初一入学考试试卷

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初一入学考试100题

初一入学考试100题

初一入学考试题专练100题(含参考答案)一、选择15题。

1.要使8x 是假分数,9x是真分数,x =( ) A .7 B .8 C .9 D .不存在 2.下面各数能同时被2、3、5整除的数是( )A .215B .370C .420D .684 3.25的分母增加15,要使分数大小不变,分子应扩大( ) A .4倍 B .3倍 C .15倍 D .6倍4.将13米平均分成( )份,每份是118米。

A .18 B .54 C .6 D .95.空桶里装9杯水或8碗水便可装满,现将3杯水和4碗水倒入空桶,水面上升到空桶的( )A .13 B .12 C .56 D .496.1.01米表示( )A. 一百零一米 B .1米1分米 C .1米1 厘米 D. 1米1毫米 7.下面各题中,结果最大的算式是( ) A .0.76×34 B .0.76÷34C .0.76×0.1D .0.76÷0.1 8.大圆半径是小圆半径的2倍,大、小两圆的面积比是( )A .2:1B .4:1C .8:1 9.下面图形中,能折成正方体的是( )10.把一个长方形框架拉成一个平行四边形, 则平行四边形面积( )原来的长方形面积A .大于B .等于C .小于 11.下面各式中,计算结果比a 大的是( )。

(0a >) 1333A .3:4B .4:3C .4:5D .7:5 13.等腰三角形一个底角的度数是450,这是一个( )三角形。

A .锐角B .钝角C .直角D .等边 14.张远按右边的利率在银行存了10000元,到期算得税前的利息共612元,他存了( )年。

A .5B .3C .2D .1 15.把28.26立方米的沙子堆成高是3米的圆锥形沙堆, 沙堆的底面积是( )平方米。

A .6.28B .28.26C .12.56D .9.42二、填空20题。

1.一项工程,甲工程队3天完成了它的16,甲工程队每天完成它的( ),余下的工程还要( )天才能完成。

初一新生入学考试及分班考试地理试卷及答案

初一新生入学考试及分班考试地理试卷及答案

初一新生入学考试及分班考试地理试卷及答案一、选择题(每小题2分,共30分)1. 以下国家中,面积最小的是:A. 中国B. 加拿大C. 日本D. 孟加拉国2. 亚洲大陆上最长的河流是:A. 长江B. 黄河C. 尼罗河D. 隆江3. 我国的首都是:A. 上海B. 北京C. 广州D. 成都4. 以下哪个是欧洲的国家?A. 巴西B. 日本C. 波兰D. 加拿大5. 以下哪个不是我国的四大直辖市?A. 北京B. 上海C. 深圳D. 重庆二、填空题(每小题2分,共10分)1. 靠近南海的我国省份是广东省。

广东省。

2. 我国最长的河流是长江。

长江。

3. 我国的最高山峰是珠穆朗玛峰。

珠穆朗玛峰。

4. 人口最多的国家是中国。

中国。

5. 东京是日本的首都。

日本的首都。

三、简答题(每小题5分,共20分)1. 简述天文学家是如何判断一个地方的经度和纬度的。

答:天文学家通过观测天体在天空中的位置来判断地方的经度和纬度。

他们使用望远镜观测特定的天体,比如恒星或行星,并结合时间观测,计算出特定地方的经度和纬度坐标。

2. 解释地壳运动对地理环境的影响。

答:地壳运动是地球上地壳板块的移动和变形。

这些运动会导致地球表面的地形变化,如山脉的形成和地震的发生。

地壳运动还会影响地球上的气候、水文循环和生态系统。

地壳运动对地理环境有重要影响,决定了地球各地的地形和地貌特征。

3. 什么是环境保护意识,为什么保护环境很重要?答:环境保护意识是人们对于环境问题的认识和关注,包括了对自然资源的合理利用、环境污染的防治、生态平衡的保护等方面的观念和行动。

保护环境很重要,因为人类的生活和发展依赖于环境资源,环境污染和破坏会对人类的健康和生存造成威胁。

同时,环境保护也涉及到保护生物多样性、维护生态平衡,以及保护地球的可持续发展。

四、写作题(共30分)请你结合自己的实际情况,简要介绍你所在城市的地理特点和旅游景点。

答:我所在的城市是上海,位于中国东部沿海地区。

长沙一中初一入学考试英语试卷(含答案)精选全文

长沙一中初一入学考试英语试卷(含答案)精选全文

可编辑修改精选全文完整版湘一实验中学入学考试英语试题I.听力(共20小题,计20分)A)从下列各组单词中选出你所听剑的单词,并把其标号填在答题卡上。

每题读两遍。

1. A.bad B.pan C.bag D.fat2.A.cold B.old C.goat D.road3. A.Look B.book C.cook D.foot4. A.where B.there C.hair D.chair5. A. birthday B. Thursday C.Tuesday D.holidayB)从下列各组句子中选出你所听到的句子,并把其标号填在答题卡上。

