一个游泳池长50米 ,小明游了4个来回,一共游了多少米?(两种方法解).G*O-u,l(T-_.c1L
算式:提示9P7K1V4~,_7h9[5F9m7~)i)X/j;x8a2n0L.G*O-u,l(T-_.c1L
答:一共游了5o4I6W/\5V6?'J4I米。.G*O-u,l(T-_.c1L