目录第1讲整数计算综合.........................................................................................................................................1第2讲和差倍问题（三）.........................................................................................................................................9内容概述..........................................................................................................................................................................9典型问题..........................................................................................................................................................................9第3讲还原问题与年龄问题....................................................................................................................................17内容概述........................................................................................................................................................................17典型问题........................................................................................................................................................................17第4讲数阵图初步.......................................................................................................................................24内容概述........................................................................................................................................................................24典型问题........................................................................................................................................................................24第5讲竖式问题.......................................................................................................................................32内容概述.................................................................................................................................................