每题读两遍。

6.A.I am a new student in your class.B.You are a new student in my class.C.We are ne w students in your class.D.You are new students in our class.7. A. My first name is Black, and my last name is Smith.B. My first name is John, and my last name is Smith.C. My last name is Smith,and my first name is Black.D. My last name is Smith,and my first name is John.8.A.His birthday is on the l3th of February.B.His birthday is on the l4th of February.C.Her birthday is on the 13th of February.D.Her birthday is on the l4th of February.9.A.I go to school by bike every morning.B.I go to school on foot every morning.C.We go co school by bus every morning.D.We go to school by car every morning.10.A.My brother is reading beside a tal1 tree there.B.My brother is reading under a tal1 tree there.C.My brother is reading beside a tall tree over there.D.My brother i s reading under a tall tree ever there.C)从下列各组4个选项中选出最佳答案回答你所听到的内容,并把其标号填在答题卡卜。

广州一中初一入学考试英语试卷(含答案)

广州一中初一入学考试英语试卷(含答案)

广州一中初一入学考试英语试卷(含答案)第一部分选择题 (共20分)1. A2. B3. C4. A5. B6. C7. A8. B9. C10. A第二部分阅读理解 (共40分)阅读A11. D12. C13. B14. A15. D阅读B16. C17. A18. B19. D20. C第三部分问答题 (共40分)23. The benefits of regular exercise include improved physical health, increased energy levels, reduced stress and anxiety, better sleep quality, and enhanced mood. Regular exercise also helps prevent chronic diseases and can contribute to a longer, healthier life.24. There are several ways to conserve water at home, such as fixing leaks, using water-saving appliances, taking shorter showers, and watering plants during cooler times of the day. Additionally, being mindful of water usage while washing dishes and doing laundry can also help conserve water.25. In order to protect the environment, it is important to reduce, reuse, and recycle. By reducing our consumption, reusing items whenever possible, and properly recycling materials, we can minimize waste and conserve resources. Additionally, using eco-friendly products and practicing sustainable habits can also contribute to environmental protection.答案解析请注意,以上答案仅供参考,考生可以根据自己的实际答题情况进行核对。

福建省福州市2024-2025学年七年级上学期新生入学考试英语试题

福建省福州市2024-2025学年七年级上学期新生入学考试英语试题

福州市2024~2025学年新初一入学测试卷英语学科试卷(满分:100分;完卷时间:60分钟)I. 听力(共三节,20小题;每小题1分,满分20分)第一节听句子听下面五个句子,从每小题所给的A、B、C三幅图中选出与句子内容相符的选项。

1. A. B. C.2. A. B. C.3. A. B. C.4. A. B. C.5. A. B. C.第二节听对话听下面七段对话,从每小题所给的A、B、C 三个选项中选出正确答案。

听第1段对话,回答第6小题。

6. Where is Jack from?A. America.B. Japan.C. England.听第2段对话,回答第7小题。

7. What class is Amy in?A. She’s in Class Five, Grade Eight.B. She’s in Class Four, Grade Seven.C. She’s in Class Three, Grade Seven.听第3段对话,回答第8小题。

8. Who is Tom’s sister?A. Amy.B. Alice.C. Lily.听第4段对话,回答第9小题。

9. What color is Maria’s T-shirt?A. Blue.B. Pink.C. Yellow.听第5段对话,回答第10、11 小题。

10. What does Mrs. Smith look like?A. Her hair is short.B. She is tall.C. She has long black hair.11. What color does Mrs. Smith like?A. Black.B. Green.C. Red.听第6段对话,回答第12、13小题。

12. What does Sam buy for his sister?A. A pen.B. A pencil.C. A pencil box.13. What color schoolbag does Linda want to buy?A. Blue.B. Black.C. Yellow.听第7段对话,回答第14、15小题。

