3 + 3)) × 34: 2 × (3 + 3 × 3)
5: 2 × (3 + (3 × 3))6: 2 × (3 × 3 + 3)
7: 2 × ((3 × 3) + 3)8: (3 + 2 + 3) × 3
9: ((3 + 2) + 3) × 310: (3 + (2 + 3)) × 311: 3 × (2 + 3 + 3)
12: 3 × ((2 + 3) + 3)13: 3 × (2 + (3 + 3))14: (3 + 3 + 2) × 3
15: ((3 + 3) + 2) × 316: (3 + (3 + 2)) × 317: 3 × (3 + 2 + 3)
18: 3 × ((3 + 2) + 3)19: 3 × (3 + (2 + 3))20: (3 + 3 × 3) × 2
21: (3 + (3 × 3)) × 222: 3 × (3 + 3 + 2)
23: 3 × ((3 + 3) + 2)24: 3 × (3 + (3 + 2))25: (3 × 3 + 3) × 2
26: ((3 × 3) + 3) × 2③3，3，7，10
不可能④2，5，9，10
1: 10 × 2 - 5 + 9
2: (10 × 2) - 5 + 9
3: (10 × 2 - 5) + 9
4: ((10 × 2) - 5) + 95: 10 × 2 -(5 - 9)
6: (10 × 2) - (5 - 9)7: 10 × 2 + 9 - 5
8: (10 × 2) + 9 - 5
9: (10 × 2 + 9) - 5
10: ((10 × 2) + 9) - 511: 10 × 2 +(9 - 5)
12: (10 × 2) + (9 - 5)13: 2 × 10 - 5 + 9
14: (2 × 10) - 5 + 915: (2 × 10 - 5) + 916: ((2 × 10) - 5) + 917: 2 × 10 -(5 - 9)
18: (2 × 10) - (5 - 9)19: 2 × 10 + 9 - 5
20: (2 × 10) + 9 - 521: (2 × 10 + 9) - 522: ((2 × 10) + 9) - 523: 2 × 10 +(9 - 5)
24: (2 × 10) + (9 - 5)25: 9 + 10 × 2 - 5
26: (9 + 10 × 2) - 527: (9 + (10 × 2)) - 528:
9 + (10 × 2) - 529: 9 + (10 × 2 - 5)30: 9 + ((10 × 2) - 5)31:
9 + 2 × 10 - 5
32: (9 + 2 × 10) - 533: (9 + (2 × 10)) - 534:
9 + (2 × 10) - 535: 9 + (2 × 10 - 5)36: 9 + ((2 × 10) - 5)37:
9 - 5 + 10 × 2
38: (9 - 5) + 10 × 239: 9 - 5 +(10 × 2)
40: (9 - 5) + (10 × 2)41: 9 - (5 - 10 × 2)42: 9 - (5 - (10 × 2))43: 9 - 5 + 2 × 10
44: (9 - 5) + 2 × 1045: 9 - 5 +(2 × 10)
46: (9 - 5) + (2 × 10)47: 9 - (5 - 2 × 10)48: 9 - (5 - (2 × 10))⑤5，8，11，12
1: (11 + 5) ÷ 8 × 122: ((11 + 5) ÷ 8) × 123:
(11 + 5) ÷ (8 ÷ 12)4: (11 + 5) × 12 ÷ 85: ((11 + 5) × 12) ÷ 86:
(11 + 5) × (12 ÷ 8)7: (11 - 5) × (12 - 8)8: (8 - 11 + 5) × 129:
((8 - 11) + 5) × 1210: (8 - (11 - 5)) × 1211: (8 + 5 - 11) × 1212:
((8 + 5) - 11) × 1213: (8 + (5 - 11)) × 1214: (8 - 12) × (5 - 11)15:
(5 + 11) ÷ 8 × 1216: ((5 + 11) ÷ 8) × 1217: (5 + 11) ÷ (8 ÷ 12)18:
(5 - 11 + 8) × 1219: ((5 - 11) + 8) × 1220: (5 - (11 - 8)) × 1221:
(5 - 11) × (8 - 12)22: (5 + 11) × 12 ÷ 823: ((5 + 11) × 12) ÷ 824:
(5 + 11) × (12 ÷ 8)25: (5 + 8 - 11) × 1226: ((5 + 8) - 11) × 1227:
(5 + (8 - 11)) × 1228: (12 × (11 + 5)) ÷ 829: 12 × (11 + 5) ÷ 830:
12 × ((11 + 5) ÷ 8)31: (12 - 8) × (11 - 5)32: 12 × (8 - 11 + 5)33:
