管理学 点击: 2017-06-20
译林5A国庆节假日作业
灌南县树人实验学校(小学部)
五年级英语假日作业
班级 ________姓名___________家长签字________ 电话号码__________
一、 根据句意、首字母或中文提示写出单词
1. I live in the s___________ floor.
2. Tuesday is the t__________ day of a week .
3. My bag is very __________ (重).I can’t carry it .
4. We are in class now.Please s____________ talking .
5. How many classrooms are there in the school ?( )
6. The computer room is on the third floor .( )
7. Let’s go and have a look . ( )
8. You are so heavy. ( )
9. Yang Ling is on the swing . ( ) 10.Can you show her around?( )
二、单项选择
( )1.__________ there a kite on the table ? A.Are B.Is C.is
( )2.__________ a lot of water in this river . A.There’s B.There are C.There has
( )3.How many ________ are there in the classroom ?; A. desk and chairs B.desks and chairs C.desks and chair ( )4.There ___________ any trees and flowers in the garden .
A.isn’t B.are C.aren’t ( )5.You are too ________ .I can’t __________ you . A.light;push B.high;push C.heavy ;push
( )6.There is a bed __________ the windows. A.between B.in C.on ( )7.There anen’t ____________ storybooks on the desk.
A.some B.any C.a lot ( )8.Can you show ________ around the park ? A.she B.him C.they ( )9.My home is ___________ the third floor.
1
A.on B.in C.at ( )10.There is ________ orange on the fridge.
A.an B.a C.some
三、用所给侧的适当形式填空
1.The library is on the _____________ floor.
2.Let’s go and _______________(play).
3.It’s great ________________(funny).
4.There __________ (be) some bananas on the chair.
5.How many___________(desk) are there in the classroom ?
6.There aren’t __________ (some) hamburgers on the table .
7.Are there any _______(picture) on the wall ? No,there aren’t.
8.Push ___________(I),please!
9.It’s time ____________(have) dinner .
10.There are four ____________(room) in the house.
四、句子配对
I II
( )1.Are there any apples on the tree ?A.There are four pencils.
( )2.How many pencils do you have ? B.Yes ,there are .
( )3.Is there a computer in your bedroom ? C.No,there isn’t.
( )4.Whose room is this ? D.They are in the kitchen.
( )5.Where are the cakes? E.It’s Nancy’s.
五、句型转换
1.There is a lion in the forest .(改为一般疑问句并作肯定回答) ---____________ there a lion in the forest ?
--Yes,__________ is .
2.There are some sweets on the table.(改为一般疑问句并作肯定回答) --________ there __________ sweets on the table ?
No,there __________ .
2
3.There are thirty classrooms in the school .(对划线部分提问) ___________ ____________ classrooms are there in the school ? 4.My classroom is on the first floor . (对划线部分提问)
____________ your classroom ?
5.There are some chairs beside the desk .(改为否定句)
There____________ ___________ chairs beside the desk .
六、 翻译句子
1.---你家有多少房间?----有三间。
---How _________ ___________ are there in your house ?
--____________ ___________ three.
2.---那是谁?----她是南希。她是一位新同学。
--Who’s that ?
---She’s Nancy.She’s a ____________ _____________ .
3.那个公园里有很多的树和花。
____________ ____________ many trees and flowers in the park.
4.厨房在二楼。
The kitchen is ________ the ____________ floor.
七、 阅读短文,判断下列句子是否与短文内容相符,相符的用“T”表示,
不相符的用“F”表示。
There are three people(人们)in Liu Tao’s family,they are his father ,his mother and Liu Tao .His mother is a nurse and his father is a teacher .Liu Tao is a student.
They have a very nice house .In the house ,there’s a study,a big living room,a kitchen,a dining room,two bathrooms and three bedrooms.
In the living room ,there are some chairs ,a table and a big TV.And there are three pictures on the wall.They’re Liu Tao’s drawings.They are very nice.
Liu Tao’s family all like their house very much .
( )1.Liu Tao has no brothers or sisters.
( )2.Liu Tao’s father works (工作) in a school .
( )3.There are nine rooms in Liu Tao’s house ,
( )4.They have three bathrooms and two bedrooms.
( )5.Liu Tao can’t draw any pictures.
3
八、英汉互译。
1.在森林里 6.找到他们的表弟
2.在爸爸妈妈之间 7.饥渴交加的
3.房子旁边的熊 8.在中国很流行
4.在冰箱里 9.太软的
九、 单选。
( )1、There any juice in the fridge.
