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,*,继续,表内乘法和表内除法(二),7的乘法口诀和用口诀求商,继续表内乘法和表内除法(二),1,学习任务,例 7的乘法口诀,1,想想做做,练习十一,继续,例 用乘法口诀求商,2,想想做做,学习任务例 7的乘法口诀 1想想做做练习十一继续例,2,7+7=14,14,14+7=21,21,21+7=28,28,28+7=35,35,35+7=42,42,42+7=49,49,一,14,十四,21,三七二十一,28,四七二十八,35,五七三十五,42,六七四十二,49,七七四十九,14,7,21,继续,返回,7+7=141414+7=212121+7=282828+7,3,28,28,28,35,35,35,42,42,42,7,7,17=7,71=7,67=42,76=42,47=28,74=28,37=21,73=21,57=35,75=35,77=49,继续,返回,2828283535354242427717=767=4,4,35,21,49,14,42,35,7,28,28,4,7,个,42,6,7,户,3,4,7,6,继续,返回,3521491442357282847个4267户347,5,四,4,个,七,7,朵,一句乘法口诀,一般可以写出两道除法算式。,继续,返回,四4个七7朵一句乘法口诀,一般可以写出两道除法算式。继续返回,6,42,7,6,7,1,7,35,5,7,四七二十八,二七十四,142=7,147=2,497=7,497=7,284=7,287=4,七七四十九,继续,返回,42767173557四七二十八二七十四142=7497,7,4,7,7,7,35,7,3,42,7,7,42,6,串,6,42,7,颗,6,7,继续,返回,477735734277426串6427颗67继续返回,8,拼图,7块,?排,7,49,7,排,5,35,7,个,1个星期7天!,继续,返回,拼图7块?排7497排5357个1个星期7天!继续返回,9,一一得一,一二得二,二二得四,一三得三,一四得四,一五得五,一六得六,一七得七,一八得八,一九得九,二九十八,三九二十七,四九三十六,五九四十五,六九五十四,七九六十三,八九七十二,九九八十一,二八十六,三八二十四,四八三十二,五八四十,六八四十八,七八五十六,八八六十四,二七十四,三七二十一,四七二十八,五七三十五,六七四十二,七七四十九,二六十二,三六十八,四六二十四,五六三十,六六三十六,二五一十,三五十五,四五二十,五五二十五,二四得八,三四十二,四四十六,二三得六,三三得九,继续,返回,一一得一一二得二二二得四一三得三一四得四一五得五一六得六一七,10,46=24,64=24,244=6,246=4,17=7,71=7,71=7,77=1,44=16,183=6,186=3,36=18,63=18,142=7,147=2,27=14,72=14,77=49,37=21,73=21,355=7,357=5,284=7,287=4,47=28,74=28,57=35,75=35,497=7,213=7,217=3,164=4,继续,返回,一句乘法口诀,一般可以写出两道乘法算式和两道除法算式。,46=24244=617=771=744=1618,11,28,7,35,35,1,6,7,7,5,4,24,14,目前7道算式:,7 1 =7,7 2 =14,7 3 =21,7 4 =28,7 5 =35,7 6 =42,7 7 =49,目前7道算式:,7 1 =7,14 2 =7,21 3 =7,28 4 =7,35 5 =7,42 6 =7,49 7 =7,继续,返回,28735351677542414目前7道算式:7 1,12,=,20,=,30,=,30,=,40,=,39,=,52,16,16,25,25,36,36,4个4比,3个5多1.,5个5比,4个6多1.,6个6比,5个7多1.,继续,返回,=20=30=30=40=39=52161625253636,13,284=,7,(组),287=,4,(人),47=,28,(人),或74=,28,(人),继续,返回,284=7(组)287=4(人)47=28(人)或7,14,213=,7,(盆),21盆,送走,7盆,21-7=(),14,盆,继续,返回,213=7(盆)21盆送走7盆21-7=(,15,4支钢笔,?圆珠笔,47=(),28,支,27=(),14,元,继续,返回,4支钢笔?圆珠笔47=()28 支2,16,357=,5,(个),21,8,13,7,3,20,7,13,5,4,23,12,5,15,4,7,42,22,7,思维冲浪:,找规律填数.,3,7=21,13+8=21,4,5=20,13+7=20,12+23=35,35,355=7,7,4,7=28,28-15=13,28,13,42-22=20,20,427=6,6,继续,返回,每份5个,357=5(个)218137320713542312515,17,