一个24点的问题

2025-02-07 17:48:14
推荐回答(5个)
回答1:

3388=24
8/(3-8/3)

由四个1-9范围内的整数参加四则运算,结果等于给定的整数,称为“类24点”问题。

下表列出了结果在100以内的,只有分数解(运算中间结果出现分数)的“类24点”问题集合(排出了有整数解的情形)。

--=( 1 )=--
1) 3347= 1 7/3-4/3
2) 4459= 1 9/4-5/4
3) 4559= 1 9/5-4/5
--=( 2 )=--
1) 2579= 2 5/(7-9/2) 9/(7-5/2)
--=( 3 )=--
1) 1347= 3 4/(7/3-1) 7/(4/3+1)
2) 5578= 3 8/5+7/5
--=( 4 )=--
1) 1155= 4 (1-1/5)*5
2) 1337= 4 (7/3-1)*3
3) 1459= 4 5/(9/4-1) 9/(5/4+1)
4) 1559= 4 (9/5-1)*5
--=( 5 )=--
1) 1144= 5 (1/4+1)*4
2) 1166= 5 (1-1/6)*6
3) 1449= 5 (9/4-1)*4
4) 1459= 5 4/(9/5-1) 9/(4/5+1)
5) 2279= 5 (7-9/2)*2
6) 3578= 5 7/(3-8/5) 8/(3-7/5)
--=( 6 )=--
1) 1155= 6 (1/5+1)*5
2) 1177= 6 (1-1/7)*7
--=( 7 )=--
1) 1166= 7 (1/6+1)*6
2) 1188= 7 (1-1/8)*8
3) 1334= 7 (4/3+1)*3
4) 2259= 7 9/2+5/2
5) 3558= 7 (3-8/5)*5
--=( 8 )=--
1) 1177= 8 (1/7+1)*7
2) 1199= 8 (1-1/9)*9
3) 2255= 8 (2-2/5)*5
4) 3557= 8 (3-7/5)*5
--=( 9 )=--
1) 1188= 9 (1/8+1)*8
2) 1445= 9 (5/4+1)*4
3) 1455= 9 (4/5+1)*5
4) 2257= 9 (7-5/2)*2
--=( 10 )=--
1) 1158=10 8/(1-1/5)
2) 1199=10 (1/9+1)*9
3) 1337=10 (7/3+1)*3
4) 3478=10 (3-7/4)*8
--=( 11 )=--
1) 1338=11 (8/3+1)*3
2) 1556=11 (6/5+1)*5
3) 1566=11 (5/6+1)*6
4) 2227=11 (7/2+2)*2
5) 2279=11 (9-7/2)*2
6) 2377=11 (2-3/7)*7
7) 2799=11 (2-7/9)*9
8) 4445=11 (4-5/4)*4
9) 4459=11 (5-9/4)*4
--=( 12 )=--
1) 2255=12 (2/5+2)*5
2) 2277=12 (2-2/7)*7
--=( 13 )=--
1) 1449=13 (9/4+1)*4
2) 1558=13 (8/5+1)*5
3) 1667=13 (7/6+1)*6
4) 1677=13 (6/7+1)*7
5) 2229=13 (9/2+2)*2
6) 2355=13 (3-2/5)*5 (3/5+2)*5
7) 2388=13 (2-3/8)*8
8) 2599=13 (2-5/9)*9
9) 3378=13 (7-8/3)*3
10) 3778=13 (3-8/7)*7
--=( 14 )=--
1) 1559=14 (9/5+1)*5
2) 2257=14 7/(5/2-2)
3) 2455=14 (4/5+2)*5
4) 2499=14 (2-4/9)*9
5) 3568=14 (5-8/3)*6
6) 3669=14 (3-6/9)*6
--=( 15 )=--
1) 1345=15 3/(1-4/5) 5/(4/3-1)
2) 1444=15 (4-1/4)*4
3) 1567=15 6/(7/5-1)
4) 1589=15 9/(8/5-1)
5) 1778=15 (8/7+1)*7
6) 1788=15 (7/8+1)*8
7) 2246=15 (2/4+2)*6
8) 2488=15 (8-4/8)*2
9) 3358=15 5/(3-8/3)
10) 3889=15 (3-9/8)*8
--=( 16 )=--
