最新人教版二年级下册数学书中的应用题及答案名师优秀教案.doc

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1、人教版二年级下册数学书中的应用题及答案原来有22人看戏,来了13人,又走了6人,现在看戏的有多少人, 面包房做了54个蛋糕,第一组买了22个,第二组买了8个,还剩多少个蛋糕,(运用两种方法进行解答) 男生有22人,女生有21人,其中有16人参加比赛,还有多少人没参加, 3个小组一共收集了94个易拉罐,一组收集了34个,二组收集了29个,三组收集了多少个, 羊圈里原来有58只羊,先跑了6只,又跑了7只,现在羊圈里面有多少只羊, 小明今年8岁,爸爸今年35岁。爸爸50岁时,小明多少岁, 小熊爸爸、妈妈和哥哥都掰了9个玉米,小熊掰了6个,它们家一共掰了多少个玉米, 小兔一家种了5行萝卜,每行9个,它

2、们准备送给邻居兔奶奶15个萝卜,还剩多少个, 28、票价:儿童票每张:5元; 成人票每张:8元 小明和爸爸、妈妈一起去动物园玩,用20元买票够吗, 18页例4 把12个竹笋平均放在4个盘里,每盘放3个。 可以用除法计算:12?4=3 读作:12除以4等于3 19页例5 20个竹笋,每4个放一盘,能放5盘 20 ? 4 = 5 被除数 除数 商 22页10 每条船上有3人,4条船上共有( )人 12人坐4条船,平均每条船上有( )人 12人,每3人坐一条船,需要( )条船 ?+?+?+?=8 ?= 12=?+?+? ?= 23页例1 (1)12个桃,每只小猴分3个,可以分给几只小猴, 12?3=

3、4 第一只分3个,12-3=9 第二只分3个,9-3=6 第三只分3个,6-3=3 第四只分3个,正好分完 1只小猴分3个,2只小猴分6个,、可以用乘法口决算。 想:3和几相乘得12,三(四)十二,商是4。 你喜欢哪种方法, (2)12个桃平均分给4只小猴,每只小猴分几个, 12?4=3 (三)四十二,商是3。 你是怎么算的, 24页例2 小树苗,每行栽4棵,可以栽6行,一共有多少棵树苗, 46=24 24棵小树苗,每行栽4棵,可以栽几行, 24?4=6 24棵小树苗,栽6行,每行几棵, 24?6=4 29页例3 15人做游戏,分成3组,每组几人, 15?3=5(人) 15人做游戏,每组5人,

4、可以分成几组, 15?5=3(组) 想:如果又来了3人,分成3组,每组平均应有几人, (15+3)?3=6(人) 做一做 一共有12个苹果,小刺猬每次运3个,几次可以运完, 12?3=4(次) 你还能提出用除法计算的问题吗,你会解答吗, 一共有12个苹果,小刺猬分4次运完,每次平均运几个, 12?4=3(个) 30页1 5名小朋友一共做了30个风车,平均每人做几个, 30?5=6(个) 30页2 有18棵白菜,每筐装6棵,需要几个筐, 18?6=3(个) 31页例4 在儿童商店,12元可以买3辆小汽车,我想买1辆小汽车,应付多少钱, 12?3=4(元) 在儿童商店,12元可以买3辆小汽车,我想

5、买5辆小汽车,应付多少钱, 12?35=20(元) 32页1 有2箱饮料,每箱有8瓶,把这2箱饮料分给4个同学,每个同学分几瓶, 28=16(瓶) 16?4=4(瓶) 32页2 2张纸可以做8朵花,一共有5张纸,可以做多少朵花, 8?2=4(朵) 45=20(朵) 32页3 有24个气球,平均分给4人,每人几个气球, 24?4=6(个) 有24个气球,平均分给6人,每人几个气球, 24?6=4(个) 32页4 9只小白免,每只吃2个萝卜,一共需要多少个萝卜, 92=18(个) 33页5 一个茶杯2元钱,妈妈用10元钱可以买几个茶杯, 10?2=5(个) 一副手套5元钱,妈妈用10元钱可以买几副

6、手套, 10?5=2(副) 34页9 我们班有30人,6人一个小组,可能分成几个小组, 30?6=5(个) 34页10 有4只小免,小猴的只数是小免的3倍,每2只小猴一组,可以分成几组, 34=12(只) 12?2=6(组) 36页3 有24本新练习本,平均分给6人,每人几本, 24?6=4(本) 有24本新练习本,第人4本,可以分给几人, 24?4=6(人) 52页7 二年级电脑小组共有24人,如果3人合用一台电脑,需要几台, 24?3=8(台) 二年级电脑小组共有24人,如果现在有6台电脑,你打算怎么安排, 24?6=4(人) 4个人使用一台电脑 52页9 一张电影票8元钱,我们有40元,

