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1、百数表,沪教版一年级数学下册,学习目标: 1. 使同学们能够熟练掌握百数表。 2. 能够根据几行几列写出百数表中的数字。,1,23,34,45,56,67,78,89,100,11,22,33,44,55,99,66,77,88,12,23,33,53,63,23,25,26,27,12,12在第( )行第( )列,2,2,35,35在第( )行第( )列,4,5,猜猜它是几?,学数表背口诀,行是横、列是竖; 行是十位,列是个; 遇到行,要减1; 遇到列,它不变; 第十列,行不变。,28,47,45,53,39,25,填一填,28,37,38,24,26,15,35,67,66,56,76,6
2、8,58,78,67,57,56,76,77,58,78,填一填、画一画,1,2,3,4,5,7,9,10,6,8,11,13,15,17,19,12,14,16,18,20,21,23,25,27,29,22,24,26,28,30,31,33,35,37,39,32,34,36,38,40,41,43,45,47,49,42,44,46,48,50,51,53,55,57,59,52,54,56,58,60,61,63,65,67,69,62,64,66,68,70,71,73,75,77,79,72,74,76,78,80,81,83,85,87,89,82,84,86,88,90,91,93,95,97,99,92,94,96,98,100,0,0,0,0,行是横、列是竖; 行是十位,列是个; 遇到行,要减1; 遇到列,它不变; 第十列,行不变。,学数表背口诀,