蘇教版國標(biāo)本數(shù)學(xué)二年級上冊第八單元 乘法口訣表.ppt

盱眙縣舊鋪實(shí)驗小學(xué)董德中,蘇教版國標(biāo)本第三冊數(shù)學(xué),乘法口訣表,一七得七,一七得七,一七得七,一七得七,二七十四,二七十四,二七十四,一七得七,二七十四,一七得七,二七十四,一八得八二八十六三八二十四四八三十二五八四十六八四十八七八五十六八八六十四,一九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,乘法口訣表,你能很快在空格里填上兩數(shù)相乘的積嗎？,4,2,2,4,4,16,你能很快在空格里填上兩數(shù)相乘的積嗎？,4,16,1,2,3,4,5,6,7,8,9,你能很快在空格里填上兩數(shù)相乘的積嗎？,4,16,1,2,3,4,5,6,7,8,9,2,3,4,5,6,7,8,9,你能很快在空格里填上兩數(shù)相乘的積嗎？,4,16,1,2,3,4,5,6,7,8,9,2,3,4,5,6,7,8,9,你能很快在空格里填上兩數(shù)相乘的積嗎？,4,16,1,2,3,4,5,6,7,8,9,2,3,4,5,6,7,8,9,你能很快在空格里填上兩數(shù)相乘的積嗎？,4,16,1,2,3,4,5,6,7,8,9,2,3,4,5,6,7,8,9,你能很快在空格里填上兩數(shù)相乘的積嗎？,4,16,1,2,3,4,5,6,7,8,9,2,3,4,5,6,7,8,9,681012141618,69121518212427,8122024283236,1015202530354045,1218243036424854,1421283542495663,1624324048566472,1827364554637281,你能很快在空格里填上兩數(shù)相乘的積嗎？,4,1,2,3,4,5,6,7,8,9,2,3,4,5,6,7,8,9,16,你能很快在空格里填上兩數(shù)相乘的積嗎？,4,16,1,2,3,4,5,6,7,8,9,2,3,4,5,6,7,8,9,4,72,81,你能很快在空格里填上兩數(shù)相乘的積嗎？,4,16,1,2,3,4,5,6,7,8,9,2,3,4,5,6,7,8,9,4,72,81,你能很快在空格里填上兩數(shù)相乘的積嗎？,4,16,1,2,3,4,5,6,7,8,9,2,3,4,5,6,7,8,9,72,81,誰說的乘法口訣多,18,比一比,誰說的乘法口訣多,24,比一比,誰說的乘法口訣多,12,比一比,誰說的乘法口訣多,16,比一比,誰說的乘法口訣多,36,比一比,(36)四九三十六(63)七九六十三(24)()(45)()(21)()(18)()(27)(),照樣子，寫口訣,四六二十四,42,54,12,81,72,六七四十二,五九四十五,六九五十四,三七二十一,三四十二,三六十八,九九八十一,三九二十七,八九七十二,49,35,看誰算的又對又快,729=68=213=76=426=546=147=79=74=59=68=279=819=405=355=92=77=324=63+2=73+1=86-4=,8,42,2,45,9,18,20,48,7,63,48,8,49,22,7,9,28,3,7,8,44,