12 × ((8 - 11) + 5)34: 12 × (8 - (11 - 5))35: 12 ÷ 8 ×(11 + 5)36:
(12 ÷ 8) × (11 + 5)37: 12 ÷ (8 ÷ (11 + 5))38: 12 × (8 + 5 - 11)39:
12 × ((8 + 5) - 11)40: 12 × (8 + (5 - 11))41: 12 ÷ 8 ×(5 + 11)42:
(12 ÷ 8) × (5 + 11)43: 12 ÷ (8 ÷ (5 + 11))44: (12 × (5 + 11)) ÷ 845:
12 × (5 + 11) ÷ 846: 12 × ((5 + 11) ÷ 8)47: 12 × (5 - 11 + 8)48:
12 × ((5 - 11) + 8)49: 12 × (5 - (11 - 8))50: 12 × (5 + 8 - 11)51:
12 × ((5 + 8) - 11)52: 12 × (5 + (8 - 11))⑥2，3，10，13
1: 10 + 3 - 2 + 13
2: (10 + 3) - 2 + 133: (10 + 3 - 2) + 134:
((10 + 3) - 2) + 135: (10 + (3 - 2)) + 136: 10 + (3 - 2) + 137:
10 + (3 - 2 + 13)8: 10 + ((3 - 2) + 13)9: 10 + (3 - (2 - 13))10:
10 + 3 -(2 - 13)11: (10 + 3) - (2 - 13)12: 10 + 3 + 13 - 2
13: (10 + 3) + 13 - 214: (10 + 3 + 13) - 215:
((10 + 3) + 13) - 216: (10 + (3 + 13)) - 217: 10 + (3 + 13) - 218:
10 + (3 + 13 - 2)19: 10 + ((3 + 13) - 2)20: 10 + (3 + (13 - 2))21:
10 + 3 +(13 - 2)22: (10 + 3) + (13 - 2)23: 10 - 2 + 3 + 13
24: (10 - 2) + 3 + 1325: (10 - 2 + 3) + 1326:
((10 - 2) + 3) + 1327: 10 - 2 +(3 + 13)28: (10 - 2) + (3 + 13)29:
(10 - (2 - 3)) + 1330: 10 - (2 - 3) + 1331: 10 - (2 - (3 + 13))32:
10 - (2 - 3 - 13)33: 10 - ((2 - 3) - 13)34: 10 - 2 + 13 + 3
35: (10 - 2) + 13 + 336: (10 - 2 + 13) + 337:
((10 - 2) + 13) + 338: 10 - 2 +(13 + 3)39: (10 - 2) + (13 + 3)40:
(10 - (2 - 13)) + 341: 10 - (2 - 13) + 342: 10 - (2 - (13 + 3))43:
10 - (2 - 13 - 3)44: 10 - ((2 - 13) - 3)45: 10 + 13 + 3 - 2
46: (10 + 13) + 3 - 247: (10 + 13 + 3) - 248:
((10 + 13) + 3) - 249: (10 + (13 + 3)) - 250: 10 + (13 + 3) - 251:
10 + (13 + 3 - 2)52: 10 + ((13 + 3) - 2)53: 10 + (13 + (3 - 2))54:
10 + 13 +(3 - 2)55: (10 + 13) + (3 - 2)56: 10 + 13 - 2 + 3
57: (10 + 13) - 2 + 358: (10 + 13 - 2) + 359:
((10 + 13) - 2) + 360: (10 + (13 - 2)) + 361: 10 + (13 - 2) + 362:
10 + (13 - 2 + 3)63: 10 + ((13 - 2) + 3)64: 10 + (13 - (2 - 3))65:
10 + 13 -(2 - 3)66: (10 + 13) - (2 - 3)67: 3 + 10 - 2 + 13
68: (3 + 10) - 2 + 1369: (3 + 10 - 2) + 1370:
((3 + 10) - 2) + 1371: (3 + (10 - 2)) + 1372: 3 + (10 - 2) + 1373:
3 + (10 - 2 + 13)74: 3 + ((10 - 2) + 13)75: 3 + (10 - (2 - 13))76:
3 + 10 -(2 - 13)77: (3 + 10) - (2 - 13)78: 3 + 10 + 13 - 2
