人教版三年级数学上册期末易错题

1、易错题一、填空。（1）3路公共汽车每隔10分发出一辆，1小时可以发出（ ）辆。（2）一个正方形的周长是20 厘米，它的边长是（ ）厘米。（3）小明上午7:40到校，11:20放学，他上午的在校时间是（ ）时（ ）分。 （4）小花每分钟打52个字，8分钟大约打（ ）个字。（5）用两个边长1厘米的正方形拼成一个长方形，周长减少了（ ）厘米。（6）做10道口算题要约1（ ） （7）7000米+8000米=（ ）千米。（8）36的9倍是（ ），36是9的（ ）倍。（9）把两个周长是6厘米的正方形拼成一个长方形，它的周长是（ ）。（10）米、分米、厘米、毫米这几个相邻单位的进率是（ ）。（11）8个1/

2、7是（ ）。（12）按从小到大的顺序排列起来。 200分米 2020米 2千米 22米 （ ）（13）一个分数，它的分子是4，分母是分子的2倍，这个分数是（    ）。（14）长方形长是20米，是宽的2倍，这个长方形的周长是（  ）米。（15）直尺上1厘米中间有（     ）个小格，每一小格长（     ）毫米。16、有两个长方形，长都是4厘米，宽都是2厘米，如果把它们 拼成一个正方形，这个正方形的边长是（  

3、60;）厘米，周长是（   ）厘米。17、小明从家到学校步行要20分钟，他要在7：45分到校，需（  ： ）从家出发。18、足球比赛15：30分开始，17：10结束，比赛经过了（   ） 时（  ）分。19、一张长方形的纸，对折三次，每小份是这张纸的（     ）。20、把一张长方形纸条平均分成6份，取它的3份，这3份就是这张长方形纸条的（ ），它里面有（ ）个（ ）。21、605×4，积的最高位是（ ）。 22、在一个长35

4、厘米，宽15厘米的长方形纸片上剪下一个最大的正方形，这个正方形的周长是（ ）厘米。二、判断题。1、两个数相除，余数是6，除数最小是7。         （   ）2、一个盒子里有红黄两种棋子，我任意摸一次一定能摸到红棋子。（）3、世界上每天都有人在死亡。（）4、把一张长方形纸分成7份，其中的3份是这张纸的 3/7。（    ）5、分子与分母相等的分数等于1。（    ）三、用竖式计算。（

5、带*的要验算）。*549+372= *1000-678= 408-199= 768×9= 608×5= 2500×4=二、解决问题1、把一个长12厘米，宽8厘米的长方形框架围成一个正方形框架。正方形框架的边长是多少厘米？2、一个长方形的周长是50厘米，它的长是20厘米，宽是多少厘米？3、用一根铁丝围了一个边长12厘米的正方形，如果把这根铁丝改围一个长方形，长是15厘米，宽是多少厘米？4、一张纸平均分成9份，其中5份用来折纸鹤，4份用来折纸船。折纸鹤用的纸比折纸船用的纸多几分之几？5、一副乒乓球拍26元，一个乒乓球2元。用50元钱买一副乒乓球拍，剩下的钱还能买几个乒

6、乓球？ 6、夹豆比赛中，红红5分钟夹了325个豆豆，阳阳7分钟夹了426个豆豆，他们谁夹的快？7、李强今天用了25分钟就到学校了，他到校时间是7时40分，李强几点从家出发的？8、一个长方形的游泳池长28米，宽12米。王爷爷每天坚持走2圈，王爷爷每天走多少米？ 9、一根木料锯成3段要6分钟。假如每次锯的时间相同，那么锯6段要多少分钟？ 10、一筐鸡蛋连筐共重150千克，卖了一半鸡蛋后，连筐共重80千克。这筐鸡蛋重多少千克？ 清水混凝土的配合比设计中，要针对当地水泥、砂石、外掺料及外加剂等原材料影响混凝土质量的多种因素进行分析，确定主要控制因素，并从经济性和使用要求综合考虑，优选出符合生产条件的最

7、优方案组合。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