7、能买几张张电影票, 40?8=5(张) 53页11 小朋友们玩拔河比赛,分成A、B两队,每队8人,获胜队的奖品是48本书,负队的奖品是24本书 (1) 获胜队的队员平均每人可得几本书, 48?8=6(本) (2) 你还能提出什么问题, 负队的队员平均每人得几本书, 24?8=3(本) 54页2 小红摆一架飞机用了5根小棒,小丽用10根小棒摆了2架飞机,是小红的2倍,小强摆了3架飞机,用的小棒根数是小红的几倍, 35=15(根) 15?5=3(倍) 55页3 小朋友们参加文艺演出,唱歌的有35人,跳舞的有7人,唱歌的人数是跳舞的几倍, 35?7=5(倍) 56页2 一台台灯49元,一本台历7元,

8、台灯的价钱是台历的多少倍, 49?7=7(台) 56页3 跳绳比赛,一号跳了64下,二号跳了56下,三号跳了8下,四号跳了40下, 二号运动员跳的是三号的几倍, 56?8=7(倍) 你还能提出什么问题, 四号运动员是三号的几倍, 40?8=5(倍) 57页6 同学们在校门口摆4行月季花,每行9盆。还要摆6盆蝴蝶花,一共摆了多少盆月季花, 49=36(盆) 月季花的盆数是蝴蝶花的几倍, 36?6=6(倍) 59页例 同学们到游乐园去玩,玩划船游戏时,每条船坐4人,一共需要6条船。玩碰碰车游戏时,每辆车坐3人,一共需要几辆车呢, 46=24(人) 24?3=8(辆) 60页1 学校宣传牌上左边有4

9、棵树,右边也有4棵,每棵树上有3个三角形,宣传牌上一共有多少个三角形, 243=24(棵) 60页2 18瓶饮料,分给3组同学,每组同学有3人,平均每人分几瓶, 18?3?3=2(瓶) 33=9(人) 18?9=2(瓶) 刘玄哲解法 61页6 小刚和小红要买9元一枝的钢笔,需要花63元钱,他们一共要买几枝钢笔, 63?9=7(枝) 如果小刚和小红要买6元一枝的钢笔,需要多少钱呢, 67=42(元) 62页8 有三个蛋糕,每个蛋糕切8块,分给6个小朋友,平均每人分到几块呢, 38=24(块) 24?6=4(块) 62页思考题 一根绳子长16米,对折以后,再对折,每折长几米,你能想出不同的算法吗,

10、 16?2=8 (米) 8?2=4(米) 63页2 同学们玩跳强比赛,每6人组成一个小组,可以分成6个小组,如果每9人组成一个小组,玩丢手绢,可以分成几个小组呢, 66=36(人) 36?9=4(组) 64页3 动物园里有8只黑鸽子,24只白鸽子。每个窝里住4只。 (1) 白鸽子的只数是黑鸽子的几倍, 24?8=3(倍) (2) 一共需要多少个窝, 24+8=32(只) 32?4=8(个) (3) 你还能提出不同的问题吗, 白鸽子需要几个窝, 24?4=6(个) 65页7 小明生病了,医生给小明开了一瓶30粒的药,医生叮嘱小明,要每天吃三次,每次两片,小朋友,请你算一下,一瓶药够吃几天, 23

11、=6(片) 30?6=5(天) 82页2 仓库里有3个米仓,一号米仓装700袋麦子,二号米仓装800袋麦子,三号米仓装1000袋稻谷 1) 一共有多少袋麦子, (700+800=1500(袋) (2) 麦子比稻谷多多少袋, 1500-1000=500(袋) (3) 你还能提出什么问题, 总共有多少袋米, 1500+1000=2500(袋) 89页7 水果店里,苹果2元500克,桃1元500克,香蕉5元500克,荔枝8元500克,西瓜3元500克,菠萝3元500克 (1) 妈妈买2千克苹果,2千克桃,需要多少钱, 24=8(元) 14=4(元) 8+4=12(元) (2) 小红买500克荔枝给奶

12、奶吃,2500克西瓜小红和爸爸妈妈吃,小红需要花多少钱, 35=15(元) 15+8=23(元) 90页8 一只鹅等于2只鸭的重量,一只鹅6千克,一只鸭多少千克, 6?2=3(千克) 三只鸡的重量等于2只鸭的重量,每只鸡多少千克, 6?3=2(千克) 95页7 购物车里装了36瓶饮料,小明和小刚又抬过来25个装到了购物车里,购物车里一共有多少瓶饮料, 36+25=61(瓶) 92页例1 二年(1)班23人,二年(2)班31人,二年(3)班32人,二年(4)班39人 有一条船,限乘68人。 1、二年(1)班和二年(2)班合乘能坐下吗, 23+31=54(人) 68大于54,能坐下 2、二年(3)