1) 1355=16 (3+1/5)*5
2) 2277=16 (2/7+2)*7
3) 2299=16 (2-2/9)*9
4) 2336=16 (6-2/3)*3
5) 2358=16 8/(3-5/2)
6) 2556=16 (6/5+2)*5
7) 3357=16 (7-5/3)*3
8) 5559=16 (5-9/5)*5
--=( 17 )=--
1) 1336=17 (6-1/3)*3
2) 1444=17 (4+1/4)*4
3) 1889=17 (9/8+1)*8
4) 1899=17 (8/9+1)*9
5) 2369=17 (9-3/6)*2
6) 2488=17 (8+4/8)*2
7) 2557=17 (7/5+2)*5
8) 2566=17 (5/6+2)*6
9) 3345=17 (5/3+4)*3
10) 3378=17 (8-7/3)*3
11) 3445=17 (5-3/4)*4 (5/4+3)*4
12) 3477=17 (3-4/7)*7
13) 3788=17 (3-7/8)*8
14) 4667=17 (4-7/6)*6
15) 5558=17 (5-8/5)*5
--=( 18 )=--
1) 2288=18 (2/8+2)*8
2) 2477=18 (4/7+2)*7
3) 3355=18 (3/5+3)*5
4) 3377=18 (3-3/7)*7
5) 4466=18 (6-6/4)*4
6) 5557=18 (5-7/5)*5
--=( 19 )=--
1) 1336=19 (6+1/3)*3
2) 2238=19 (8+3/2)*2
3) 2366=19 (6+2/6)*3
4) 2388=19 (3/8+2)*8
5) 2577=19 (5/7+2)*7
6) 2667=19 (7/6+2)*6
7) 3389=19 (9-8/3)*3
8) 3444=19 (4+3/4)*4
9) 3447=19 (7/4+3)*4
10) 3455=19 (4/5+3)*5
11) 3588=19 (3-5/8)*8
12) 4468=19 (6/8+4)*4
13) 4479=19 (7-9/4)*4
14) 5556=19 (5-6/5)*5
--=( 20 )=--
1) 1377=20 (3-1/7)*7
2) 2299=20 (2/9+2)*9
3) 2336=20 (6+2/3)*3
4) 2677=20 (6/7+2)*7
5) 3348=20 (8-4/3)*3 (8/3+4)*3
6) 3369=20 (3/9+3)*6
7) 3688=20 (8-8/6)*3
8) 4669=20 (4-6/9)*6
9) 4778=20 (4-8/7)*7
--=( 21 )=--
1) 1567=21 6/(1-5/7)
2) 2446=21 (4-2/4)*6
3) 2588=21 (5/8+2)*8
4) 3388=21 (3-3/8)*8
5) 4468=21 (4-4/8)*6
6) 4477=21 (7-7/4)*4
7) 5569=21 (6-9/5)*5
--=( 22 )=--
1) 1337=22 (7+1/3)*3
2) 1348=22 (3-1/4)*8
3) 1377=22 (3+1/7)*7
4) 1478=22 (7/4+1)*8
5) 2336=22 (3+2/3)*6
6) 2455=22 (4+2/5)*5
7) 2499=22 (4/9+2)*9
8) 2688=22 (6/8+2)*8
9) 2778=22 (8/7+2)*7
10) 3346=22 (6+4/3)*3
11) 3357=22 (7/3+5)*3
12) 3359=22 (9-5/3)*3
13) 3555=22 (5-3/5)*5
14) 3669=22 (6/9+3)*6
15) 4446=22 (6/4+4)*4
16) 4589=22 (5-9/4)*8
17) 4677=22 (4-6/7)*7
18) 5568=22 (6-8/5)*5
--=( 23 )=--
1) 1338=23 (8-1/3)*3
2) 1388=23 (3-1/8)*8
3) 1466=23 (4-1/6)*6
4) 2278=23 (8+7/2)*2
5) 2468=23 (6-2/8)*4
6) 2555=23 (5-2/5)*5
7) 2599=23 (5/9+2)*9
8) 2779=23 (9/7+2)*7
9) 2788=23 (7/8+2)*8