A. are B. is C. isn’t
( )2、 a lovely doll!
A. How B. What C. why
( )3、--I feel _________. --Here’s a fan and a glass of water.
A. hot and hungry B. cold and thirsty
C. hot and thirsty
( )4、Helen is behind me. I am Helen.
A.between B.in front of C.beside
( )5、I can see a bird the tree.
A.on B.in C.at
( )6、There any books on the desk.
A.isn’t B.aren’t C.are
( )7、There boy and two girls in the garden.
A.have B.is C.are
( )8、 a smart boy! .
A. How B. Who C. What
( )9、The bread is too . I can’t have it.
A. hard B. soft C. hungry
( )10、There’s some in the fridge.
A. caks B. soup C. soups
十、 用所给词的适当形式填空。
4 5.桌子上面有三把雨伞 10.在厨房里
1.There ________ (be) a pen and two pencils in the pencilcase.
2. There _________(be) some bread on the plate .
3.How many ________ (book) are there?
4.There are _________toys on the bed. (some)
5. Are there _________cars in the street ? (some)
6. There is _________milk in the fridge. (some)
7. ______ _______some slides in the garden. (there be)
8. ______ _______some milk in the glass. (there be)
9. ________ _______any flowers in the garden? (there be)
10. ______ ______any milk in the glass? (there be)
十一、 句子配对。
Ⅰ Ⅱ
( )1.Where are the shorts,Mum? A.He is my brother.
( )2.What can you see on the tree? B.You can have some cakes. ( )3.Here is a book for you. C.They are on your bed.
( )4.Who is the boy over there? D.I can see some apples. ( )5.I’m hungry,Tina. E.Thank you. 十二、 按要求完成句子。
1.There is some water in the glass.(改为否定句)
There water in the glass.
2.There is some tea in the cup.(改为一般疑问句)
there tea in the cup?
3.桌上有一些汤。
______ _______ a TV in your bedroom ? No,
_____ _____.
5
小学数学五年级上册试卷(国庆假作业)
小学数学五年级上册试卷 (国庆假期作业)
班级 姓名 等级
一.计算:(38分)
1.口算:(8分)
0.16×5 ﹦ 1.78+2.2 = 1.2×0.5-0.4 = 0.7÷0.01 = 2.5×0.4 = 1.25×8÷1.25 = 6.6÷0.66 = 4÷0.8 = 5.37×0+4.63 = 9.6÷0.6 = 12-3.97= 1.6+2.4×0.3 = 2.列竖式计算:(9分)
3.7×0.016 53×2.07
1.55÷3.9 16.9÷0.13
(保留两位小数) (用乘法验算)
3.求未知数X:(6分)
1.6×X=3.28 X÷0.18 =8.45 1.26÷ X =28
4.简便计算:(15分)
2.37×6.3+2.37×3.7 2.5×1.25×0.32
4.4×25 2.64÷5÷0.2 3.8×10.1
二.填空:(第1题至第6题每个空格一分,第7题2分,第8题4分,共25分)
1. 0.98÷0.7 =( )÷7 2.3÷0.15 =( )÷15
2. 0.78×5 这个算式表示:
5×0.78 这个算式表示: 5.34÷2.1 这个算式表示: 3. 3千克250克 =( )千克 0.75时 =( )分 1小时15分 =( )分 2.35平方米 =( )平方米( )平方分米 4. 7.383838……的简便写法记作( ),它的循环节是( ),
它是( )循环小数。
5. 5.9042保留整数约是( ),精确到十分位约是( ),保留两位小数约是( )。 6. 在( )里填上“=”、“>”或“﹤”。
5.24×0.99( )5.24 10.65÷0.22( )10.65 1÷0.125( )0.125×1 4.39×10( )4.39÷0.1 7. 把下面各数按从小到大的顺序排列,并用“﹤”连接起来 1.426 1.426 1.426 1.426
8.下面是某班级购书的发票,请你把空格填满
三.选择题:(6分)
1.两个因数都是0.7,写成算式是( )
① 0.7×2 ② 0.7×0.7 ③0.7+0.7
2.与0.3×1.21的积相等的式子是( )。
①3×1.21 ②12.1×0.03 ③ 0.03×0.121 ④ 3×0.121 3.下列小数是无限小数的是( )。
①3.912 ②2.141414 ③7.501……
4.两数相除,当除不尽时,如果商用循环小数表示,那么要用( )。 ①大于号 ②等号 ③小于号
5.大于0.5而且小于0.6的数有( )个。
① 0 ② 1 ③ 2 ④ 无数 6. 0.25除以0.15,当除到商1.6时,余数是( )。
① 10 ② 1 ③ 0.1 ④ 0.01
四.列式计算下面各题:(6分)
⑴ 3.46与2.7的积再加上4.08, ⑵ 8与2.4的差 是1.4的多少倍? 和是多少?