13、班和二年(4)班合乘能坐下吗, 32+39=71(人) 68小于71,不能坐下 93页例2 二年(1)班23人,二年(2)班31人,二年(3)班32人,二年(4)班39人 有一条船,限乘68人。 1、 二年(1)班和二年(2)班同时上船后,二年(3)班还能上几人, 68-23-31=14(人) 2、 二年(3)班上一些人后,还剩多少人, 32-14=18(人) 95页8 篮球比赛,上半场1队得了28人,2队得了43分,2队领先多少分, 43-28=15(分) 下半场2队得分达到67分,1队得分达到45分,下半场2队得了多少分, 67-43=24(分) 99页2 同学们去年植树350棵,今年植树

14、280棵,一共植树多少棵, 350+280= 630(棵) 99页4 明明原来眼镜300度,现在明明的眼镜150度,明明的眼镜度数减少了多少度, 300-150=150(度) 100页6 北京到大连,飞机票620元,火车票147元。乘火车比乘飞机大约便宜多少元, 620-147?470(元) 100页7 一台电风扇245元,一台电饭锅187元,妈妈有400元钱,买这两样东西够吗, 245+187= 432(元) 400小于432,不够 101页10 医生给同学们用一次性注射器打针,一年级150人,二年级170人。两个年级共需要多少个一次性注射器, 150+170= 320 101页12 冷饮店

15、里原有528瓶水,卖出184瓶,大约还有多少瓶, 528-184?350(瓶) 冷饮店里上午卖出219根冰淇淋,下午卖出392根冰淇淋,今天大约卖出多少根, 219+392?610(根) 121页8 A自行车289元,B自行车196元,C自行车315元 A电风扇134元,B电风扇279元,C电风扇125元 我有500元钱,可以买哪种自行车和哪种电风扇, A自行车+A电风扇 B自行车+B电风扇 C自行车+C电风扇 122页13 爸爸带小明去玩碰碰车,3元/人,爸爸一共花了12元,小明共玩了几次, 12?3=4(次) 122页14 小红去邮局寄信,本市贴8角的邮票,外地贴1元2角的邮票,小红有1封

16、信寄本市,3封信寄外地。一共要花多少钱, 31元2角=3元6角 8角+3元6角=4元4角 125页8 商店大减价,收音机原价358元,现价231元,电视机原价965元,现价748元,收音机和电视机大约便宜多少钱, 收音机:358-231?130 (元) 电视机:965-748?220(元) 126页11 饭店有8个碗,14根筷子,可以给几位客人, 14?2=7 7小于8,所以最多给7位客人 126页12 我们班有22名男同学,20名女同学,7名同学一组,全班可以分成几组, 22+20=42(人) 42?7=6(组) 126页13 A袜子5双15元,B袜子1双5元,C袜子3双12元,哪种袜子便宜

17、, A袜子每双:15?5=3元 B袜子每双5元,C袜子每双:12?3=4元 A袜子最便宜 ,英文版 , Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive strictly strategic plan, implementation in accordance with the rules and discipline to manag

18、e the party, strengthen inner-party supervision of major initiatives. The two regulations supporting each other, the adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high standard; around the party discipline, disciplinary rule

19、r requirements, listed as negative list, focusing on vertical gauge, draw the party organizations and Party members do not touch the bottom line . Here, the main from four square face two party rules of interpretation: the first part introduces two party Revised regulations the necessity and the rev

20、ision process; the second part is the interpretation of the two fundamental principles of the revision of laws and regulations in the party; the third part introduces two party regulations modified the main changes and needs to grasp several key problems; the fourth part on how to grasp the implemen

21、tation of the two regulations of the party. and revised the necessity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading cadres honest politics several guidelines and column 1 by 2015 to strengthen party laws and regulations focus. Two p

22、arty regulations revision work lasted a Years, pooling the wisdom of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritance and innovation; follow the correct direction, grasp the limited goals, adhere t

23、o the partys leadership, to solve the masses of the people reflect a focus on the problem. The new revision of the and , reflects the partys 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experience of studying and implementing the General Secretary

24、Xi Jinping series of important speech, reflects the partys eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of in based on revised, the promulgation and implementation of January 2010, to strengthen the construction of the contingent of leading cadres pla

