北師大版三年級數(shù)學下冊全冊課件培訓資料

問題探究練習拓展北師大版三年級下冊第一單元除法Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.10個10個10個10個10個10個68÷2＝34（個）60÷2＝308÷2＝430＋4＝34答：每只猴子分到34個。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.10個10個10個10個10個10個68÷2＝34（個）628368480十位個位Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.68÷2＝22（個）······2（個）263868262十位個位又來了1只猴子，68個桃子平均分給3只猴子，每只分到多少個，還剩多少個？答：每只分到22個，還剩2個。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.幼兒園有86塊積木。⑴把這些積木平均分給2個大

班，每班分到多少塊？分一

分，算一算。⑵用豎式算一算，并結(jié)合分積

木的過程說一說每一步的意

思。⑶如果把這些積木平均分給4

個小班，每班分到多少塊，

還剩多少塊？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.算一算。428829639555667824845936Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.填一填。3122112123Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.淘氣喜歡照相，笑笑幫助他整理相冊?？梢?/p>

裝滿多少頁，還剩幾張？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.填一填。()×2＝28()×3＝33()×2＝64()×4＝84()×8＝88()×7＝77143211112111Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.問題探究練習拓展北師大版三年級下冊第一單元除法Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.48÷3＝16（個）答：每人能分到16個。10個10個10個10個每人能分到多少個？30÷3＝1018÷3＝610＋6＝16Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.48÷3＝16（個）10個10個10個4381318618010個Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.328542732Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.⑴64棵樹苗平均分給4個小組，每個小組分到多

少棵？分一分，算一算。⑵用豎式算一算，并結(jié)合分的過程說說每一步

的意思。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.831960978864946Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.515812Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.兩家藥店賣同一種口服藥，哪家藥店的便宜？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.猜一猜，可能有多少顆珠子？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.問題探究練習拓展北師大版三年級下冊第一單元除法Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.888÷6＝148（千米）答：平均每時運行148千米。從北京到四平的鐵路全長888千米，動車運行時間約6時。88861862842448480Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.61862842448480888600÷6＝100240÷6＝4048÷6＝8100＋40＋8＝148Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.565÷5＝456÷3＝784÷7＝547Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.分一分，并用豎式計算。結(jié)合分的過程，說一說

每一步的意思。369÷3＝524÷4＝Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.先估一估商是幾位數(shù)，再計算。348÷2＝636÷4＝885÷5＝868÷7＝396÷3＝896÷8＝Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.⑴每班分到多少本書？685本⑵長頸鹿的身高是小青蛙

的多少倍？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.笑笑折了375顆幸運星，淘氣折了309顆幸運星，他們要把這些幸運星平均裝在6個愛心盒里，送給幼兒園的6個班，每個盒子放多少顆？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第一單元除法問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.6÷3＝2Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3÷3＝1Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.0÷3＝0Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.306÷3＝3063130206102（個）答：平均每只猴子分到102個桃子。300÷3＝1006÷3＝2100＋2＝102060Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.840616224000440Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.平均每只小貓分到幾條魚？4÷2＝22÷2＝10÷2＝2Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.圈一圈，算一算。42024022Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.計算。420÷3＝880÷4＝780÷6＝309÷3＝Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.森林醫(yī)生。24021242400702361010422203912412080442841400Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.下午平均每次運多少把椅子？（970－450）÷4＝130（把）Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第一單元除法第一課時第二課時Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.912339104120答：平均每個班賣了304元。912÷3＝304（元）900÷3＝30012÷3＝4300＋3＝3002Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.522÷4＝130（元）······2（支）答：平均每個班賣了130支筆，還剩2支。學校用賣廢品的錢買了522支筆，送給手拉手的鄉(xiāng)村小學4個班的小朋友，平均每個班多少支筆，還剩幾支？5224413122210Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.圈一圈，算一算。31834204Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.樂樂全家去旅游，一共拍了412張照片，平均放

在4本相冊里，每本相冊放多少張？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.624÷6＝704÷5＝846÷7＝Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.502÷2＝251502241510202120Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.315÷3＝960÷8＝805÷5＝Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.森林醫(yī)生。6802648083081648416016207277707071123216Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.先計算，再驗算。621÷3＝432÷4＝814÷2＝905÷5＝630÷6＝604÷4＝Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.6.填一填。被除數(shù)606832720除數(shù)68364商105190101104180630760Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.7.澆花。⑴三年級平均每班澆多少盆？⑵請你再提出一個除法問題，并嘗試解決。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.8.估一估，說算一算，連一連。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第一單元除法問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.285÷5＝285552535735057（頁）答：這些郵票能放57頁。每頁放5張，這些郵票能放多少頁？百位上不夠商1時，怎么辦？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.285÷8＝285832445540535（頁）······5（張）答：可以放滿35頁，還剩5張。如果每頁放8張，可以放滿多少頁，還剩多少張？驗算：358×2802805＋285Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.⑴估一估，這捆繩子大約能剪

