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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,#,9,的乘法口诀,9的乘法口诀,1,38=,24,看谁算得快。,78=,56,355=,7,84=,32,568=,7,40,8+8+8+8+8=,38=24看谁算得快。78=56355=784=32,2,一九（）,九九（）,二九（）,三九（）,四九（）,五九（）,六九（）,七九（）,八九（）,2,个,9,3,个,9,4,个,9,5,个,9,6,个,9,7,个,9,8,个,9,9,个,9,1,个,9,一九（）九九（）二九（,3,1,2,3,4,5,6,7,8,9,10,1,个,9,2,个,9,3,个,9,4,个,9,5,个,9,6,个,9,7,个,9,8,个,9,9,个,9,行数,1,2,3,4,5,6,7,8,9,的个数,36,45,54,63,72,81,9,18,27,1,0,1,=9,2,0,2,=18,3,0,3,=27,4,0,4,=36,5,0,5,=45,6,0,6,=54,7,0,7,=63,8,0,8,=72,9,0,9,=81,123456789101个92个93个94个95个96个97,4,行数,1,2,3,4,5,6,7,8,9,的个数,36,45,54,63,72,81,9,18,27,一九（,）,九九（）,二九（）,三九（）,四九（）,五九（）,六九（）,七九（）,八九（）,得九,十八,二十七,三十六,四十五,五十四,六十三,七十二,八十一,行数 1 2 3 4 5 6 7,5,69,5 4,19,9,0,0,29,1 8,39,2 7,49,3 6,59,4 5,79,6 3,89,7 2,99,8 1,1,3,5,8,8,6,4,1,695 419 900291 8392,6,1,2,3,4,5,6,7,8,9,1,个,9,2,个,9,3,个,9,4,个,9,5,个,9,6,个,9,7,个,9,8,个,9,9,个,9,行数,1,2,3,4,5,6,7,8,9,的个数,36,45,54,63,72,81,9,18,27,1,0,1,=9,2,0,2,=18,3,0,3,=27,4,0,4,=36,5,0,5,=45,6,0,6,=54,7,0,7,=63,8,0,8,=72,9,0,9,=81,69,5,4,1234567891个92个93个94个95个96个97个9,7,1,2,3,4,5,6,7,8,9,10,12345678910,8,二九,十八,二九十八,9,1,2,3,4,5,6,7,8,9,10,四九,12345678910四九,10,三十六,四九,三十六四九,11,1,2,3,4,5,6,7,8,9,10,12345678910,12,七九六十三,七九六十三,13,29,18,2,18,18,9,2,二九十八,92,18,9,读算式、讲得数、说口诀。,29 182 181892二九十八92189,14,六九五十四,6,9,54,9,6,54,54,6,9,54,9,6,六九五十四6954965454695496,15,九九八十一,9,9,81,81,9,9,九九八十一99818199,16,比一比，看谁算得快？,69,93,99,29,54,6,63,9,72,9,95,94,54,18,81,7,9,27,36,8,45,比一比，看谁算得快？69939929546,17,7,9=64,99=81,69=45,39=27,89=70,45,9=5,3,54,2,我当小老师,79=6499=8169=4539=2789=70,18,6,6,36,2,9,18,3,9,27,9,8,72,6,9,54,9,7,63,4,9,36,猜猜后面藏着谁。,663629183927987269 5,19,一,九,二,九,不出手，,三,九,四,九,冰上走。,五,九,六,九,沿河看柳，,七,九,河开，八,九,燕来。,九,九,加一,九,，耕牛遍地走。,29=18,（天）,“,二九,”,结束时,，,过了多少天？,一,九,从冬至开始数，数,9,天为,一,九,九九歌,一九二九不出手，29=18（天）“二九”结束时，过了多少天,20,一,九,二,九,不出手，,三,九,四,九,冰上走。,五,九,六,九,沿河看柳，,七,九,河开，八,九,燕来。,九,九,加一,九,，耕牛遍地走。,冬至过了,36,天，几九结束？,369=4,九九歌,一九二九不出手，冬至过了36天，几九结束？,21,九九歌,一,九,二,九,不出手，,三,九,四,九,冰上走。,五,九,六,九,沿河看柳，,七,九,河开，八,九,燕来。,九,九,加一,九,，耕牛遍地走。,九九加一九是多少天？,99=81,（天）,81+9=90,（天）,九九歌一九二九不出手，九九加一九是多少天？,22,谢谢,!,谢谢!,23,女大十八变，越变越好看。,二九十八,十八般武艺，样样精通,。,三十六计，走为上计。,孙悟空有“七十二变”,唐僧取经历经九九八十一难,四九三十六,八九七十二,九九八十一,女大十八变，越变越好看。二九十八十八般武艺，样样精通。三十六,24,59,89,5,4,2,7,69,79,5,4,6,3,5989 542769 79 5463,25,1,2,3,4,5,6,7,8,9,1,个,9,2,个,9,3,个,9,4,个,9,5,个,9,6,个,9,7,个,9,8,个,9,9,个,9,1,0,1=9,2,0,2=,1,8,3,0,3=,2,7,4,0,4=,3,6,5,0,5=,4,5,6,0,6=,5,4,7,0,7=,6,3,8,0,8=,7,2,9,0,9=,8,1,1234567891个92个93个94个95个96个97个9,26,3,9=,4,3,7,9=,6,6,3,9=,9=,39=4379=6639=9=,27,19,9,0,0,29,1 8,39,2 7,49,3 6,59,4 5,69,5 4,79,6 3,89,7 2,99,8 1,1,3,5,8,6,4,1,8,19 900291 8392 7493,28,38=,24,看谁算得快。,78=,56,355=,7,84=,32,568=,7,40,8+8+8+8+8=,5,个,8,58,9+9+9+9+9,5,个,9,59,38=24看谁算得快。78=56355=784=32,29,树雄心攻克科学堡垒立壮志攀登世界高峰,树雄心攻克科学堡垒立壮志攀登世界高峰,30,29,1 8,19,9,39,2 7,49,3 6,59,4 5,69,5 4,79,6 3,89,7 2,99,8 1,0,0,99,8 1,49,3 6,29,1 8,291 819 9392 7493 65,31,29,1 8,19,9,39,2 7,49,3 6,59,4 5,69,5 4,79,6 3,89,7 2,99,8 1,0,0,99,8 1,49,3 6,29,1 8,291 819 9392 7493 65,32,
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