21+50+15=86
5 M3 G; v, }4 T7 K0 b公仔箱論壇why 86...
6 `' A7 a/ T, dTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
0 H: T, R/ c3 J8 T% @8 E( H公仔箱論壇then he giv bck his fren 50
2 u! ~" {9 R$ \: b; w4 G4 xand the shoes cost is 15
2 B0 C; Y" y7 n; R! S0 otvb now,tvbnow,bttvb
4 \% c% l( o6 ftvb now,tvbnow,bttvbso total he loss is 86...TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。6 v, J4 ^& H! _8 W$ G; H2 P9 P4 o
4 S* J6 V4 m. f/ \- }; r2 t8 C7 e$ Gwww3.tvboxnow.com[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |