连加、连减,小学二年级数学上册 第二单元,283423,85（个）,283423,85 (个),1,2 8, 3 4,6,8, 2 3,2,5,做一做,462517,88,1,4 6, 2 5,7,8, 1,1,8,7,做一做,542016,90,1,5 4, 2 0,7,9, 1,4,0,6,854026,19(个),8 5, 4 0,4,1, 2 6,5,9,还可以这样算：,一共运走的个数为：,4026,66（个）,还剩的个数为：,8566,19（个）,做一做,905824,8,9 0, 5 8,3, 2,2,8,4,做一做,752819,7 5, 2 8,4,2, 1,7,8,28,9,