25、y an important role. But with the party to manage the party strictly administering the deepening, has not been able to fully meet the actual needs. Content is too complicated, eight prohibition, 52 are not allowed to hard to remember, and also difficult to put into practice; the second is concisely

26、positive advocated by the lack of prohibited provisions excessive, no autonomy requirements; the third is banned terms and discipline law, both with the party discipline, disciplinary regulations repeat and Criminal law and other laws and regulations repeat; the fourth is to clean the theme is not p

27、rominent, not for the existing problems, and is narrow, only needle of county-level leading cadres above. is in 1997 based on revision, in December 2003 the promulgation and implementation, to strengthen the construction of the party play very important role. Along with the development of the situat

28、ion, which many provisions have been unable to fully meet the comprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws and regulations Repetition; two is the political discipline regulations is not prominent, n

29、ot specific, for violation of the party constitution, damage the authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline for the leading cadres, does not cover all Party members. Based on the above situation, need to and the two

30、 is likely to be more relevant regulations first amendment. By revising, really put the authority of Party discipline, the seriousness in the party tree and call up the majority of Party members and cadres of the party constitution of party compasses party consciousness. (II) two party regulations r

31、evision process the Central Committee of the Communist Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth session of the Central Commission for Discipline Inspection, on the revised regulations made cle

32、ar instructions. According to the central deployment, the Central Commission for Discipline Inspection from 2014 under six months begin study two regulations revision. The Standing Committee of the Central Commission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a spe

33、cial meeting to study two regulations revision, amendment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secretary of the Party committee, Secretary of the Discipline Inspection Commission, part of the central

34、 ministries and state organs Department The first party committee is mainly responsible for people, views of experts and scholars and grassroots party organizations and Party members. Approved by the Central Committee of the Communist Party of China, on 7 September 2015, the general office of the Ce

35、ntral Committee of the Party issued a notice to solicit the provinces (autonomous regions, municipalities) Party, the central ministries and commissions, state ministries and commissions of the Party (party), the General Political Department of the military, every 3 people organization of Party of t

36、wo regulations revision opinion. Central Commission for Discipline Inspection of extensive solicitation of opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Central Committee Political Bureau Standing Committee and the Political Bureau of the Central

37、Committee After consideration of the two regulations revised draft. On October 18, the Central Committee of the Communist Party of China formally issued two regulations. Can say, two laws amendment concentrated the wisdom of the whole party, embodies the party. Second, and revision of the basic prin

38、ciples of two party regulations revision work and implement the partys eighteen, ten eight plenary, the spirit of the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping important instructions on the revised and , highlighting the ruling party characteristics, s

39、erious discipline, the discipline quite in front of the law, based on the current, a long-term, advance as a whole, with Bu Xiuding independent and . Main principle is: first, adhere to the party constitution to follow. The constitution about discipline and self-discipline required specific, awaken

40、the party constitution of party compasses party consciousness, maintaining the authority of the constitution. General Secretary Xi Jinping pointed out that no rules, no side round. Party constitution is the fundamental law, the party must follow the general rules. In early 2015 held the eighth sessi

41、on of the Central Commission for Discipline Inspection Fifth Plenary Session of the 16th Central Committee, Xi Jinping again pointed out that constitution is the party must follow the general rules, but also the general rules. the revision of the and is Method in adhere to the regulations establishe

42、d for the purpose of combining rule of virtue is to adhere to the party constitution as a fundamental to follow, the constitution authority set up, wake up the party constitution and party rules the sense of discipline, the party constitution about discipline and self-discipline specific requirement

43、s. 4 second is to adhere to in accordance with the regulations governing the party and the party. The Party of rule of virtue de, mainly refers to the partys ideals and beliefs, excellent traditional style. The revised the closely linked to the self-discipline, insisting on the positive initiative,

44、for all members, highlight the vital few, emphasized self-discipline, focusing on the morality, and the majority of Party members and the ideological and moral standards. The revised Ji method separately, Ji, Ji Yan to Method, as a negative list, emphasizing the heteronomy, focusing on vertical gaug

45、e. Is this one high and one low, a positive reaction, the strict party discipline and practice results transformation for the integration of the whole party to observe moral and discipline requirements, for the majority of Party members and cadres provides benchmarking and ruler. Third, insist on to

46、. In view of the problems existing in the party at the present stage, the main problems of Party members and cadres in the aspect of self-discipline and abide by the discipline to make clearly defined, especially the partys eighteen years strict political discipline and political rules, organization and discipline and to implement the central eight provisions of the spirit against the four winds and other requirements into Disciplinary provisions. Not one pace reachs the desig

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