资源描述
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,hyxxll,hyxxll,hyxxll,做1辆车要3个轮子.,hyxxll,做9辆车需要多少个轮子?,hyxxll,三轮车辆数,1,2,3,4,5,6,7,8,9,轮子个数,3,6,9,12,15,18,21,24,27,hyxxll,31=3,32=6,33=9,34=12,35=15,36=18,37=21,38=24,39=27,hyxxll,你能编出这些口诀吗？,hyxxll,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,hyxxll,5,3,3,7,21,15,3,3,8,3,3,2,6,3,小兔子回家,6,18,9,24,hyxxll,hyxxll,小蜗牛找家,3,4,2,8,6,5,16,30,12,hyxxll,1,9,=,5,4,=,5,3=,9,3,=,7,2=,9,20,15,27,14,hyxxll,找规律,填一填。,10,15,20,25,30,9,12,15,18,21,hyxxll,51,24,37,65,82,93,连一连,15,42,39,56,28,73,一五得五,五六三十,二八十六,三九二十七,三七二十一,二四得八,hyxxll,一枝铅笔3角钱,3枝这样的笔多少钱?,3,3,9,（角）,hyxxll,制作：黄静,谢谢,hyxxll,
展开阅读全文