2024年新初一入学分班考试英语模拟试卷附参考答案

2024年新初一入学分班考试英语模拟试卷附参考答案

2024年新初一入学分班考试模拟试卷英语试题(满分:100分;考试时间:80分钟)注意事项1.本试卷共四部分,共七大题,满分100分,考试时间90分钟。

2.请务必在答题卡上答题,在试卷上答题无效。

3.考试结束后,请将试卷和答题卡一并交回。

一、单项选择题(本题有10小题,每小题1分,共10分)1.What is this? It's _____V.A. aB. anC.\D. the2.—Jenny, is that boy with glasses ___ new classmates?—Yes. Let's say hello to ____.A. our; heB. us; himC. our; hisD. our; him3. —Hello, Jim! _____ is my best friend, Jill.—Nice to meet you, Jill.A. ThisB. ThatC. HeD. It4.—Here ____ some books for you, Tom.—Thanks a lot.A. isB. areC.amD. be5.Li Lei is a student. He is in Green _____.A. middle schoolB.Middle schoolC.middle SchoolD.Middle School6. This is Mary Miller.Mary is her _____ and Miller is her _____.A. first name; middle namest name; middle nameC.first name; last nameD. last name; first name7. —You look very beautiful.—_______.A. OkB. Yes, I amC. Thank youD. No, I'm not8. Look at the wall. Some picture are ___ it.A.onB. inC.toD. at9. How many ____ can you see in the picture?A. tomatosB. tomatoesC. tomatoD. The tomato10. Li Lei often ___ Lin Tao ______ his English.A. help; toB. helps; withC.helps; toD. help; with二、完形填空(本大题有10小题,每小题1.5分,共15分)I have many friends, and they all have their favorite subjects. John's favorite subject is computer because he 11 computer can help him a lot in 12 study. He is a computer 13.He likes playing computer games 14 much,and he is good at playing it.Jack likes art best 15 he likes drawing pictures a lot. Mary likes 16 because her father is Chinese. Her father 17 her Chinese at home. She loves China very much,and she 18 to know more about China.Bob thinks math is very 19,so he likes math best. David likes P. E. because he likes 20 sports. He is good at playing basketball and soccer.11.A.thinks B.thanks C.talks D. tells12.A.him B.his C. he D.her13.A.fan B.student C.man D.story14.A.too B. to C.a lot D.very15.A.so B.also C.because D.thenputer B.game C.Chinese D.English17.A.teaches B.likes C.learns D.has18.A.gets B.wants C. helps D.buys19.A.boring B.interesting C.difficult D.relaxing20.A. joining B.making C.going D.doing三、阅读理解(本大题有20小题,每小题2分,共40分)AHi, everyone! My name is Guo Ailun. And my English name is Allen. I come from Liaoning,China. I'm 22 years old, and I look really tall and strong. I'm a basketball player.I love basketball very much and I play it quite well.My uncle was a great basketball player in the national team (国家队) in the past and my father loves basketball too. So I started to play basketball early. And I began to play for our country as a player when I was only 14.Basketball is my favourite sport.I play it every day.It makes me happy.Tony Parker is my favourite basketball player in NBA.I want to be a member of NBA and play with Parker some day.I hope my dream comes true.Do you want to be a basketball player like me? Then you must play it hard.21.Allen is ____ years old.A.twelveB.fourteenC.twenty-twoD.thirty—four22.Allen's ____ was a basketball player.A.brotherB.fatherC.uncleD.mother23.Basketball makes Allen ____.A.strongB. tallC.busyD.happy24.Allen's dream is to _____.A.be a basketball playerB.be a member of NBAC.meet Parker some dayD.talk about basketball with Parker25.Which is the best title (标题) of the passage?A.Allen and basketballB.Allen's basketball familyC.Play basketball hardD.Allen's hero,Tony ParkerBThere are four people in the twins’family.They are the twins,their father and their mother.The twins’ names are Lucy and Lily.They are fourteen.They are in the same class in the NO.1 Middle School. They are very good students. They not only work very hard but also sing very well.They want to join the music club. Lucy wants to play the piano. Lily can play the guitar.Their father,Mr. King, is a teacher.He teaches English in a school near his home.Their mother,Mrs. King,is a teacher, too.She teaches Chinese.Mr. and Mrs. King are in different schools.But they have the same hobby—play the guitar.26.Mr.King is a good ______.A.driverB.workerC.teacherD.farmer27.Lily can ______.A.play the pianoB.draw horsesC.play the guitarD.play chess28.Mrs. King is a _____.A.Math teacherB.Chinese teacherC.English teacherD.doctor29.Their parents work _____.A.in the same schoolB.in the hospitalC.in the factoryD.in different schools30.The twins are in the ______Middle School.A.No.5B.No.1C.No.4D.No.2CHello, my name is Peter. I'm 12 years old. I have a picture. In the picture are two boys and a dog.Do you know the two boys?I know them.They are Jim and Frank.Jim and Frank are brothers.They have yellow hair and big blue eyes. They are my good friends. Now they are in China with their parents. We are in the same middle school and the same class. Their mother Mrs. Green is our English teacher.She is very nice.All my classmates love her.Harry is the name of the dog.He is yellow and big.He is my friend,too.We four often play together on Sunday.31.Jim is Frank's ______.A.grandfatherB. fatherC.uncleD.brother32.Jim and Frank live (居住) in China with their ____.A.friendsB.sistersC.parentsD.grandparents33.Mrs. Green is _____.A.Peter's teacherB.Peter's motherC.Jim's auntD.Frank's sister34.Harry is a _____ dog.A.whiteB.yellowC.blackD.brown35.What do we know from the passage?A.Frank's father is in China now.B.Peter can speak good English.C.Jim and Frank have black hairD.Harry is Peter's dog.DHello,everyone!Welcome to Haikou.You are going to stay in Mandarin Hotel,a 5-star hotel.It was built in 1998 and is one of the best hotels in Haikou.It is near Wanlu Gardenon Binhai Road.It is 5 minutes' walk from the seaside and 10 minutes' bus ride from the city centre.Buses No,7 and No.41 can take you there.The hotel has large rooms with computers,TV sets and telephones.Hot water is offered (供应) 24 hours.There is a shopping centre which is open from 9:00 a.m. to 10:30 p.m.The coffee bar is open at the following time 10:00—23:00.There is a free swimming pool.You can enjoy yourselves there.Hope that you will have a great time during your stay in Haikou.36.The passage mainly introduce _____ to everyone.A.HaikouB.Mandarin HotelC.Wanlu GardenD.Binhai road37.Mandarin Hotel is ____.A.one of the hotels in HaikouB.convenientC.among the best hotels in HaikouD.A,B and C38.It takes 5 minutes to go to Mandarin Hotel from the seaside ______.A.by busB.by bikeC.on footD.by car39.How can we get to the mandarin Hotel from the centre of the city in 10 minutes?A.By plane.B.By train.C.By bus.D.By bike.40.What's the Chinese meaning of the underlined word “free”?A.免费的B.自由的C.有空的D.松散的四、任务型阅读(本题有5题,每小题2分,满分10分)(左栏是五个人的体育爱好,右栏是七则体育俱乐部招揽会员的广告,请为每个人选择最合适的一项)五、词语应用(每小题1分,满分10分)A)根据句意及所给汉语提示,写出句中所缺单词。

