ya ... right answer is
. ~3 L3 r. r1 A/ n" h& G' ka)$60-$55=賺左$5
3 v- C Q+ C# j- i& w8 \tvb now,tvbnow,bttvb: [, c. i+ k) Y7 ~0 c. G- o
b)$60-$62=花多左$25.39.217.760 w m7 H9 J9 m2 }2 ?& }$ D( V
B* Q, D+ q. g( i; Sc)$68-$62=賺左$6公仔箱論壇' f& I& V( y/ a5 Y8 j \, O: w
, h* l8 y. E- B3 G
所以:$5-$2+$6=$9 |