ya ... right answer is
- I! j: ~8 B( ]! ftvb now,tvbnow,bttvba)$60-$55=賺左$5
+ p9 L* }$ u+ i9 X7 Z6 X0 _. h" Rtvb now,tvbnow,bttvb公仔箱論壇# r c/ h7 |$ Y' Y u9 D
b)$60-$62=花多左$2tvb now,tvbnow,bttvb- x& ]3 q( G7 u$ y. V" L
+ r" k" y% o% t, m# q: H5 Ac)$68-$62=賺左$6
& b: Z+ L1 I; b# \tvb now,tvbnow,bttvb5.39.217.77:8898) o% I# q9 F. o. K+ z6 O- |: X
所以:$5-$2+$6=$9 |