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,*,摆一摆 想一想,摆一摆 想一想,十位,个位,现在我表示几？,十位,个位,现在我表示几？,十 位,个 位,数,1,1,个 可以摆成,:,十 位,个 位,数,1,10,1,个 可以摆成,:,友情提示,1,、只用,4,颗棋子，在数位表上摆数。,2,、摆出一个数读出来，并写在本子上。,3,、完成后,与同桌说说你变了几个数,?,你是怎么摆的，比一比谁摆的数多,摆的方法最好。,十 位,个 位,摆出的数,4,13,22,31,40,4,个 可以摆成：,棋子个数,数的个数,摆出的数,2,5,1,2,3,4,5,6,1,、,10,2,、,11,、,20,3,、,12,、,21,、,30,4,、,13,、,22,、,31,、,40,5,、,14,、,23,、,32,、,41,、,50,6,、,15,、,24,、,33,、,42,、,51,、,60,3,4,6,7,棋子个数,数的个数,摆出的数,1,2,3,4,5,6,7,8,9,2,3,4,5,6,7,8,9,10,1,、,10,2,、,11,、,20,3,、,12,、,21,、,30,4,、,13,、,22,、,31,、,40,5,、,14,、,23,、,32,、,41,、,50,6,、,15,、,24,、,33,、,42,、,51,、,60,7,、,16,、,25,、,34,、,43,、,52,、,61,、,70,8,、,17,、,26,、,35,、,44,、,53,、,62,、,71,、,80,9,、,18,、,27,、,36,、,45,、,54,、,63,、,72,、,81,、,90,棋子颗数,摆出几种数,摆,出的数,1,2,1,、,10,2,3,2,、,11,、,20,3,4,3,、,12,、,21,、,30,4,5,4,、,13,、,22,、,31,、,40,5,6,5,、,14,、,23,、,32,、,41,、,50,6,7,6,、,15,、,24,、,33,、,42,、,51,、,60,7,8,7,、,16,、,25,、,34,、,43,、,52,、,61,、,70,8,9,8,、,17,、,26,、,35,、,44,、,53,、,62,、,71,、,80,9,10,9,、,18,、,27,、,36,、,45,、,54,、,63,、,72,、,81,、,90,今天我们一共摆了（ ）个数字，告诉你可以用,9,颗棋子摆出来。,棋子个数,数的个数,摆出的数,1,2,2,3,3,4,5,6,7,8,9,4,5,6,7,8,9,10,1,、,10,2,、,11,、,20,3,、,12,、,21,、,30,4,、,13,、,22,、,31,、,40,5,、,14,、,23,、,32,、,41,、,50,6,、,15,、,24,、,33,、,42,、,51,、,60,7,、,16,、,25,、,34,、,43,、,52,、,61,、,70,8,、,17,、,26,、,35,、,44,、,53,、,62,、,71,、,80,9,、,18,、,27,、,36,、,45,、,54,、,63,、,72,、,81,、,90,一共有,54,个数字。,6,颗,棋子可以摆：,6,、,24,、,15,、,34,、,42,、,51,、,33,、,60,34,7,吴老师的年龄正 好是一个可以用,6,颗棋子摆出的数，你猜我可能是几岁？,我今年,33,岁。,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,
展开阅读全文