一年级下册数学数一数课件

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,*,数一数,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,100以内的数,可以怎么数？,一个一个数,两个两个数,五个五个数,十个十个数,1,2,3,4,?,6,7,8,9,?,11,12,13,14,?,16,17,18,19,?,21,22,23,24,26,27,28,29,31,32,33,34,36,37,38,39,41,42,43,44,46,47,48,49,51,52,53,54,56,57,58,59,61,62,63,64,66,67,68,69,71,72,73,74,76,77,78,79,81,82,83,84,86,87,88,89,91,92,93,94,96,97,98,99,五个五个数,1,2,3,4,5,6,7,8,9,?,11,12,13,14,15,16,17,18,19,?,21,22,23,24,25,26,27,28,29,?,31,32,33,34,35,36,37,38,39,41,42,43,44,45,46,47,48,49,51,52,53,54,55,56,57,58,59,61,62,63,64,65,66,67,68,69,71,72,73,74,75,76,77,78,79,81,82,83,84,85,86,87,88,89,91,92,93,94,95,96,97,98,99,十个十个数,九十一、九十二九十八、九十九，再数 根是一百根,1,也可以这样数,10根一捆，1个十、2个十9个十、10个十。,10个十是,100,小朋友能数出有多少小方块吗？,我们把10个小方块组成一条,九十九再添一个就是一百个。,10个十是一百。,北师大版一年级下册数学全册PPT课件,圈一圈，数一数,45,37,圈一圈，数一数，有多少根小棒？,58,56,圈一圈，数一数，有多少个鸡蛋？,59,数一数，再添多少就成100了？,9,12,读一读，说一说,练一练,找规律,2,4,8,12,5,15,20,80,70,40,