五.应用题:(25分)
1.一只大象重5.1吨,是一头牛体重的15倍。这头大象比这头黄牛重多少吨?
2.李明从学校到少年宫,每小时走4.5千米,0.6小时可以到达。如果每小时只走3 千米,要多少小时才能到达?
3. 2台抽水机3小时可以浇地1.2公顷,照这样计算,2台抽水机7小时可浇地多少公顷?
4. 一棵50年树龄的树,产生的氧气价值为3.12万美元,防止大气污染的价值为5.95万美元,那么18棵这样的树产生的生态价值是多少美元?(生态价值指产生的
氧气价值和防止大气污染的价值)
5.一桶油连桶重12千克,卖出油的一半后,连桶重6.75千克。如果每千克油的价
格是4.2元,卖出多少元?
露一手:(第1题至第4题每题2分,第5题至第7题每题4分,共20分)
1.用10千克小麦可磨面粉8千克,平均每千克小麦能磨( )千克面粉。 2.一个两位小数“四舍五入”后取近似值是2.5,原来这个两位小数最小是( )。
3.服装厂有300米布,每套衣服用布3.2米,这些布最多可以做( )套衣服。
4.木工师傅要把一根长2.4米的木条锯成0.4米的小木条,如果每锯一段要3分钟,把这根木条锯完需要( )分钟。
5.3.274的小数部分第100位上的数字是( )。
6.一个剧场设置了20排座位,第一排30个座位,以后每一排都比前一排多2个座位,这个剧场一共有( )个座位。 7.“六一”节时,爸爸、妈妈带小明游公园,买门票共用去10.5元,已知一张大人票价与三张小孩票价相等。一张大人票( )元。
五年级国庆假期作业
中原黄冈学校五年级英语国庆假期作业
姓名
试卷一
一.找出画线部分读音与前面所给单词画线部分相同的单词. (4分) 二. 接龙写单词. (10分)
Miss( ) →__ __ __ ___ ___(聪明) → __ __ __ __(高的) → lady( )→__ __ __ __ __(年轻) →go →(老的) →doll( ) →__ __ __ __(喜欢) →eight( )- →__ __ __ __(瘦的)
三.将单词归类,写在横线上面.(12分)
strict Canada short driver Australia strong UK teacher farmer China quiet principal 人物特征描写:_______________________________________________
国家:_______________________________________________________
职业:_______________________________________________________
四.翻译短语. (8 分) 3.又漂亮又活泼一位和蔼的老师
五.选择填空. (16分)
( ) 1. Who’s ___________math teacher? A. you B. your C. yours
( ) 2. What is ___________like? A. him B. he C. his
( ) 3. Mr. Carter is_______ English teacher. A. a B. these C. an
( ) 4.__________strong? Yes, he is. A. is he B. Is his C. Is he
( ) 5 Who is that____ ? Oh, she is ____principal. A. lady; our B. man; our C. boy; our
( )6.如果你想说:“他的课很有趣”,应该说:( ) A.He is very funny. B.His class is so much fun.
C.He is very active.
( )7.如果你想问:他是你的新数学老师吗?”应该说:( ) A.Is she your math teacher?
B. He is your new math teacher. C.Is he your new math teacher?
( )8.对你听到的话表示惊奇,应该说:( ) A.Let me try. B.You are welcome. C.Really? Cool!
六.改写句子. (10分)
1、提问) _________________________________
2、提问3、He is very quiet.(该为否定句4、Is your music teacher active ?(根据你的实际情况回答)
_________________________________________________________
5、 at is your P.E teacher like?(根据你的实际情况回答)
_________________________________________________________
七.连词成句. (10分)
1. he, new, your, Is, teacher, Chinese ____________________________________?
2. is, very, and, active, She, short___________________________________.