10) 3349=23 (9-4/3)*3
11) 3356=23 (6+5/3)*3
12) 3358=23 (8/3+5)*3
13) 3455=23 (4+3/5)*5
14) 3689=23 (9-8/6)*3
15) 4447=23 (7/4+4)*4
16) 4489=23 (8-9/4)*4
--=( 24 )=--
1) 1346=24 6/(1-3/4)
2) 1456=24 4/(1-5/6) 6/(5/4-1)
3) 1555=24 (5-1/5)*5
4) 1668=24 6/(1-6/8)
5) 3377=24 (3/7+3)*7
6) 3388=24 8/(3-8/3)
7) 4477=24 (4-4/7)*7
--=( 25 )=--
1) 1338=25 (8+1/3)*3
2) 1388=25 (3+1/8)*8
3) 1446=25 (6+1/4)*4
4) 1466=25 (4+1/6)*6
5) 2289=25 (9/2+8)*2
6) 2339=25 (9-2/3)*3
7) 2468=25 (6+2/8)*4
8) 2799=25 (7/9+2)*9
9) 2889=25 (9/8+2)*8
10) 3347=25 (7+4/3)*3
11) 3367=25 (7/3+6)*3
12) 3447=25 (7-3/4)*4
13) 3477=25 (4-3/7)*7 (4/7+3)*7
14) 4449=25 (9/4+4)*4
15) 4478=25 (8-7/4)*4
--=( 26 )=--
1) 1339=26 (9-1/3)*3
2) 1348=26 (3+1/4)*8
3) 1489=26 (9/4+1)*8
4) 1555=26 (5+1/5)*5
5) 2369=26 (9-2/6)*3
6) 2477=26 (4-2/7)*7
7) 2899=26 (8/9+2)*9
8) 3346=26 (4/3+3)*6
9) 3448=26 (4-3/4)*8
10) 3566=26 (6-5/3)*6
11) 3577=26 (5/7+3)*7
12) 4456=26 (6/4+5)*4
13) 4556=26 (6-4/5)*5 (6/5+4)*5
14) 4566=26 (5-4/6)*6
15) 4569=26 (9/6+5)*4
16) 4578=26 (5-7/4)*8
17) 5779=26 (5-9/7)*7
--=( 27 )=--
1) 1349=27 9/(4/3-1)
2) 1477=27 (4-1/7)*7
3) 2256=27 (5/2+2)*6
4) 2359=27 9/(2-5/3)
5) 2446=27 (4+2/4)*6
6) 2555=27 (5+2/5)*5
7) 3388=27 (3/8+3)*8
8) 3446=27 (6+3/4)*4
9) 3677=27 (6/7+3)*7
10) 4458=27 (8-5/4)*4
11) 4468=27 (4/8+4)*6
12) 4499=27 (9-9/4)*4
13) 4666=27 (6-6/4)*6
14) 4668=27 (6/8+6)*4
15) 5578=27 (7-8/5)*5
--=( 28 )=--
1) 1238=28 (3+1/2)*8
2) 1339=28 (9+1/3)*3
3) 1467=28 4/(1-6/7)
4) 1789=28 8/(9/7-1)
5) 2358=28 (5-3/2)*8
6) 2369=28 (9+2/6)*3
7) 2778=28 (7-7/2)*8
8) 3356=28 (5/3+3)*6
9) 3377=28 (7/3+7)*3
10) 3555=28 (5+3/5)*5
11) 3688=28 (8/6+8)*3
12) 4669=28 (6/9+4)*6
13) 5577=28 (7-7/5)*5
14) 6668=28 (6-8/6)*6
--=( 29 )=--
1) 1447=29 (7+1/4)*4
2) 1477=29 (4+1/7)*7
3) 2339=29 (9+2/3)*3
4) 2478=29 (7+2/8)*4
5) 3358=29 (8+5/3)*3
6) 3448=29 (8-3/4)*4
7) 3778=29 (8/7+3)*7
8) 4479=29 (9-7/4)*4
9) 4555=29 (5+4/5)*5
10) 4559=29 (9/5+4)*5
11) 4566=29 (5/6+4)*6
