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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,*,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,*,二年级数学下册(,RJ,)教学课件,第,3,课时 练习课,第,4,单元,表内除法(二),练习课,1,4,6,8,8,3,7,5,一七得七,四八三十二,六八四十八,七八五十六,八八六十四,三七二十一,七七四十九,五八四十,24,6,4,24,3,8,3.,将下列算式填在合适的,(),里。,357 426 77 728 366,(),(),(),(),(),77,728,426,366,357,4.,看一看,算一算,2,2,2,4,8,4,3,9,3,4,6,8,8,5,7,8,2,6,被除数,28,40,36,63,45,56,48,除 数,4,8,4,7,9,8,8,商,7,5,9,9,5,7,6,8,7,5,9,9,7,9,54,6=9,(盒),答:可以装,9,盒。,488=6,(本),49,30,182,488,567,68,364,455,35,7,213,426,639,18,9,8.,看谁算得都对。,7,7,27,9,28,7,8,48,9,19,9,6,问题:(,1,)谁愿意来汇报一下你的计算结果?,(,2,)都有哪些同学算对了?,小结:看来我们在口算的时候,一定要认真看清每一道题的运算符号啊!只有这样才能算对。,比赛开始!看谁算得对。,7,49,2,16,3,27,49,7,16,2,27,3,4,5,8,3,6,7,9,27,9,32,4,48,8,30,5,42,6,35,5,24,6,63,9,36,4,40,5,18,2,21,7,213,328,497,142,648,455,99,728,549,284,369,186,7,7,8,9,3,9,7,1,4,6,7,4,更多精彩视频内容,敬请关注微信公众号:我是好教师,扫描二维码获取更多资源,
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