2023年四年級(jí)數(shù)學(xué)上冊(cè)教材練習(xí)九上課課件新人教版
R,四年級(jí)上冊(cè),練習(xí)九,教材,P54,練習(xí)九,T1,10,1.,根據(jù)每組題中第,1,題的積,寫(xiě)出下面兩題的得數(shù)。,792,7920,79200,2403,243,24030,1805,18015,36015,158,1580,15800,720,72,7200,900,2700,5400,相同,10,相同,10,10,相同,10,10,相同,10,10,相同,3,3,相同,2,2,(,1,),(,2,),(,3,),教材,P54,練習(xí)九,T2,2.,8978=,6465=,6998=,54815=,40321=,20326=,50624=,4715=,24037=,教材,P54,練習(xí)九,T2,8978,54815,=6942,7,8,7,1,2,3,2,6,6,9,4,2,8,9,5,1,5,7,4,0,8,4,5,8,2,2,0,4,8,2,=8220,50624,6465,=12144,6,5,3,2,0,4,8,3,4,1,6,0,6,4,=4160,教材,P54,練習(xí)九,T2,2,4,2 0 2 4,5,0,6,1 0 1 2,1 2 1 4 4,教材,P54,練習(xí)九,T2,40321,4715,=8463,4,2,1,4,0,3,6,0,8,8,4,6,3,0,3,1,5,2,3,5,7,4,7,0,5,4,7,=705,教材,P54,練習(xí)九,T2,6998,20326,=6762,9,8,5,5,2,1,2,6,6,7,6,2,6,9,3,0,2,6,5,2,2,6,=6520,0,教材,P54,練習(xí)九,T2,24037,=8880,2,3,7,1,6,8,2,7,0,8,8,8,4,0,教材,P54,練習(xí)九,T3,3,.,提出一個(gè)已知單價(jià)和數(shù)量,求總價(jià)的問(wèn)題。,答案不唯一。如:一個(gè)玩偶,68,元,買(mǎi),15,個(gè)要多少錢(qián)?,教材,P54,練習(xí)九,T4,8,16,32,24,60,180,240,15,192,2,2,384,2,2,768,900,3,3,2700,4,4,3600,4,.,仔細(xì)觀察因數(shù)的關(guān)系,再計(jì)算。,教材,P54,練習(xí)九,T5,5,.,提出一個(gè)已知速度和時(shí)間,求路程的問(wèn)題。,答案不唯一。如:高鐵每小時(shí)行,120,千米,,5,小時(shí)行了多少千米?,教材,P54,練習(xí)九,T6,6,.,下面的說(shuō)法正確嗎?正確的在()里畫(huà),“”,錯(cuò)誤的在()里畫(huà)“,”。,(,1,)已知每個(gè)筆袋的價(jià)錢(qián)和買(mǎi)的個(gè)數(shù),求總價(jià),要用筆袋的單價(jià)乘個(gè)數(shù)。,(),(,2,)“小明家和學(xué)校相距,700,米,他從家到學(xué)校走了,10,分鐘,他每分鐘走多少米?”這道題是求路程。,(),(,3,)已知,3,小時(shí)走的路程,可以求速度。,(),教材,P55,練習(xí)九,T7,5,不變,7,.,因數(shù),20,40,200,因數(shù),5,5,10,積,200,2000,100,2,2,40,不變,2,2,400,5,不變,10,教材,P55,練習(xí)九,T8,8,.,單買(mǎi)一種:,183=54,(元),213=61,(元),買(mǎi)兩種:,182=36,(元),36+21=57,(元),212=42,(元),42+18=60,(元),9.,王叔叔從縣城開(kāi)車去王莊鄉(xiāng)送化肥,去的時(shí)候速度是,40,千米,/,時(shí),用了,3,小時(shí),原路返回用了,2,小時(shí)。,(,1,)從縣城到王莊鄉(xiāng)有多遠(yuǎn)?,(,2,)返回時(shí)平均每小時(shí)行多少千米?,(,1,),40,3=120,(千米),(,2,),120,2=60,(千米,/,小時(shí)),答:從縣城到王莊鄉(xiāng),120,千米,返回時(shí)平均每小時(shí)行,60,千米。,教材,P55,練習(xí)九,T9,教材,P55,練習(xí)九,T10,1514=210,1528=_,1542=_,1556=_,1570=_,不變,2,2,420,不變,3,3,630,不變,4,4,840,不變,5,5,1050,10.,根據(jù)下面第,1,題的積,找規(guī)律填出其他題,的得數(shù)。,