12) 4688=29 (8-6/8)*4
13) 5567=29 (7-6/5)*5
14) 6667=29 (6-7/6)*6
--=( 30 )=--
1) 1448=30 (4-1/4)*8
2) 2477=30 (4+2/7)*7
3) 3348=30 (3/4+3)*8
4) 4469=30 (4-4/6)*9 (9-6/4)*4
5) 4558=30 (5-5/4)*8
--=( 31 )=--
1) 1448=31 (8-1/4)*4
2) 2488=31 (8-2/8)*4
3) 3349=31 (9+4/3)*3
4) 3378=31 (8+7/3)*3
5) 3477=31 (4+3/7)*7
6) 3689=31 (9+8/6)*3
7) 3788=31 (7/8+3)*8
8) 4467=31 (7/4+6)*4
9) 4557=31 (7-4/5)*5
10) 4577=31 (5-4/7)*7
11) 4599=31 (4-5/9)*9
12) 4667=31 (7/6+4)*6
13) 5589=31 (8-9/5)*5
14) 5889=31 (5-9/8)*8
--=( 32 )=--
1) 1348=32 8/(1-3/4)
2) 2366=32 (6-2/3)*6
3) 2566=32 (5+2/6)*6
4) 3359=32 (9+5/3)*3
5) 3367=32 (7/3+3)*6
6) 3388=32 (8/3+8)*3
7) 3557=32 (7-3/5)*5
8) 3577=32 (5-3/7)*7
9) 4477=32 (4/7+4)*7
10) 4499=32 (4-4/9)*9
11) 4666=32 (6-4/6)*6
12) 5557=32 (7/5+5)*5
13) 5588=32 (8-8/5)*5
14) 6669=32 (6-6/9)*6
--=( 33 )=--
1) 1448=33 (8+1/4)*4
2) 2267=33 (7/2+2)*6
3) 2356=33 (5/2+3)*6
4) 2456=33 (5+2/4)*6
5) 2466=33 (6-2/4)*6
6) 2488=33 (8+2/8)*4
7) 2557=33 (7-2/5)*5
8) 2679=33 (9-7/2)*6
9) 3556=33 (6+3/5)*5
10) 3889=33 (9/8+3)*8
11) 4466=33 (6/4+4)*6
12) 4469=33 (9/4+6)*4
13) 4577=33 (5/7+4)*7
14) 4669=33 (9/6+4)*6
15) 5558=33 (8/5+5)*5
16) 5578=33 (8-7/5)*5
17) 5788=33 (5-7/8)*8
18) 6679=33 (7-9/6)*6
19) 6779=33 (6-9/7)*7
--=( 34 )=--
1) 1448=34 (4+1/4)*8
2) 1557=34 (7-1/5)*5
3) 1577=34 (5-1/7)*7
4) 2356=34 (5+2/3)*6
5) 2499=34 (4-2/9)*9
6) 2666=34 (6-2/6)*6
7) 3368=34 (8/3+3)*6
8) 3379=34 (9+7/3)*3
9) 3456=34 (5/3+4)*6
10) 3669=34 (6-3/9)*6
11) 3678=34 (8-7/3)*6
12) 4566=34 (5+4/6)*6
13) 4677=34 (6/7+4)*7
14) 4679=34 (9/6+7)*4
15) 5559=34 (9/5+5)*5
16) 5568=34 (8-6/5)*5
17) 5669=34 (6/9+5)*6
18) 6678=34 (7-8/6)*6
--=( 35 )=--
1) 1449=35 (9-1/4)*4
2) 1457=35 7/(1-4/5)
3) 1499=35 (4-1/9)*9
4) 1567=35 5/(1-6/7) 7/(6/5-1)
5) 1578=35 5/(8/7-1)
6) 1666=35 (6-1/6)*6
7) 2489=35 (9-2/8)*4
8) 3389=35 (9+8/3)*3
9) 3448=35 (8+3/4)*4
10) 4477=35 (7/4+7)*4
11) 4688=35 (8+6/8)*4
12) 5588=35 (5-5/8)*8
--=( 36 )=--
