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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,需要几个轮子,北师大版二年级数学上册,1/12,2/12,3/12,有几辆车,1,2,3,4,5,6,7,8,9,有几个轮子,3,6,9,15,18,21,24,27,12,4/12,13=3,一三得三,23=6,二三得六,33=9,三三得九,34=12,三四十二,35=15,三五十五,36=18,三六十八,37=21,三七二十一,38=24,三八二十四,39=27,三九二十七,5/12,6/12,7/12,3.,找规律,填一填。,10,15,20,18,16,14,9,12,15,25,30,12,10,27,24,21,18,21,18,15,8/12,5,3,3,7,21,15,3,3,8,3,3,2,6,3,小兔子回家,6,18,9,24,9/12,一枝铅笔,3,角钱,3,枝这么笔多少钱,?,3,3,9,(角),10/12,小蜗牛找家,3,4,2,8,6,5,16,30,12,11/12,1,9,=,5,4,=,5,3=,9,3,=,7,2=,9,20,15,27,14,12/12,
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