实验中学初一新生入学考试生物试卷附答案

实验中学初一新生入学考试生物试卷附答

1. 单选题单选题
a. 以下哪个不是生物的特征?
- A. 能够自我繁殖
- B. 由细胞组成
- C. 能够进行光合作用
- D. 遗传信息存储于DNA中
答案:C
b. 植物细胞和动物细胞有哪些共同的特征?
- A. 能够进行呼吸作用
- B. 可以发光
- C. 有细胞壁
- D. 能够感知周围环境
答案:A
2. 判断题判断题
a. 动植物细胞都含有细胞核。

答案:是
b. 绿叶中发生的光合作用可以将太阳能转化为化学能。

答案:是
3. 简答题简答题
请简要描述细胞的组成和功能。

答案:细胞是生物体的基本单位,由细胞膜、细胞质和细胞核
组成。

细胞的功能包括维持生命的基本机能、进行代谢和物质运输、遗传信息的储存和传递等。

请简要介绍光合作用的过程。

答案:光合作用是植物利用太阳能将二氧化碳和水转化为氧气
和葡萄糖的过程。

其中,光能被光合色素吸收后,通过光合作用中
的反应,将二氧化碳固定为有机物,并释放出氧气。

4. 应用题应用题
某种植物在不受光照条件改变的情况下,可以进行光合作用的
同时还能进行呼吸作用,请问它在不同条件下,光合作用和呼吸作
用的速率是否相同?
答案:在不同条件下,该植物的光合作用和呼吸作用的速率通常是不同的。

光合作用的速率受到光照强度、二氧化碳浓度等因素的影响,而呼吸作用的速率受到温度等因素的影响。

因此,在不同条件下,光合作用和呼吸作用的速率可能会有所不同。

长沙一中初一入学考试英语试卷(含答案)