1) 1557=36 (7+1/5)*5
2) 1577=36 (5+1/7)*7
3) 1689=36 9/(1-6/8)
4) 1789=36 8/(1-7/9)
5) 2578=36 (7-5/2)*8
6) 2899=36 (9-9/2)*8
7) 5599=36 (9-9/5)*5
--=( 37 )=--
1) 1449=37 (9+1/4)*4
2) 1499=37 (4+1/9)*9
3) 1666=37 (6+1/6)*6
4) 2489=37 (9+2/8)*4
5) 2557=37 (7+2/5)*5
6) 2577=37 (5+2/7)*7
7) 3558=37 (8-3/5)*5
8) 4458=37 (8+5/4)*4
9) 4479=37 (9/4+7)*4
10) 5567=37 (7/5+6)*5
11) 5667=37 (7-5/6)*6 (7/6+5)*6
12) 5677=37 (6-5/7)*7
13) 5899=37 (5-8/9)*9
--=( 38 )=--
1) 2367=38 (7-2/3)*6
2) 2499=38 (4+2/9)*9
3) 2558=38 (8-2/5)*5
4) 2666=38 (6+2/6)*6
5) 3448=38 (4+3/4)*8
6) 3467=38 (7/3+4)*6
7) 3478=38 (7/4+3)*8
8) 3557=38 (7+3/5)*5
9) 3577=38 (5+3/7)*7
10) 3669=38 (6+3/9)*6
11) 3689=38 (9-8/3)*6
12) 4468=38 (8+6/4)*4
13) 4667=38 (7-4/6)*6
14) 4789=38 (7-9/4)*8
15) 5668=38 (8/6+5)*6
16) 5799=38 (5-7/9)*9
--=( 39 )=--
1) 1558=39 (8-1/5)*5
2) 1588=39 (5-1/8)*8
3) 2269=39 (9/2+2)*6
4) 2367=39 (7/2+3)*6
5) 2456=39 (5/2+4)*6
6) 2466=39 (6+2/4)*6
7) 2569=39 (9-5/2)*6
8) 3677=39 (6-3/7)*7
9) 4478=39 (8+7/4)*4
10) 4557=39 (7+4/5)*5
11) 4566=39 (6/4+5)*6
12) 4569=39 (5-4/6)*9
13) 4577=39 (5+4/7)*7
14) 4668=39 (6+4/8)*6 (8-6/4)*6
15) 4689=39 (9+6/8)*4
16) 5569=39 (9-6/5)*5 (9/5+6)*5
17) 5669=39 (9/6+5)*6
18) 5699=39 (5-6/9)*9
19) 6689=39 (8-9/6)*6
20) 6889=39 (6-9/8)*8
--=( 40 )=--
1) 1458=40 8/(1-4/5)
2) 1568=40 8/(6/5-1)
3) 1578=40 5/(1-7/8)
4) 2366=40 (6+2/3)*6
5) 2667=40 (7-2/6)*6
6) 4499=40 (4/9+4)*9
7) 4666=40 (6+4/6)*6
8) 5577=40 (5/7+5)*7
9) 5599=40 (5-5/9)*9
10) 6669=40 (6/9+6)*6
11) 6688=40 (8-8/6)*6
12) 7779=40 (7-9/7)*7
--=( 41 )=--
1) 1558=41 (8+1/5)*5
2) 1588=41 (5+1/8)*8
3) 4459=41 (9+5/4)*4
4) 4489=41 (9/4+8)*4
5) 4559=41 (9-4/5)*5
6) 4599=41 (5-4/9)*9 (5/9+4)*9
7) 5666=41 (6+5/6)*6
8) 5677=41 (6/7+5)*7
9) 6678=41 (8-7/6)*6
10) 7778=41 (7-8/7)*7
--=( 42 )=--
1) 1458=42 (5+1/4)*8
2) 3489=42 (9/4+3)*8
3) 3559=42 (9-3/5)*5
4) 4458=42 (5/4+4)*8
5) 4778=42 (7-7/4)*8
--=( 43 )=--
1) 3558=43 (8+3/5)*5
2) 4479=43 (9+7/4)*4