出多少根跳繩？⑵算一算，能剪出多少根跳繩？⑶如果每根跳繩長5米，能剪出多少根，還剩多少米？列式計算并驗算。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.淘氣是個軍事迷。他有144張不同的火箭發(fā)射

圖片，他計劃給同學展示一下，每塊展板可以

放9張圖片。

⑴算一算，需要多少塊展板？

⑵結(jié)合具體情境，說一說每一步的意思。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.先估一估商是幾位數(shù)，再計算。355÷5＝164÷4＝522÷6＝217÷7＝156÷4＝846÷6＝364÷7＝906÷6＝Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.在里填上“＞”“＜”或“＝”。96÷896÷6120÷4240÷890÷580÷5156÷3745÷5＜＝＞＜Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.請你提出一個數(shù)學問題，并嘗試解答。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第一單元除法問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.200÷2÷4＝100÷4＝25（本）200÷（2×4）＝200÷8＝25（本）12答：平均每個書架每層放25本書。先求每個書架放多少本先求兩個書架共有幾層Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.圖書館購進4套《百科全書》，共花了384元。

平均每本多少元？先畫一畫圖，再列式計算。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.⑴需要幾個箱子？圈一

圈，算一算。⑵平均每隊有多少人？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.計算。756÷7÷6624÷2÷3801÷（3×3）624÷（2×3）Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.按要求連一連。48×232×596÷3160÷2240÷580×3Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.奇思去游泳池，他在泳道內(nèi)游了3個來回，共游

了150米，這個游泳池的泳道有多長？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第一單元除法問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1分1分1分1分1分850字？字5分850字3分？字Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1分1分1分1分1分850字？字5分850字3分？字850÷5＝170（字）170×3＝510（字）850÷5×3＝170×3＝510（字）答：淘氣3分鐘能講510字。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4分150×4÷3＝600÷3＝200（字）答：每分應講200字。笑笑講一個故事用了4分，平均每分講150字。如果要3分完成，每分應講多少字？150字150字150字150字3分？字Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.說一說，再列式算一算。648米？米120個？個Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.畫一畫，算一算。⑴玩具廠3天加工了630輛小汽

車，照這樣做下去，5天能

加工多少輛？⑵玩具廠要做一批小飛機，計

劃每天加工180架，5天完成。

實際完成任務只用了4天，

平均每天加工多少架？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.279÷3÷3735÷5÷7960÷6×4800÷（2×4）Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.⑴買9輛這樣的玩具汽車需要多少元？⑵如果排成4排，每排多少人？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.他們用電腦錄入同樣字數(shù)的稿件，笑笑平均每分

錄入多少個字？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第二單元圖形的運動問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.折一折，看一看。對稱軸軸對稱圖形Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.利用附頁1中圖2折一折，看一看，下面哪些圖形

是軸對稱圖形？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.下面哪些圖形是軸對稱圖形？畫“√”?！獭獭獭獭獭蘀valuationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.找一找下列哪些數(shù)字、漢字、字母是軸對稱圖形。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.用對折的方法找出下面圖形（附頁1中圖3）的對稱軸。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.生活中有許多圖案都是軸對稱的，請你找一找并和

同伴說一說。銀杏樹葉斜拉橋布依族的蠟染京劇臉譜Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第二單元圖形的運動問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.做一做，你有什么發(fā)現(xiàn)？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.下面都是軸對稱圖形的一半，想一想，整個圖形是什么？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.將一張紙對折后剪去兩個圓，展開后是哪一個？想一想，做一做。⑴⑵⑶⑷Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.把一張正方形紙對折，剪下一個直角三角形，展

開后是什么圖形？做一做，看一看。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.下面都是軸對稱圖形的一半，想一想，整個圖形

是什么？利用附頁2中圖1，試一試。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.淘氣在對折好的紙上剪了兩個洞，打開后會是哪

一個？想一想，做一做。畫“√”?！蘀valuationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.兒童畫廊里畫出了各表情臉譜的一半，猜一猜表

示快樂和憤怒的臉譜各是哪一個。憤怒快樂Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.下面是笑笑的剪紙作品，請你也創(chuàng)作一幅軸對稱

的剪紙作品，參加班級的展示。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第二單元圖形的運動第一課時第二課時Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.平移現(xiàn)象旋轉(zhuǎn)現(xiàn)象Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.平移旋轉(zhuǎn)Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.觀察下面物體的運動，是平移的畫“△”，是旋

轉(zhuǎn)的畫“○”。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.涂一涂。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.移一移，描一描。把棋子向下平移4格。把鉛筆向右平移3格。把三角尺向左平移2格。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.說一說，鉛筆和三角尺怎樣才能平移到圖③的位置？圖①圖②圖③鉛筆先向右平移5格，再向下平移2格。鉛筆先向下平移2格，再向右平移5格。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.說一說，鉛筆和三角尺怎樣才能平移到圖③的位置？圖②圖③三角尺先向上平移2格，再向右平移3格。三角尺先向右平移3格，再向上平移2格。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.移一移，描一描。⑴把圖①向左平移5格。⑵把圖②向右平移4格。⑶把圖③向上平移1格。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.要鋪滿最下面一層，說一說和分別