3. a, Our, is, new, student, music, university, teacher
__________________________________________________________
4. is, lady, that, old, Who___________________________________?
5. your, art, funny, Is, teacher, very___________________________________?
八.写作。
学校刚来了一位新体育老师Mr Brown, 他来自美国。这位老师很和蔼,很强壮,也
很有趣,大家都喜欢上他的课。请试着用英语来形容一下这位老师。(10分)
We have a ___________ ___________ ____________. He’s
Mr.Brown.He’sfrom___________.He’s______________and___________
___. He is _________, too. His classes are___________ ___________ fun.
We all like him.
试卷二
一、辨别下列每组单词画线部分的读音是否相同,相同的打“√”,不同的打“×”。(10分) 二、一周七天,写出缺少的那几天。(10分)
___________→ Monday_______ → ________ → ________ →__________ → Saturday
三、情景交际。(10分)
1.如果你想问“今天是星期几?”应该说:( ) A. What do you do on Mondays?{五年级英语(上)国庆假作业}.
B. What day is it today? C. When is your birthday?
2. 如果你想问“你们星期一上什麽课?”应该说:( ) A. Monday is my favorite.
B. We have English, math, and P.E. C. What do you have on Monday?
3.如果你想说:“我喜欢星期六。”应该说:( ) A.What do you do on Saturdays?
B. like Sundays. I watch TV on Sundays. C. I like Saturdays.
4.别人问你:“What do you do on Saturdays?” 你应该回答:( ) A. I like Saturdays.
B.I play computer games and read books on Saturdays. C. It’s Saturday today.
5.“你呢?”除了说“What about you?”外,还可以说:( )
A. Oops! B. Oh, Really? C. And you?
五、选择填空。(12分)
( )1.Mother’s Day is _____ May. A. on B. at C. in
( ) 2.We have English______ Mondays and Wednesdays. A. in B. of C. on
( ) 3.I want_____ sneakers. A. a B. a pair C. a pair of
( )4. I need to do some _______. I need some ________.
A. shop crayons B. shopping, crayons C. shopping, crayons
( ) 5. -Who’s that young lady? -__________is our principal. A. He B. she C. She
( ) 6.I often do my homework_______ weekends. A. in B. on C. of
( ) 7.It’s 8:00. It’s time _______get up. A. to B. \ C. for
( ) 8.-I often play ping-pong.-Great! I can play ______you. A. at B. with C. and
( ) 9. We have___ English classes this afternoon A. two B. too C. to
( ) 10.He’s tall and strong, that’s ___ sure.A. of B. in C. for 六、将A、B左右两栏的句子连接。(5分)
A B
1. What do you have on Mondays? That’s right!
2. What day is it today? Great! I can play with you.
3. What do you do on Sundays? I have English and art on Mondays.
4. I often play football. It’s Monday.
5. I do my homework on Saturdays. I do my homework at home on Sundays.
七、按要求改写句子。(10分)
1. It’s Saturday today.(提问提问提问) __________________________
4. I like Saturdays.(改为否定句 ) ________________________________________________
5. What day is tomorrow? (根据实际情况回答)_____________________________________
八、英汉互译。(10分)
3. It’s 9:00. It’s time to read books. 1. I do housework on Sundays. ___________________________________________________ 4.你们星期四上什么课九、阅读理解。(15分)
1.阅读课程表,填写单词,完成短文。(8分)
5.你星期三晚上做什么忙碌的历
史classes and two Social study. English is my favorite subject(课程)and I study hard .
十、制作一张你自己的英文课程表(写作)。(10分)
(请各位同学认真完成假期作业,并告知家长签字。同时祝各位学
生、家长朋友假期愉快! )
五年级英语假期作业
2014年五年级英语5B(Unit1----Unit4)假期练习
班级______________ 姓名______________ 学号______________
一、判断下列单词划线部分的读音是否相同,用√或x表示。 ) ) 3. cold wrong ( )
4. collect computer ( ) 5. to hot ( ) 6. Tuesday Thursday ( )
7.stamp animal ( ) 8.monkey social ( ) 9.go docyor ( )
二、英汉互译 17分
1 一周里______________ 2 在星期三下午______ _ 3 集邮______________ 4 一节有趣的语文 5 做模型船______________ 6 打电话给他________________ 11种漂亮的花______________ 12浇树______________ 13 有相同的爱好______________ 14每周 ______________ 15 服药____________________ 16 觉得渴了______________ 18赶快好起来_______________ 19躺在床上______________ 20 see you soon ________________ 21 a bad cough ______________
22 have a lot of rest _____________ 23 get a headache __________________ 24 住在苏州___________________ 25 写一封电子邮件__________________ 26 大声地说___________________ 27 上网冲浪______________ 28 住在小镇上_________________ 29 写信给我______________ 30 swim well __________________ 31 usually(形容词)_______ 32 be busy __________________ 33 carefully(形容词)_________ 34 well(同义词)_____________ 34 well(比较级)_____________ 35 beautiful(副词)___________ 36 high(副词)___________
三、选择题
( ) 1. What ______ is it today? It’s Monday.