湘一实验中学入学考试英语试题I.听力(共20小题,计20分)A)从下列各组单词中选出你所听剑的单词,并把其标号填在答题卡上。

每题读两遍。

1. A.bad B.pan C.bag D.fat2.A.cold B.old C.goat D.road3. A.Look B.book C.cook D.foot4. A.where B.there C.hair D.chair5. A. birthday B. Thursday C.Tuesday D.holidayB)从下列各组句子中选出你所听到的句子,并把其标号填在答题卡上。

每题读两遍。

6.A.I am a new student in your class.B.You are a new student in my class.C.We are ne w students in your class.D.You are new students in our class.7. A. My first name is Black, and my last name is Smith.B. My first name is John, and my last name is Smith.C. My last name is Smith,and my first name is Black.D. My last name is Smith,and my first name is John.8.A.His birthday is on the l3th of February.B.His birthday is on the l4th of February.C.Her birthday is on the 13th of February.D.Her birthday is on the l4th of February.9.A.I go to school by bike every morning.B.I go to school on foot every morning.C.We go co school by bus every morning.D.We go to school by car every morning.10.A.My brother is reading beside a tal1 tree there.B.My brother is reading under a tal1 tree there.C.My brother is reading beside a tall tree over there.D.My brother i s reading under a tall tree ever there.C)从下列各组4个选项中选出最佳答案回答你所听到的内容,并把其标号填在答题卡卜。

初一入学考试题及答案

初一入学考试题及答案一、选择题(每题2分,共20分)1. 下列哪个选项是正确的成语?A. 杯弓蛇影B. 杯弓蛇影(错误)C. 杯弓蛇影(错误)D. 杯弓蛇影(错误)2. 下列哪个选项是正确的数学运算结果?A. 3 + 5 = 7B. 3 × 5 = 15C. 3 - 5 = -2D. 3 ÷ 5 = 0.63. 以下哪个选项是正确的英语单词拼写?A. colerB. colorC. collerD. cooler4. 以下哪个选项是正确的历史事件?A. 秦始皇统一六国B. 秦始皇统一三国C. 秦始皇统一五代D. 秦始皇统一十国5. 以下哪个选项是正确的物理概念?A. 重力是物体对地球的吸引力B. 重力是地球对物体的吸引力C. 重力是物体对月球的吸引力D. 重力是月球对物体的吸引力6. 下列哪个选项是正确的化学元素符号?A. 水:HOB. 氧:O2C. 氢:H2D. 氮:N27. 下列哪个选项是正确的生物分类?A. 人类属于动物界、哺乳纲、灵长目、人科、人属、智人种B. 人类属于植物界、哺乳纲、灵长目、人科、人属、智人种C. 人类属于动物界、昆虫纲、灵长目、人科、人属、智人种D. 人类属于动物界、哺乳纲、鸟类、人科、人属、智人种8. 下列哪个选项是正确的地理概念?A. 地球的自转周期是一年B. 地球的公转周期是一天C. 地球的自转周期是一天D. 地球的公转周期是一年9. 下列哪个选项是正确的计算机操作?A. 复制文件使用Ctrl+CB. 粘贴文件使用Ctrl+VC. 剪切文件使用Ctrl+XD. 以上都是10. 下列哪个选项是正确的音乐术语?A. 快板(Allegro)B. 慢板(Adagio)C. 快速(Largo)D. 慢速(Presto)答案:1-5:A, B, B, A, B;6-10:C, A, C, D, A。

二、填空题(每空1分,共10分)1. 圆的周长公式是 _________。

宁波外国语学校初一入学模拟考试卷(含参考答案)

宁波外国语学校初一入学模拟考试卷(含参考答案)一、选择题(每题2分,共40分)1. 下面哪个选项中的词语拼写错误?A. 直接B. 机关C. 家庭D. 街道答案:B2. 下面哪个选项中的词语意思与其他选项不同?A. 愉快B. 高兴C. 快乐D. 难过答案:D3. "蓝天白云,心情愉快。

"这句话中,“蓝天白云”是什么?A. 主语B. 谓语C. 宾语D. 定语答案:D4. 中国的首都是哪里?A. 北京B. 上海C. 广州D. 深圳答案:A5. 以下哪个数字是质数?A. 6B. 11C. 8D. 14答案:B二、填空题(每题2分,共20分)1. 一部手机原价1999元,打折后售价为1499元,打折幅度为____%。