79: (3 + 10) + 13 - 280: (3 + 10 + 13) - 281:
((3 + 10) + 13) - 282: (3 + (10 + 13)) - 283: 3 + (10 + 13) - 284:
3 + (10 + 13 - 2)85: 3 + ((10 + 13) - 2)86: 3 + (10 + (13 - 2))87:
3 + 10 +(13 - 2)88: (3 + 10) + (13 - 2)89: 3 - 2 + 10 + 13
90: (3 - 2) + 10 + 1391: (3 - 2 + 10) + 1392:
((3 - 2) + 10) + 1393: 3 - 2 +(10 + 13)94: (3 - 2) + (10 + 13)95:
(3 - (2 - 10)) + 1396: 3 - (2 - 10) + 1397: 3 - (2 - (10 + 13))98:
3 - (2 - 10 - 13)99: 3 - ((2 - 10) - 13)100: 3 - 2 + 13 + 10101:
(3 - 2) + 13 + 10102: (3 - 2 + 13) + 10103: ((3 - 2) + 13) + 10104:
3 - 2 +(13 + 10)105: (3 - 2) + (13 + 10)106: (3 - (2 - 13)) + 10107:
3 - (2 - 13) + 10108: 3 - (2 - (13 + 10))109: 3 - (2 - 13 - 10)110:
3 - ((2 - 13) - 10)111: 3 + 13 + 10 - 2112: (3 + 13) + 10 - 2113:
(3 + 13 + 10) - 2114: ((3 + 13) + 10) - 2115: (3 + (13 + 10)) - 2116:
3 + (13 + 10) - 2117: 3 + (13 + 10 - 2)118: 3 + ((13 + 10) - 2)119:
3 + (13 + (10 - 2))120: 3 + 13 +(10 - 2)121: (3 + 13) + (10 - 2)122:
3 × (13 - 10 ÷ 2)123: 3 × (13 - (10 ÷ 2))124: 3 + 13 - 2 + 10125:
(3 + 13) - 2 + 10126: (3 + 13 - 2) + 10127: ((3 + 13) - 2) + 10128:
(3 + (13 - 2)) + 10129: 3 + (13 - 2) + 10130: 3 + (13 - 2 + 10)131:
3 + ((13 - 2) + 10)132: 3 + (13 - (2 - 10))133: 3 + 13 -(2 - 10)134:
(3 + 13) - (2 - 10)135: 13 + 10 + 3 - 2136: (13 + 10) + 3 - 2137:
(13 + 10 + 3) - 2138: ((13 + 10) + 3) - 2139: (13 + (10 + 3)) - 2140:
13 + (10 + 3) - 2141: 13 + (10 + 3 - 2)142: 13 + ((10 + 3) - 2)143:
13 + (10 + (3 - 2))144: 13 + 10 +(3 - 2)145: (13 + 10) + (3 - 2)146:
13 + 10 - 2 + 3147: (13 + 10) - 2 + 3148: (13 + 10 - 2) + 3149:
((13 + 10) - 2) + 3150: (13 + (10 - 2)) + 3151: 13 + (10 - 2) + 3152:
13 + (10 - 2 + 3)153: 13 + ((10 - 2) + 3)154: 13 + (10 - (2 - 3))155:
13 + 10 -(2 - 3)156: (13 + 10) - (2 - 3)157: (13 - 10 ÷ 2) × 3158:
(13 - (10 ÷ 2)) × 3159: 13 + 3 + 10 - 2160: (13 + 3) + 10 - 2161:
(13 + 3 + 10) - 2162: ((13 + 3) + 10) - 2163: (13 + (3 + 10)) - 2164:
13 + (3 + 10) - 2165: 13 + (3 + 10 - 2)166: 13 + ((3 + 10) - 2)167:
13 + (3 + (10 - 2))168: 13 + 3 +(10 - 2)169: (13 + 3) + (10 - 2)170:
13 + 3 - 2 + 10171: (13 + 3) - 2 + 10172: (13 + 3 - 2) + 10173:
((13 + 3) - 2) + 10174: (13 + (3 - 2)) + 10175: 13 + (3 - 2) + 10176:
13 + (3 - 2 + 10)177: 13 + ((3 - 2) + 10)178: 13 + (3 - (2 - 10))179:
13 + 3 -(2 - 10)180: (13 + 3) - (2 - 10)181: 13 - 2 + 10 + 3182:
(13 - 2) + 10 + 3183: (13 - 2 + 10) + 3184: ((13 - 2) + 10) + 3185:
13 - 2 +(10 + 3)186: (13 - 2) + (10 + 3)187: (13 - (2 - 10)) + 3188:
13 - (2 - 10) + 3189: 13 - (2 - (10 + 3))190: 13 - (2 - 10 - 3)191:
13 - ((2 - 10) - 3)192: 13 - 2 + 3 + 10193: (13 - 2) + 3 + 10194:
(13 - 2 + 3) + 10195: ((13 - 2) + 3) + 10196: 13 - 2 +(3 + 10)197:
(13 - 2) + (3 + 10)198: (13 - (2 - 3)) + 10199: 13 - (2 - 3) + 10200:
13 - (2 - (3 + 10))201: 13 - (2 - 3 - 10)202: 13 - ((2 - 3) - 10)⑦1，4，8，13
1: (1 - 8 + 13) × 4
2: ((1 - 8) + 13) × 43: (1 - (8 - 13)) × 44: (1 + 13 - 8) × 4
5: ((1 + 13) - 8) × 46: (1 + (13 - 8)) × 47: 4 - 1 + 8 + 13
8: (4 - 1) + 8 + 13
9: (4 - 1 + 8) + 13
10: ((4 - 1) + 8) + 1311: 4 - 1 +(8 + 13)
12: (4 - 1) + (8 + 13)13: (4 - (1 - 8)) + 1314:
4 - (1 - 8) + 1315: 4 - (1 - (8 + 13))16: 4 - (1 - 8 - 13)17:
4 - ((1 - 8) - 13)18: 4 × (1 - 8 + 13)19: 4 × ((1 - 8) + 13)20:
4 × (1 - (8 - 13))21: 4 - 1 + 13 + 8
22: (4 - 1) + 13 + 823: (4 - 1 + 13) + 824: ((4 - 1) + 13) + 825: 4 - 1 +(13 + 8)
26: (4 - 1) + (13 + 8)27: (4 - (1 - 13)) + 828:
4 - (1 - 13) + 829: 4 - (1 - (13 + 8))30: 4 - (1 - 13 - 8)31:
4 - ((1 - 13) - 8)32: 4 × (1 + 13 - 8)33: 4 × ((1 + 13) - 8)34:
4 × (1 + (13 - 8))35: 4 + 8 - 1 + 13
36: (4 + 8) - 1 + 1337: (4 + 8 - 1) + 1338:
((4 + 8) - 1) + 1339: (4 + (8 - 1)) + 1340: 4 + (8 - 1) + 1341:
4 + (8 - 1 + 13)42: 4 + ((8 - 1) + 13)43: 4 + (8 - (1 - 13))44:
4 + 8 -(1 - 13)
45: (4 + 8) - (1 - 13)46: 4 + 8 + 13 - 1
47: (4 + 8) + 13 - 148: (4 + 8 + 13) - 149:
((4 + 8) + 13) - 150: (4 + (8 + 13)) - 151: 4 + (8 + 13) - 152:
4 + (8 + 13 - 1)53: 4 + ((8 + 13) - 1)54: 4 + (8 + (13 - 1))55:
4 + 8 +(13 - 1)
56: (4 + 8) + (13 - 1)57: 4 + 13 - 1 + 8
58: (4 + 13) - 1 + 859: (4 + 13 - 1) + 860:
((4 + 13) - 1) + 861: (4 + (13 - 1)) + 862: 4 + (13 - 1) + 863:
4 + (13 - 1 + 8)64: 4 + ((13 - 1) + 8)65: 4 + (13 - (1 - 8))66:
4 + 13 -(1 - 8)
67: (4 + 13) - (1 - 8)68: 4 × (13 + 1 - 8)69:
4 × ((13 + 1) - 8)70: 4 × (13 + (1 - 8))71: 4 + 13 + 8 - 1
72: (4 + 13) + 8 - 173: (4 + 13 + 8) - 174:
