[1]
6 - [ - 4 - ( 13 + 8 ) ]
[2]
( 負10又二分之一 ) ( 負五又三分之一 )
---------------------------------------------------------
( 負三又分二之一 )
中一有向數一問
2011-10-09 6:46 am
回答 (2)
2011-10-09 7:24 am
✔ 最佳答案
圖片參考：http://i1096.photobucket.com/albums/g340/pingshek/2011-10-8.png?t=
http://i1096.photobucket.com/albums/g340/pingshek/2011-10-8.png?t=
參考: miraco
2011-10-09 6:31 pm
[1]
6 - [ - 4 - ( 13 + 8 ) ]
=6-[-4-(21)]
=6-(-4-21)
=6-(-25)
=6+25
=31
[2]
( -10又1/2 ) ( -5又1/3 )
---------------------------------------------------------
( -3又1/2)
56
= -------------
( -3又1/2)
=-16
6 - [ - 4 - ( 13 + 8 ) ]
=6-[-4-(21)]
=6-(-4-21)
=6-(-25)
=6+25
=31
[2]
( -10又1/2 ) ( -5又1/3 )
---------------------------------------------------------
( -3又1/2)
56
= -------------
( -3又1/2)
=-16
參考: Tracy
收錄日期: 2021-05-03 20:23:51
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111008000051KK01090