《3.進(jìn)位的兩位數(shù)乘兩位數(shù)的筆算 (5)》由會(huì)員分享，可在線閱讀，更多相關(guān)《3.進(jìn)位的兩位數(shù)乘兩位數(shù)的筆算 (5)（35頁(yè)珍藏版）》請(qǐng)?jiān)谘b配圖網(wǎng)上搜索。
1、單擊此處編輯母版標(biāo)題樣式,單擊此處編輯母版文本樣式,第二級(jí),第三級(jí),第四級(jí),第五級(jí),兩位數(shù)乘兩位數(shù)的進(jìn)位筆算,教學(xué)目標(biāo)：,1,、學(xué)生經(jīng)歷兩位數(shù)乘兩位數(shù)的筆算過(guò)程，學(xué)會(huì)計(jì)算兩位數(shù)乘兩位數(shù)進(jìn)位的乘法。,2,、在不同方法解決問(wèn)題的過(guò)程中加深對(duì)口算方法和筆算方法的理解，并加強(qiáng)應(yīng)用，培養(yǎng)世界解決問(wèn)題的能力。,3,、讓學(xué)生經(jīng)歷運(yùn)用兩位數(shù)乘兩位數(shù)計(jì)算解決實(shí)際問(wèn)題的過(guò)程，體會(huì)乘法計(jì)算的運(yùn)用價(jià)值。,自學(xué)指導(dǎo)：,用豎式計(jì)算，并驗(yàn)算。,33,21,45,12,13,52,復(fù)習(xí)：,27,10=34,20=,28,10=20,40=,11,40=,15,20=,20,50=,50,90=,270,680,280,800
2、,440,300,1000,4500,2,7,2,1,9,3,2,6,4,2,7,2,1,9,3,2,6,4,5,4,5,7,0,4,1,江蘇省電化教育館制作,我家訂一份牛奶,一份牛奶,(,每天一瓶,),全月,28,元,訂一份牛奶一年要花多少錢？,28,12=,(),28,12=,(),28,10=280,，,28,12,要比,280,多，,可能是,300,多。,28,12=,(),30,12=360,28,12,大約是,360,。,28,12=,先算半年要多少錢，,再算一年要多少錢。,28,6=168(,元,),168,2=336(,元,),336(,元,),28,12=,先算,10,個(gè)月和
3、,2,個(gè)月各要多少錢，再合起來(lái)。,28,10=280(,元,),28,2=56(,元,),336(,元,),280,56=336(,元,),2,28,12=,2,8,1,2,28,12=,2,8,1,6,5,2,28,12=,2,8,1,6,5,(2,個(gè)月的錢,),(10,個(gè)月的錢,),2,28,12=,2,8,1,6,5,2,8,(2,個(gè)月的錢,),(10,個(gè)月的錢,),(12,個(gè)月的錢,),1,2,28,12=,2,8,6,5,2,8,3,3,6,(2,個(gè)月的錢,),(10,個(gè)月的錢,),(12,個(gè)月的錢,),336(,元,),1,2,28,12=,2,8,6,5,2,8,3,3,6,1,
4、2,28,12=,2,8,6,5,2,8,3,3,6,1,2,28,12=,2,8,6,5,1,2,28,12=,2,8,6,5,2,8,1,2,28,12=,2,8,6,5,2,8,3,3,6,336(,元,),2,8,12,28=,1,2,2,8,12,28=,1,2,6,9,2,4,3,3,6,336,2,3,2,4,4,1,6,2,2,6,4,8,5,4,2,7,2,1,3,6,2,9,1,9,3,6,2,7,8,4,2,5,2,5,2,用豎式計(jì)算，并驗(yàn)算。,33,21,45,12,13,52,33,21=693,2,1,3,3,3,3,6,6,6,9,3,驗(yàn)算：,3,3,2,1,3,
5、6,6,3,6,9,3,45,12=540,1,2,4,5,0,9,4,5,5,4,0,驗(yàn)算：,4,5,1,2,0,6,4,8,5,4,0,13,52=676,5,2,1,3,6,2,6,5,6,7,6,驗(yàn)算：,1,3,5,2,6,5,5,2,6,7,6,1,2,5,1,4,0,7,8,2,9,8,2,3,3,4,2,7,6,8,7,5,2,數(shù)學(xué)醫(yī)院,2,5,1,4,0,7,8,2,9,8,2,5,1,4,0,7,2,8,3,5,0,對(duì)位錯(cuò)誤,2,3,3,4,2,7,6,8,7,5,2,2,3,3,4,2,0,6,8,7,8,2,1,計(jì)算錯(cuò)誤,江蘇省電化教育館制作,我買,32,張兒童票,成人 每位,24,元兒童 每位,12,元,你能提出什么問(wèn)題？,江蘇省電化教育館制作,我買,32,張兒童票,成人 每位,24,元兒童 每位,12,元,買,32,張兒童票需要多少錢？,32,12=384(,元,),1,2,3,2,4,6,3,2,3,8,4,答：買,32,張兒童票要,384,元。,
3.進(jìn)位的兩位數(shù)乘兩位數(shù)的筆算 (5)