3) 4799=43 (7/9+4)*9
4) 5578=43 (8/5+7)*5
5) 5668=43 (8-5/6)*6
6) 5688=43 (6-5/8)*8
7) 5778=43 (8/7+5)*7
--=( 44 )=--
1) 1258=44 (5+1/2)*8
2) 1289=44 (9/2+1)*8
3) 1559=44 (9-1/5)*5
4) 1599=44 (5-1/9)*9
5) 2358=44 (5/2+3)*8
6) 2378=44 (7-3/2)*8
7) 2667=44 (7+2/6)*6
8) 2677=44 (6+2/7)*7
9) 2789=44 (9-7/2)*8
10) 3466=44 (6+4/3)*6
11) 3568=44 (5+3/6)*8
12) 3569=44 (9-5/3)*6
13) 4468=44 (6/4+4)*8
14) 4558=44 (8+4/5)*5
15) 4899=44 (8/9+4)*9
16) 5579=44 (9/5+7)*5
17) 5777=44 (7-5/7)*7
18) 6668=44 (8/6+6)*6
19) 6689=44 (8-6/9)*6
20) 6789=44 (7-9/6)*8
--=( 45 )=--
1) 1589=45 5/(1-8/9)
2) 2467=45 (7+2/4)*6 (7/2+4)*6
3) 2468=45 (8-2/4)*6
4) 3677=45 (6+3/7)*7
5) 3688=45 (6-3/8)*8
6) 4499=45 (9/4+9)*4
7) 4666=45 (6/4+6)*6
8) 4688=45 (8-4/8)*6
9) 4777=45 (7-4/7)*7
10) 5588=45 (5/8+5)*8
--=( 46 )=--
1) 1559=46 (9+1/5)*5
2) 1599=46 (5+1/9)*9
3) 2367=46 (7+2/3)*6
4) 2688=46 (6-2/8)*8
5) 3458=46 (5+3/4)*8
6) 3469=46 (9-4/3)*6
7) 3566=46 (6+5/3)*6
8) 3689=46 (8-3/9)*6
9) 3777=46 (7-3/7)*7
10) 4478=46 (7/4+4)*8
11) 4578=46 (7-5/4)*8
12) 4677=46 (6+4/7)*7
13) 4889=46 (8-9/4)*8
14) 5568=46 (8+6/5)*5
15) 6679=46 (7+6/9)*6
16) 6689=46 (9-8/6)*6
17) 6899=46 (6-8/9)*9
--=( 47 )=--
1) 1668=47 (8-1/6)*6
2) 1688=47 (6-1/8)*8
3) 2559=47 (9+2/5)*5
4) 2599=47 (5+2/9)*9
5) 2777=47 (7-2/7)*7
6) 5578=47 (8+7/5)*5
7) 5677=47 (6+5/7)*7
8) 5788=47 (7/8+5)*8
9) 6679=47 (9-7/6)*6
10) 6799=47 (6-7/9)*9
11) 7789=47 (8-9/7)*7
--=( 48 )=--
1) 1568=48 8/(1-5/6)
2) 1678=48 6/(1-7/8) 8/(7/6-1)
3) 1689=48 6/(9/8-1)
4) 1777=48 (7-1/7)*7
5) 5588=48 (8/5+8)*5
6) 6699=48 (6-6/9)*9
--=( 49 )=--
1) 1668=49 (8+1/6)*6
2) 1688=49 (6+1/8)*8
3) 4599=49 (5+4/9)*9
4) 5589=49 (9/5+8)*5
5) 5669=49 (9-5/6)*6
6) 5699=49 (6-5/9)*9
7) 5889=49 (9/8+5)*8
--=( 50 )=--
1) 1777=50 (7+1/7)*7
2) 2369=50 (9-2/3)*6
3) 2668=50 (8+2/6)*6
4) 2688=50 (6+2/8)*8
5) 3467=50 (7+4/3)*6
6) 3478=50 (7-3/4)*8
7) 3667=50 (7/3+6)*6
8) 3689=50 (8+3/9)*6
9) 4489=50 (9/4+4)*8
10) 4669=50 (9-4/6)*6
