人教版三年級數(shù)學上冊期末易錯題

1、易錯題一、填空。（1）3路公共汽車每隔10分發(fā)出一輛，1小時可以發(fā)出（ ）輛。（2）一個正方形的周長是20 厘米，它的邊長是（ ）厘米。（3）小明上午7:40到校，11:20放學，他上午的在校時間是（ ）時（ ）分。 （4）小花每分鐘打52個字，8分鐘大約打（ ）個字。（5）用兩個邊長1厘米的正方形拼成一個長方形，周長減少了（ ）厘米。（6）做10道口算題要約1（ ） （7）7000米+8000米=（ ）千米。（8）36的9倍是（ ），36是9的（ ）倍。（9）把兩個周長是6厘米的正方形拼成一個長方形，它的周長是（ ）。（10）米、分米、厘米、毫米這幾個相鄰單位的進率是（ ）。（11）8個1/

2、7是（ ）。（12）按從小到大的順序排列起來。 200分米 2020米 2千米 22米 （ ）（13）一個分數(shù)，它的分子是4，分母是分子的2倍，這個分數(shù)是（    ）。（14）長方形長是20米，是寬的2倍，這個長方形的周長是（  ）米。（15）直尺上1厘米中間有（     ）個小格，每一小格長（     ）毫米。16、有兩個長方形，長都是4厘米，寬都是2厘米，如果把它們 拼成一個正方形，這個正方形的邊長是（  

3、60;）厘米，周長是（   ）厘米。17、小明從家到學校步行要20分鐘，他要在7：45分到校，需（  ： ）從家出發(fā)。18、足球比賽15：30分開始，17：10結(jié)束，比賽經(jīng)過了（   ） 時（  ）分。19、一張長方形的紙，對折三次，每小份是這張紙的（     ）。20、把一張長方形紙條平均分成6份，取它的3份，這3份就是這張長方形紙條的（ ），它里面有（ ）個（ ）。21、605×4，積的最高位是（ ）。 22、在一個長35

4、厘米，寬15厘米的長方形紙片上剪下一個最大的正方形，這個正方形的周長是（ ）厘米。二、判斷題。1、兩個數(shù)相除，余數(shù)是6，除數(shù)最小是7。         （   ）2、一個盒子里有紅黃兩種棋子，我任意摸一次一定能摸到紅棋子。（）3、世界上每天都有人在死亡。（）4、把一張長方形紙分成7份，其中的3份是這張紙的 3/7。（    ）5、分子與分母相等的分數(shù)等于1。（    ）三、用豎式計算。（

5、帶*的要驗算）。*549+372= *1000-678= 408-199= 768×9= 608×5= 2500×4=二、解決問題1、把一個長12厘米，寬8厘米的長方形框架圍成一個正方形框架。正方形框架的邊長是多少厘米？2、一個長方形的周長是50厘米，它的長是20厘米，寬是多少厘米？3、用一根鐵絲圍了一個邊長12厘米的正方形，如果把這根鐵絲改圍一個長方形，長是15厘米，寬是多少厘米？4、一張紙平均分成9份，其中5份用來折紙鶴，4份用來折紙船。折紙鶴用的紙比折紙船用的紙多幾分之幾？5、一副乒乓球拍26元，一個乒乓球2元。用50元錢買一副乒乓球拍，剩下的錢還能買幾個乒

6、乓球？ 6、夾豆比賽中，紅紅5分鐘夾了325個豆豆，陽陽7分鐘夾了426個豆豆，他們誰夾的快？7、李強今天用了25分鐘就到學校了，他到校時間是7時40分，李強幾點從家出發(fā)的？8、一個長方形的游泳池長28米，寬12米。王爺爺每天堅持走2圈，王爺爺每天走多少米？ 9、一根木料鋸成3段要6分鐘。假如每次鋸的時間相同，那么鋸6段要多少分鐘？ 10、一筐雞蛋連筐共重150千克，賣了一半雞蛋后，連筐共重80千克。這筐雞蛋重多少千克？ 清水混凝土的配合比設計中，要針對當?shù)厮?、砂石、外摻料及外加劑等原材料影響混凝土質(zhì)量的多種因素進行分析，確定主要控制因素，并從經(jīng)濟性和使用要求綜合考慮，優(yōu)選出符合生產(chǎn)條件的最

7、優(yōu)方案組合。obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creative work, giving full play to subjective initiativ

8、e, put an end to implement the conference meeting, to document the implementation of documents etc. Improve the scientific and democratic decision-making mechanism, improve and implement the decision to solicit the views of experts, the public hearing system. Improve the important decision of risk a

9、ssessment mechanism and legal review mechanism. 3, to promote team unity. Uphold and improve the system of annual party book talk heart to heart, mind and Party members, Party members to exchange each other not less than 2 times. The implementation of sound team democratic life system, consolidate a

10、nd enhance the party's mass line educational practice will promote the achievement of the topic of democratic life, criticism and self-criticism normalization, a long-term. Adhere to the party on the basis of the principle of unity, enhance internal communication, strengthen internal supervision

11、, self Sleep maintenance team collective image and authority. (three) to ensure the execution is not strong or disguised to resist government decrees issues. Individual Bureau leadership team members lack of learning political theory system, not from the objective reality, not with the party's i

12、nterests above all the principles to deal with personal problems. In the specific work safety supervision in the execution is not strong, in the implementation of the decision to deploy the discount, make choices, engage in work, the implementation of the agreement, uncomfortable is not performed, o

13、pen or disguised to resist, the lack of subject consciousness of the party organization, the lack of resist in society all kinds of bad habits and unwholesome tendencies of courage Gas and courage. Such as the liability insurance of safe production work, individual leaders that have someone arrested

14、, and no funding, not in the global chess perspective to the countryside to carry out daily inspection, found none of my business acceptance of the resumption of production in an armchair, with a pen, indifferent. Corrective measures: (LED Leadership: Luo Mingjun, rectification time: before Septembe

15、r 25th, insist for a long time) 1, to strengthen the sense of responsibility, work to solve the lack of decent occupation explain away, conduct problems. To establish the overall concept, eliminate departmentalism. Strict assessment and accountability, to solve the spiritual slack, nianqingpazhong, status quo, To establish and perfect the muddle along and other issues. Bureau staff conduct work regulations, standardize the behavior