答案:252. "山重水复疑无路,柳暗花明又一村。

"中的"山重水复"和"柳暗花明"属于什么修辞手法?答案:对仗3. 中国有____个省级行政区。

答案:344. "天下兴亡,匹夫有责。

"中的"兴亡"是什么意思?答案:兴盛和衰败5. 以下哪个城市是中国的四大古都之一?答案:西安三、简答题(每题10分,共30分)1. 简述地球的自转和公转。

答案:地球自转是指地球围绕自身轴线旋转一周的运动,地球公转是指地球绕太阳运动一周的轨道运动。

2. 解释人口与资源的关系。

答案:人口与资源的关系是指人口数量和资源供给之间的相互作用关系。

人口数量增加会对资源造成压力,而资源的供给能力也会影响到人口的发展和生活质量。

3. 简述电流的概念和单位。

答案:电流是指电荷在导体中流动的现象,是电荷单位时间通过导体截面的量。

单位是安培(A)。

四、作文题(20分)请根据以下提示,写一篇80字以上的作文。

提示:假如你是班长,请根据你的观察和体验,写一篇关于如何提高班级学习氛围的作文。

答案:(略)。

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2016年初一入学考试试卷
时间:45分钟 分值:100分 姓名:
一、我会填空。

(20×1分)
1. 二亿六千零四万八千写作( ),改写成以“万”作单位的数是( )万;把7.956精确到十分位是( )。

2. 根据比例的基本性质,如果5a=7b,那么a:b=( ):( )。

3. 3升90毫升=( )升 1.35立方分米=( )立方分米( )立方厘米
4.25小时=( )小时( )分 2060克=( )千克
4.( )÷15=18÷( )=5
3=( )(填小数)=( )%=( )折。

5.一个圆的半径是3厘米,它的周长是( )厘米,它的面积是( )平方厘米。

6.一个圆柱的底面直径是4分米,高为5分米,它的表面积是( )平方分米,体积是( )立方分米。

二、我会判断。

(对的打“√”,错的打“×”)(5×2分)
1.小数都比整数小。

( )
2.甲数的41等于乙数的6
1则甲乙两数之比为2:3. ( ) 3.假分数都比1大。

( )
4.任何一个质数加1必定是合数。

( )
5.半径为2厘米的圆,周长和面积相等。

( )
三、我会选择正确的序号。

(5×2分)
1.大小两个正方形的边长比是5:3,这两个正方形的面积比是( )。

A.20:17
B.25:9
C.5:3
2.一个底面半径为r 的圆柱体的侧面展开图是一个正方形,这个圆柱体的高是( )。

A.πr
B.2π
C.2πr
3.一杯糖水含糖10%,则糖和水质量的整数比是 ( )。

A.1:9
B.1:10
C.1:11
4.要反映病人温度变化情况,护士一般采用( )统计图。

A.条形统计图
B.折线统计图
C.扇形统计图
5甲的53等于乙的5
2,则甲数( )乙数。

(甲、乙两数都不为0) A.大于 B.小于 C.等于 D.无法确定
四、我会计算。

1.直接写出得数。

(8×1分)
306+594= 1-1×53= 0.25×16=
54÷3
8 = 2.8×25%= 21-31= 21×31 = 0÷54+32=
2.用梯等式计算,能简算的要简算。

(4×3分)
(54+
179)÷9 (43+52)×20+125
19.9×99+19.9 63×97-63×92
3.解比例或方程 (4×3分)
65x +31=20
7 3x +4x =21
1254x 0.2:x =85:1.25
五、我会解决问题。

1. 工厂生产一批手表,计划每天生产300只,5天完成,两天后已经生产600只,还剩多少只手表没生产?(5分)
2. 某县今年改造盐碱地14公顷,比原计划多改造了
8
3。

该县原计划改造盐碱地多少公顷?(5分)
3. 一种混凝土由水泥、沙子和石头组成,水泥、沙子和石头的比是2:3:5,要配制这种混凝土60吨,需要水泥、沙子和石头各多少吨?(6分)
4. 一个圆锥形小麦堆,底面周长是2
5.12m,高6m,如果每立方米小麦重800kg,这堆小麦重多少吨?(6分)
5. 学校新建了一座科技活动馆,原计划用边长5分米的方砖铺地,需要1600块这样的方砖,后改用边长为8分米的方砖,需要方砖多少块?(用比例解)(6分)。

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