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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,*,*,有趣的乘法计算,有趣的乘法计算,2,4,1,1,2,4,2 4,2,6,4,5,3,1,1,5,3,5,3,5,8,3,6,2,1,1,6,2,6,2,6,8,2,两位数乘11,2 4 5 3 6 2两位数乘11,2,4,1,1,2,4,2 4,2,6,4,5,3,1,1,5,3,5,3,5,8,3,6,2,1,1,6,2,6,2,6,8,2,两位数乘11,2 4 5 3 6 2两位数乘11,2,4,1,1,2,4,2 4,2,6,4,5,3,1,1,5,3,5,3,5,8,3,6,2,1,1,6,2,6,2,6,8,2,两位数乘11,36,11=,396,两头一拉 中间相加,15,11=,165,253,23,11=,2 4 5 3 6 2两位数乘11 361,两位数乘11,64,11=,两头一拉 中间相加,6 4,10,两位数乘11 6411= 两头一拉 中间相加6,两位数乘11,64,11=,704,两头一拉 中间相加,59,11=,649,67,11=,6,4,1,1,6,4,6,4,7,0,4,十位满十 百位加一,737,两位数乘11 6411= 704 两头一拉 中间相,22,28=,35,35=,56,54=,2228=,2,2,2,8=,3,5,3,5=,5,6,5,4=,2228=,2,2,2,8,=,3,5,3,5,=,5,6,5,4,=,2228=,2,2,2,8,=,3,5,3,5,=,5,6,5,4,=,十位相同 个位相加得十,616,1225,3024,2228= 十位相同 个位相加得十6161225,2,2,2,8,=,3,5,3,5,=,5,6,5,4,=,6,16,12,25,30,24,十位相同 个位相加得十,2228= 61612253024十位相同 个位,2,2,2,8,=,3,5,3,5,=,5,6,5,4,=,6,16,12,25,30,24,十位相同 个位相加得十,2,（2+,1,）,2,3,3,（3+,1,）,3,4,5,（5+,1,）,5,6,1,5,1,5,=,4,3,4,7,=,6,9,6,1,=,25,2,21,20,09,42,2228= 61612253024十位相同 个位,624,625,2024,2025,5624,5625,6246252024202556245625,有趣的乘法计算,两位数乘11,23,11=253,64,11=704,十位相同 个位相加得十,22,28=616 56,54=3024,有趣的乘法计算两位数乘11 2311=253,5456= 6763= 2426=,2327= 1188= 1162=,1812= 9496= 4248=,6367= 2822= 8684=,2129= 1133= 4149=,1119= 3222= 4262=,3024,621,216,4221,609,209,4221,968,9024,616,363,704,624,682,2016,7224,2009,2604,比一比 赛一赛 计时赛,302462121642216092094221968902,谢谢,谢谢,
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