數學IQ題很難

2007-06-26 7:14 am
要把1至9這9個數字填入下列的三位數加法直式, 令到直式正確, 而且每個數字只可以
填一次。

     ________ ________ ________



+     _________ __________ __________


     --------------------------------------------------------------------


     ___________ ______  ______

回答 (2)

2007-06-26 7:31 am
✔ 最佳答案
1 2 9
+ 3 5 7
________
4 8 6
2007-06-26 5:53 pm
There are 336 solutions, which is 8 P 3, which is 8*7*6

I can email this to you if you want, but here is a copy anyway:
124+659=783 1
125+739=864 2
127+359=486 3
127+368=495 4
128+367=495 5
128+439=567 6
129+357=486 7
129+438=567 8
129+654=783 9
129+735=864 10
134+658=792 11
135+729=864 12
138+429=567 13
138+654=792 14
139+428=567 15
139+725=864 16
142+596=738 17
142+695=837 18
143+586=729 19
145+692=837 20
146+583=729 21
146+592=738 22
152+487=639 23
152+784=936 24
154+629=783 25
154+638=792 26
154+782=936 27
157+329=486 28
157+482=639 29
158+634=792 30
159+327=486 31
159+624=783 32
162+387=549 33
162+783=945 34
163+782=945 35
167+328=495 36
167+382=549 37
168+327=495 38
173+286=459 39
173+295=468 40
175+293=468 41
176+283=459 42
182+367=549 43
182+394=576 44
182+457=639 45
182+493=675 46
182+754=936 47
182+763=945 48
183+276=459 49
183+492=675 50
183+546=729 51
183+762=945 52
184+392=576 53
184+752=936 54
186+273=459 55
186+543=729 56
187+362=549 57
187+452=639 58
192+384=576 59
192+483=675 60
192+546=738 61
192+645=837 62
193+275=468 63
193+482=675 64
194+382=576 65
195+273=468 66
195+642=837 67
196+542=738 68
214+569=783 69
214+659=873 70
215+478=693 71
215+748=963 72
216+378=594 73
216+738=954 74
218+349=567 75
218+376=594 76
218+439=657 77
218+475=693 78
218+736=954 79
218+745=963 80
219+348=567 81
219+438=657 82
219+564=783 83
219+654=873 84
234+657=891 85
235+746=981 86
236+718=954 87
236+745=981 88
237+654=891 89
238+419=657 90
238+716=954 91
239+418=657 92
241+596=837 93
243+576=819 94
243+675=918 95
245+673=918 96
245+718=963 97
245+736=981 98
246+573=819 99
246+591=837 100


2007-06-26 09:55:10 補充:
246+735=981 101248+319=567 102248+715=963 103249+318=567 104251+397=648 105254+619=873 106254+637=891 107257+391=648 108257+634=891 109259+614=873 110

2007-06-26 09:55:35 補充:
264+519=783 111269+514=783 112271+593=864 113271+683=954 114273+186=459 115273+195=468 116273+546=819 117273+591=864 118273+645=918 119273+681=954 120

2007-06-26 09:56:09 補充:
275 193=468 121275 418=693 122275 643=918 123276 183=459 124276 318=594 125276 543=819 126278 316=594 127278 415=693 128281 394=675 129281 673=954 130

2007-06-26 09:56:25 補充:
283 176=459 131283 671=954 132284 391=675 133286 173=459 134291 357=648 135291 384=675 136291 546=837 137291 573=864 138293 175=468 139293 571=864 140

2007-06-26 09:56:44 補充:
294 381=675 141295 173=468 142296 541=837 143297 351=648 144314 658=972 145316 278=594 146317 529=846 147317 628=945 148318 249=567 149318 276=594 150

2007-06-26 09:56:59 補充:
318 627=945 151318 654=972 152319 248=567 153319 527=846 154324 567=891 155324 657=981 156327 159=486 157327 168=495 158327 519=846 159327 564=891 160


收錄日期: 2021-04-12 21:56:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070625000051KK05122

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