2015小学二年级上册数学第六单元8的乘法口诀PPT课件.ppt

第一PPT模板网-WWW.1PPT.COM,PPT模板下载：www.1ppt.com/moban/ 行业PPT模板：www.1ppt.com/hangye/ 节日PPT模板：www.1ppt.com/jieri/ PPT素材下载：www.1ppt.com/sucai/ PPT背景图片：www.1ppt.com/beijing/ PPT图表下载：www.1ppt.com/tubiao/ 优秀PPT下载：www.1ppt.com/xiazai/ PPT教程： www.1ppt.com/powerpoint/ Word教程： www.1ppt.com/word/ Excel教程：www.1ppt.com/excel/ 资料下载：www.1ppt.com/ziliao/ PPT课件下载：www.1ppt.com/kejian/ 范文下载：www.1ppt.com/fanwen/ 试卷下载：www.1ppt.com/shiti/ 教案下载：www.1ppt.com/jiaoan/,口答 3×6 = 6×5 = 7×2 = 1×7 = 7×6 = 2×5 = 7×7 = 4×7 = 6×3 = 5×4 = 7×5 = 6×4 =,18,7,49,20,30,42,28,35,14,10,18,24,1只螃蟹有几条腿？,2只螃蟹几条腿呢？,3只呢？,4只呢？,5只呢？,6只呢？,7只呢？,8只呢？,2×8=16,十六,二十四,三十二,四十,四十八,五十六,六十四,16,24,32,40,48,56,64,二八（ ） （ ）八四十八 五八（ ） 八（ ）六十四 四（ ）三十二 （ ）八二十四,十六,四十,八,六,八,三,32,32,32,48,48,48,56,56,56,8,8,×（个）,×（棵）,看卡片口算,并说说分别用哪句口诀计算的！ 85 = 84= 82 = 87= 81 = 83= 88 = 86=,40,16,8,64,32,56,24,48,填适当的数 7 （ ）=56 8 （ ）=32 8 （ ）=40 （ ）（ ）=24,8,5,4,8,1,2,3,4,5,6,7,8,你能用口诀算一算吗？,56,12,32,24,64,16,48,21,42,40,24,4 6 2 6 6 8 8 8,7 6 7 8 5 8 5 4,8 4 3 8 2 8 3 7,游戏：摘苹果,20,开火车口答：,8×3= 5×8= 4×8= 8×2= 8×6= 3×8= 8×8=,24,40,32,16,48,24,64,8×2= 6×7= 5×8= 5×6= 7×3= 4×8= 8×3=,16,42,40,30,21,32,24,8×6= 5×7= 8×8= 6×8= 2×8= 5×6= 4×7=,48,35,64,48,16,30,28,