11) 4699=50 (6-4/9)*9
12) 4788=50 (8-7/4)*8
13) 5599=50 (5/9+5)*9
14) 6678=50 (8/6+7)*6
15) 6699=50 (9-6/9)*6
16) 6778=50 (8-6/7)*7 (8/7+6)*7
17) 6788=50 (7-6/8)*8
--=( 51 )=--
1) 2468=51 (8+2/4)*6
2) 2469=51 (9-2/4)*6 (9/2+4)*6
3) 2566=51 (6+5/2)*6
4) 2777=51 (7+2/7)*7
5) 3688=51 (6+3/8)*8
6) 4569=51 (5+4/6)*9
7) 4667=51 (7+6/4)*6
8) 4688=51 (8+4/8)*6
9) 4689=51 (9-4/8)*6
10) 5778=51 (8-5/7)*7
11) 6779=51 (9/7+6)*7
12) 6789=51 (7-8/6)*9
--=( 52 )=--
1) 1278=52 (7-1/2)*8
2) 2358=52 (5+3/2)*8
3) 2378=52 (7/2+3)*8
4) 2388=52 (8-3/2)*8
5) 2589=52 (9-5/2)*8
6) 2669=52 (9-2/6)*6
7) 2699=52 (6-2/9)*9
8) 3668=52 (6+3/6)*8 (8/3+6)*6
9) 3699=52 (9-3/9)*6
10) 3777=52 (7+3/7)*7
11) 4778=52 (8-4/7)*7
12) 5579=52 (9+7/5)*5
13) 5799=52 (7/9+5)*9
14) 6889=52 (8-9/6)*8
--=( 53 )=--
1) 1669=53 (9-1/6)*6
2) 1699=53 (6-1/9)*9
3) 3778=53 (8-3/7)*7
4) 4777=53 (7+4/7)*7
5) 5589=53 (9+8/5)*5
6) 5668=53 (8+5/6)*6
7) 5899=53 (8/9+5)*9
--=( 54 )=--
1) 1478=54 (7-1/4)*8
2) 1569=54 9/(1-5/6)
3) 1679=54 9/(7/6-1)
4) 1689=54 6/(1-8/9)
5) 2778=54 (8-2/7)*7
6) 2788=54 (7-2/8)*8
7) 4578=54 (7/4+5)*8
8) 4588=54 (8-5/4)*8
9) 4899=54 (9-9/4)*8
10) 5599=54 (9/5+9)*5
11) 5777=54 (7+5/7)*7
12) 6688=54 (6/8+6)*8
13) 7799=54 (9-9/7)*7
--=( 55 )=--
1) 1669=55 (9+1/6)*6
2) 1699=55 (6+1/9)*9
3) 6777=55 (7+6/7)*7
4) 6788=55 (7/8+6)*8
5) 7789=55 (9-8/7)*7
6) 8889=55 (8-9/8)*8
--=( 56 )=--
1) 2669=56 (9+2/6)*6
2) 2699=56 (6+2/9)*9
3) 3699=56 (9+3/9)*6
--=( 57 )=--
1) 2567=57 (7+5/2)*6
2) 2667=57 (7/2+6)*6
3) 4668=57 (8+6/4)*6
4) 4689=57 (9+4/8)*6
5) 6689=57 (9/6+8)*6
6) 6779=57 (9-6/7)*7
7) 6799=57 (7-6/9)*9
8) 6889=57 (9/8+6)*8
--=( 58 )=--
1) 1478=58 (7+1/4)*8
2) 2369=58 (9+2/3)*6
3) 2778=58 (8+2/7)*7
4) 2788=58 (7+2/8)*8
5) 3488=58 (8-3/4)*8
6) 4589=58 (9/4+5)*8
7) 4669=58 (9+4/6)*6
8) 4699=58 (6+4/9)*9
9) 4789=58 (9-7/4)*8
10) 5779=58 (9-5/7)*7
11) 5799=58 (7-5/9)*9
12) 6699=58 (9+6/9)*6
13) 6888=58 (8-6/8)*8
14) 7779=58 (9/7+7)*7
--=( 59 )=--