需要進行怎樣的平移？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.右面是動物棋盤，

擲硬幣決定誰先

走。每次只能平

移1格，看貓能否

捉到鼠。剪下附

頁2中圖2，和同

伴玩一玩。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第三單元乘法問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5×1＝5×10＝50×10＝3×2＝3×20＝30×20＝12×4＝12×40＝120×40＝550500660600484804800000000000000000000Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.6×3＝15×4＝18×2＝6×30＝15×40＝18×20＝60×30＝150×40＝180×20＝181801800606006000363603600000Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.16×30＝160×30＝4804800160×3＝16×300＝4804800Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.算一算，照樣子再寫出一組算式。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.根據(jù)24×20＝480，直接寫出下面算是的結(jié)果。240×20＝240×2＝24×200＝Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.把結(jié)果相同的算是連起來。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.盤數(shù)1102030個數(shù)Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.買運動服。⑴體操隊要買大號運

動服13套，小號運

動服16套，各需要

多少錢？⑵張老師帶了2000元

買運動服，夠嗎？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第三單元乘法問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.學校舉行隊列表演，一共有12行，每行有14人。有多少人參加隊列表演？14×12＝141214×10＝14014×2＝28140＋28＝168168（人）14×12＝14×6×2＝84×2＝168Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.學校舉行隊列表演，一共有12行，每行有14人。有多少人參加隊列表演？14×121412×10410100402208100＋40＋20＋8＝168下面的方法你能看懂嗎？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.算一算。15×1123×12Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.一共有多少箱水果？圈一圈，算一算。12×12＝144（箱）Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.填一填，算一算。23×1314×11×203103×104101Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.計算。11×1112×1113×1312×13Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.一共需要多少元？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.海象爸爸和媽媽的體重各是多少千克？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第三單元乘法問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1412×28······14×2140＋168······14×10······28＋14014Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2123×3412×3313×Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.同學們進行體操表演，每排13人，有12排，一共

有多少人？⑴用豎式計算。⑵圈一圈，并說一說

豎式每一步的意思。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.3213×3421×2243×2121×Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.數(shù)一數(shù)，算一算。⑴小青蛙每次跳11個格，它跳了18次，一共跳了

多少格？⑵大青蛙每次跳21個格，它跳了14次，一共跳了

多少格？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.世界杯足球賽有32支球隊參加，每隊23名運動員。

一共有多少名運動員？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.“少先隊林”里現(xiàn)在有多少棵樹？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第三單元乘法問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.21×26＝20×26＝5201×26＝26520＋26＝546×20120640020120621×2612642546546（個）400＋120＋20＋6＝546Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.38×12＝38×127638456456（元）三⑴班有38名同學，每張電影票12元，買電影票需要多少元？1答：買電影票需要456元。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.光明小學有15個教學班，平均每版有38人。⑴這所學校的學生有600名嗎？你是怎樣估算的？⑵算一算，這所學校有多少名學生？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.他能在30分內(nèi)錄完這篇稿子嗎？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.計算。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.三⑵班有42人，每人買1個書包和1個鉛筆盒。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.我國臺灣用“視窗”來記錄心算結(jié)果。24×23126080400＋552······4×3······20×3······4×20······20×20視窗Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.古印度是從高位開始算的。24×2348612＋552······20×20······20×4······20×3······4×3Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.用畫線的方法也可以計算乘法。24×232324400＋140＋12＝552Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第四單元千克、克、噸問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1千克＝1000克1kg＝1000gEvaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.填一填。這個雞蛋重（）克這個西瓜重（）千克笑笑體重是（）千克100525Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2.在（）里填上合適的單位。260（）克400（）克10（）千克2（）千克Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3.填一填。3千克＝（）克30004000克＝（）千克8000克＝（）千克48Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4.稱一稱，填一填。我的體重同伴的體重我的書包一個土豆一?；ㄉ刮业墓烙嫹Q量結(jié)果Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.1千克的棉花和1千克的鹽比較，哪個重些？說

說你是怎么想的？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.6.看一看，猜一猜。1個3個1個2個Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.北師大版三年級下冊第四單元千克、克、噸問題探究練習拓展Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1噸＝1000千克1t＝1000kgEvaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.一卡車貨物重3（）一桶食用油重2（）一支牙膏重50（）一頭牛重250（）噸千克克千克Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1.讀一讀，填上合適的單位（克、千克、噸）今天，陽光明媚，爸爸媽媽帶我去動物園。我們先買了一些食品，爸爸買了1

蘋果和1

梨子，還買了一個50