6、7的认识,和加减法,人教新课标一年级数学上册,6,7,6,7,1,2,3,4,5,6,7,5,6,7,左数第6瓶有 条,左数第6瓶有 条 。,有6条 的是第 瓶。,左数第6瓶有 条 。,有6条 的是第 瓶。,第7瓶有 条 。,画一画，分一分。,6,5,1,6,4,2,6,3,3,6,2,4,6,1,5,7个 分成两堆，有几种分法？,7,6,1,7,5,2,7,2,5,7,4,3,7,3,4,7,6,1,5,+,1,=,6,5,+,1,=,6,1,+,5,=,6,3,4,7,4,3,7,7,-,1,=,6,7,-,1,=,6,7,-,6,=,1,6,1,5,6,5,1,7,3,4,7,4,3,
