有2个问题请教大家

piyue61

1。a bag of 216 caramels is divided equally     among of a group of children, if 6 children were added to the group, each child would receive 3 fewer caramels, how man children are currently in the group?


2。unit digit 是什么意思

橙子

以下是引用piyue61在2004-3-17 20:11:00的发言：
1。a bag of 216 caramels is divided equally     among of a group of children, if 6 children were added to the group, each child would receive 3 fewer caramels, how man children are currently in the group?




设现有X个小孩,所以216/X-3=216/(X+6)-->X=18

2。unit digit 是什么意思
个位数字