1) 3778=59 (8+3/7)*7
2) 3788=59 (7+3/8)*8
3) 4779=59 (9-4/7)*7
4) 4799=59 (7-4/9)*9
5) 5669=59 (9+5/6)*6
6) 5699=59 (6+5/9)*9
7) 5888=59 (8-5/8)*8
--=( 60 )=--
1) 1288=60 (8-1/2)*8
2) 2488=60 (8-2/4)*8
3) 3678=60 (7+3/6)*8
4) 3688=60 (8-3/6)*8
5) 3779=60 (9-3/7)*7
6) 4778=60 (8+4/7)*7
7) 6699=60 (6/9+6)*9
--=( 61 )=--
1) 2779=61 (9-2/7)*7
2) 2799=61 (7-2/9)*9
3) 3888=61 (8-3/8)*8
4) 5778=61 (8+5/7)*7
5) 5788=61 (7+5/8)*8
6) 6679=61 (9+7/6)*6
7) 6799=61 (7/9+6)*9
--=( 62 )=--
1) 1488=62 (8-1/4)*8
2) 1779=62 (9-1/7)*7
3) 1799=62 (7-1/9)*9
4) 2888=62 (8-2/8)*8
5) 3469=62 (9+4/3)*6
6) 3478=62 (7+3/4)*8
7) 3678=62 (8+7/3)*6
8) 4589=62 (9-5/4)*8
9) 6689=62 (9+8/6)*6
10) 6788=62 (7+6/8)*8
11) 6899=62 (8/9+6)*9
--=( 63 )=--
1) 1679=63 9/(1-6/7)
2) 1789=63 7/(1-8/9) 9/(8/7-1)
3) 1888=63 (8-1/8)*8
4) 2568=63 (8+5/2)*6
5) 4669=63 (9+6/4)*6
6) 6699=63 (9/6+9)*6
--=( 64 )=--
1) 1779=64 (9+1/7)*7
2) 1799=64 (7+1/9)*9
3) 3569=64 (9+5/3)*6
--=( 65 )=--
1) 1888=65 (8+1/8)*8
2) 2779=65 (9+2/7)*7
3) 2799=65 (7+2/9)*9
4) 7789=65 (9/7+8)*7
5) 7889=65 (9-7/8)*8 (9/8+7)*8
6) 7899=65 (8-7/9)*9
--=( 66 )=--
1) 1488=66 (8+1/4)*8
2) 2888=66 (8+2/8)*8
3) 3489=66 (9-3/4)*8
4) 3779=66 (9+3/7)*7
5) 4578=66 (7+5/4)*8
6) 6889=66 (9-6/8)*8
--=( 67 )=--
1) 3888=67 (8+3/8)*8
2) 4779=67 (9+4/7)*7
3) 4799=67 (7+4/9)*9
4) 5889=67 (9-5/8)*8
5) 5899=67 (8-5/9)*9
--=( 68 )=--
1) 1288=68 (8+1/2)*8
2) 1289=68 (9-1/2)*8
3) 2378=68 (7+3/2)*8
4) 2488=68 (8+2/4)*8
5) 2489=68 (9-2/4)*8 (9/2+4)*8
6) 2578=68 (7/2+5)*8
7) 3679=68 (9+7/3)*6
8) 3688=68 (8+3/6)*8
9) 3689=68 (9-3/6)*8
10) 4678=68 (7+6/4)*8
11) 4899=68 (8-4/9)*9
12) 5779=68 (9+5/7)*7
13) 5799=68 (7+5/9)*9
14) 6789=68 (9/6+7)*8

回答2:

1
5
5
5
除了(5-1/5)*5外
还有别的算法吗
还有3
3
7
7
(3+3/7)*7
反正我算不出另一种

回答3:

(7-(-5)*13)/3=24
(7-((-5)*13))/3=24
(7-13*(-5))/3=24
(7-(13*(-5)))/3=24
希望能对您有帮助!!
13
回答者

回答4:

[-5×(-13)+7]÷3=24

回答5:

1:
[(-5)
×
(-13)
+
7]
÷
3

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