《用9的乘法口诀求商》教学课件.ppt

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,用,9,的乘法口诀,求商,表内除法（二）,49,30,18,2,48,8,56,7,6,8,36,4,45,5,35,7,21,3,42,6,64,8,18,9,看谁算得都对。,7,8,27,9,28,7,8,48,9,19,9,6,自主探索用,9,的乘法口诀求商,27,9,3,27,3,9,想,：（）九二十七,想,：三（）二十七,三,九,口诀：三,九二十七,63,7,63,9,72,8,72,9,54,6,54,9,7,9,8,9,9,6,63,9,7,72,9,8,54,9,6,课堂训练,2,.填一填。,3,6,2,5,4,2,5,3,24,48,16,40,8,36,18,45,27,9,3,.小兔回家。,5.,被除数,32,35,30,63,72,63,81,除 数,4,5,6,7,8,9,9,商,8,7,5,9,9,7,9,