((4 + 13) + 8) - 175: (4 + (13 + 8)) - 176: 4 + (13 + 8) - 177:
4 + (13 + 8 - 1)78: 4 + ((13 + 8) - 1)79: 4 + (13 + (8 - 1))80:
4 + 13 +(8 - 1)
81: (4 + 13) + (8 - 1)82: 4 × (13 - 8 + 1)83:
4 × ((13 - 8) + 1)84: 4 × (13 - (8 - 1))85: 8 - 1 + 4 + 13
86: (8 - 1) + 4 + 1387: (8 - 1 + 4) + 1388: ((8 - 1) + 4) + 1389: 8 - 1 +(4 + 13)
90: (8 - 1) + (4 + 13)91: (8 - (1 - 4)) + 1392:
8 - (1 - 4) + 1393: 8 - (1 - (4 + 13))94: 8 - (1 - 4 - 13)95:
8 - ((1 - 4) - 13)96: 8 - 1 + 13 + 4
97: (8 - 1) + 13 + 498: (8 - 1 + 13) + 499:
((8 - 1) + 13) + 4100: 8 - 1 +(13 + 4)101: (8 - 1) + (13 + 4)102:
(8 - (1 - 13)) + 4103: 8 - (1 - 13) + 4104: 8 - (1 - (13 + 4))105:
8 - (1 - 13 - 4)106: 8 - ((1 - 13) - 4)107: 8 + 4 - 1 + 13
108: (8 + 4) - 1 + 13109: (8 + 4 - 1) + 13110:
((8 + 4) - 1) + 13111: (8 + (4 - 1)) + 13112: 8 + (4 - 1) + 13113:
8 + (4 - 1 + 13)114: 8 + ((4 - 1) + 13)115: 8 + (4 - (1 - 13))116:
8 + 4 -(1 - 13)117: (8 + 4) - (1 - 13)118: 8 + 4 + 13 - 1
119: (8 + 4) + 13 - 1120: (8 + 4 + 13) - 1121:
((8 + 4) + 13) - 1122: (8 + (4 + 13)) - 1123: 8 + (4 + 13) - 1124:
8 + (4 + 13 - 1)125: 8 + ((4 + 13) - 1)126: 8 + (4 + (13 - 1))127:
8 + 4 +(13 - 1)128: (8 + 4) + (13 - 1)129: 8 ÷ 4 ×(13 - 1)130:
(8 ÷ 4) × (13 - 1)131: 8 ÷ (4 ÷ (13 - 1))132: 8 + 13 - 1 + 4
133: (8 + 13) - 1 + 4134: (8 + 13 - 1) + 4135:
((8 + 13) - 1) + 4136: (8 + (13 - 1)) + 4137: 8 + (13 - 1) + 4138:
8 + (13 - 1 + 4)139: 8 + ((13 - 1) + 4)140: 8 + (13 - (1 - 4))141:
8 + 13 -(1 - 4)142: (8 + 13) - (1 - 4)143: (8 × (13 - 1)) ÷ 4144:
8 × (13 - 1) ÷ 4145: 8 × ((13 - 1) ÷ 4)146: 8 + 13 + 4 - 1
147: (8 + 13) + 4 - 1148: (8 + 13 + 4) - 1149:
((8 + 13) + 4) - 1150: (8 + (13 + 4)) - 1151: 8 + (13 + 4) - 1152:
8 + (13 + 4 - 1)153: 8 + ((13 + 4) - 1)154: 8 + (13 + (4 - 1))155:
8 + 13 +(4 - 1)156: (8 + 13) + (4 - 1)157: 13 - 1 + 4 + 8
158: (13 - 1) + 4 + 8159: (13 - 1 + 4) + 8160:
((13 - 1) + 4) + 8161: 13 - 1 +(4 + 8)162: (13 - 1) + (4 + 8)163:
(13 - (1 - 4)) + 8164: 13 - (1 - 4) + 8165: 13 - (1 - (4 + 8))166:
13 - (1 - 4 - 8)167: 13 - ((1 - 4) - 8)168: (13 - 1) ÷ 4 × 8169:
((13 - 1) ÷ 4) × 8170: (13 - 1) ÷ (4 ÷ 8)171: (13 + 1 - 8) × 4172:
((13 + 1) - 8) × 4173: (13 + (1 - 8)) × 4174: 13 - 1 + 8 + 4
