76 87 56 98 80
回答 (5)
2007-02-24 7:23 pm
(76+87+56+98+80)/5
=79.4.......
=79.4.......
2007-02-24 6:16 pm
76 87 56 98 80
76+5 87 56 98 80-5
81 87 56 98 75
81 87 56+20 98-20 75
81 87 76 78 75
81-1 87-7 76+4 78 75+4
80 80 80 78 79
80 80 80-1 79 78+1
80 80 79 79 79
=75.()
(76 +87 +56 +98 +80)/4
=75.4
76+5 87 56 98 80-5
81 87 56 98 75
81 87 56+20 98-20 75
81 87 76 78 75
81-1 87-7 76+4 78 75+4
80 80 80 78 79
80 80 80-1 79 78+1
80 80 79 79 79
=75.()
(76 +87 +56 +98 +80)/4
=75.4
2007-02-24 6:08 pm
(76+87+56+98+80)/5
=397/5
=79.4
=397/5
=79.4
2007-02-24 6:04 pm
(76+87+56+98+80)/5
= 79.4
= 79.4
收錄日期: 2021-04-13 16:48:01
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070224000051KK01003