175: (13 - 1) + 8 + 4176: (13 - 1 + 8) + 4177:
((13 - 1) + 8) + 4178: 13 - 1 +(8 + 4)179: (13 - 1) + (8 + 4)180:
(13 - (1 - 8)) + 4181: 13 - (1 - 8) + 4182: 13 - (1 - (8 + 4))183:
13 - (1 - 8 - 4)184: 13 - ((1 - 8) - 4)185: (13 - 1) × 8 ÷ 4186:
((13 - 1) × 8) ÷ 4187: (13 - 1) × (8 ÷ 4)188: 13 + 4 - 1 + 8
189: (13 + 4) - 1 + 8190: (13 + 4 - 1) + 8191:
((13 + 4) - 1) + 8192: (13 + (4 - 1)) + 8193: 13 + (4 - 1) + 8194:
13 + (4 - 1 + 8)195: 13 + ((4 - 1) + 8)196: 13 + (4 - (1 - 8))197:
13 + 4 -(1 - 8)198: (13 + 4) - (1 - 8)199: 13 + 4 + 8 - 1
200: (13 + 4) + 8 - 1201: (13 + 4 + 8) - 1202:
((13 + 4) + 8) - 1203: (13 + (4 + 8)) - 1204: 13 + (4 + 8) - 1205:
13 + (4 + 8 - 1)206: 13 + ((4 + 8) - 1)207: 13 + (4 + (8 - 1))208:
13 + 4 +(8 - 1)209: (13 + 4) + (8 - 1)210: 13 + 8 - 1 + 4
211: (13 + 8) - 1 + 4212: (13 + 8 - 1) + 4213:
((13 + 8) - 1) + 4214: (13 + (8 - 1)) + 4215: 13 + (8 - 1) + 4216:
13 + (8 - 1 + 4)217: 13 + ((8 - 1) + 4)218: 13 + (8 - (1 - 4))219:
13 + 8 -(1 - 4)220: (13 + 8) - (1 - 4)221: (13 - 8 + 1) × 4222:
((13 - 8) + 1) × 4223: (13 - (8 - 1)) × 4224: 13 + 8 + 4 - 1
225: (13 + 8) + 4 - 1226: (13 + 8 + 4) - 1227:
((13 + 8) + 4) - 1228: (13 + (8 + 4)) - 1229: 13 + (8 + 4) - 1230:
13 + (8 + 4 - 1)231: 13 + ((8 + 4) - 1)232: 13 + (8 + (4 - 1))233:
13 + 8 +(4 - 1)234: (13 + 8) + (4 - 1)⑧3，3，9，11
1: 3 × (11 - 9 ÷ 3)
2: 3 × (11 - (9 ÷ 3))3: 9 ÷ 3 ×(11 - 3)
4: (9 ÷ 3) × (11 - 3)5: 9 ÷ (3 ÷ (11 - 3))6: (9 × (11 - 3)) ÷ 37: 9 × (11 - 3) ÷ 3
8: 9 × ((11 - 3) ÷ 3)9: (11 - 3) ÷ 3 × 9
10: ((11 - 3) ÷ 3) × 911: (11 - 3) ÷ (3 ÷ 9)12:
(11 - 3) × 9 ÷ 313: ((11 - 3) × 9) ÷ 314: (11 - 3) × (9 ÷ 3)15:
(11 - 9 ÷ 3) × 316: (11 - (9 ÷ 3)) × 3
7 8算24點，3 4 7 8 算24點
撫風撩雪獨愛 4x 7 3 8 24 4x4 8 16 8 24。四則混合運算順序 同級運算時，從左到右依次計算 兩級運算時，先算乘除，後算加減。有括號時，先算括號裡面的，再算括號外面的。整數的乘法運算滿足 交換律，結合律，分配律，消去律。隨著數學的發展，運算的物件從整數發展為更一般群。群中的乘法運...
9算24點，3 7 3 9算24點？
琉璃蘿莎 3 7 9 10 3 7 9 10 3 7 10 9 3 7 10 9 3 9 7 10 3 9 7 10 3 9 10 7 3 9 10 7 3 10 7 9 3 10 7 9 3 10 9 7 3 10 9 7 7 3 9 10 7 3 9 10 7 9 3 10 7 9 3 10 7...
算24點 5,8,，算24點 5,8,1,2
看一樓吧 一樓答案很詳細的！ 5 8 1 2 5 8 1 2 5 1 8 2 5 1 8 2 5 1 8 2 5 1 8 2 5 1 8 2 5 1 2 8 5 1 2 8 5 1 2 8 5 1 2 8 5 1 2 8 5 2 8 1 5 2 8 1 5 2 8 1 5 2 8 1 5 2 1 8...