A. date B. day C. week
( ) 2. what lessons do you have ______ the afternoon?
A. in B. on C. at
( ) 3. How ______ lessons do you have on Monday?
A. much B. many C. any
( ) 4. what ______ do you like?
A. lesson B. subject C. lesson
( ) 5. I like Chinese. _______ you?
A. Who are B. How about C. Where are
( ) 6. What’s 321 ______ 123? It’s 198.
A. minus B. plus C. and
( ) 7. Mr Li and his students are ______ a lessons.
A. have B. having C. going
( ) 8. My father usually ______ to the library on Sundays.
A. go B. goes C. going
( ) 9. I’m very ______ now. I can’t go out with you.{五年级英语(上)国庆假作业}.
A. free B. busy C. high
( ) 10. He’s not ______. He can’t do exercise well.
A. fast B. strong C. high
( ) 11. Does you friend ______?
A. loudly speak B. speak loud C. speak loudly
( ) 12. We have _______ every day.
A. five lesson B. five lessons C. five subjects
( ) 13. There is _____ “x” in the word “box”.
A. an B. a C. the
( ) 14. Look, this is a nice picture ______ the park.
A. at B. of C, back
( ) 15. It’s time _____ home.
A. to go to B. go C. to go
( ) 16. Excuse me, ______ can I ______ to the cinema?
A. What, get B. Which, go at C. How, get
四、连词成句
1. lessons, do, morning, the, you, what, have, in (?)
_____________________________________________________
3. like, what, do, you, subject (?)
_____________________________________________________
5. boys, to, welcome, girls, back, school, and (.)
_____________________________________________________
6. am, an, e-mail, I, my, American, to, friend, writing (.)
_____________________________________________________
7. in, live, they, small, a, town, London, near (.)
_____________________________________________________
8 basketball, with, to, he, play, me, wants (.)
_____________________________________________________
9 you, absent, why, are, today (?)
_________________________________________
10 taking, you, are, medicine, any (?)
_________________________________________
11 can, I, fruit, for, some, get, you (.)
_________________________________________
12. sorry, am, I, hear, to, that (.)
_________________________________________
五、根据要求写句子。
1 It’s Friday.(对划线部分提问) _______________ 2 I like Chinese.(对划线部分提问) _________ ____ 3 We have five lessons in a week. (对划线部分提问)
______________________________________________
4 We have Chinese, English, Maths and Science every morning. (对划线部分提问) _
5 He often plays football after school. (改为否定句)
______________________________________________
6 I have a Science lesson on Monday. (改为一般疑问句,作肯定回答)
___________________________________ _
8 What’s wrong with you? (写一个意思相近的句子)
___________________________________________________
9 I’ve got a bad cough. (把主语I改成she)
___________________________________________________
10 I can get some fruit for you. (改为一般疑问句,作肯定回答)
___________________________________________________
六、根据所给汉语句子,用适当的单词完成句子,每空一词。
1 你喜欢什么学科?我喜欢美术和体育。
2 493-293=?你能立即答出来吗?噢,让我想想。{五年级英语(上)国庆假作业}.
What’s 493 ______ 293? Can you tell me _____ ______?___.
3 我喜欢语文,它很有趣。
I _____ Chinese. It’s _________.
4 海伦得了重感冒,躺在床上。 Helen has _____ ______ bad ______. She is ______ in ______.
5 听说你这样生病我很抱歉。我真希望你能块点好起来。
I’m _______ to _______ that. I ______ you get ______ _______.
6. 放学了,我们给杨玲卖点好吃的。
Classes are ______. We can ______ _______ _______ for Yang Ling. 7 这个小男孩有一些爱好。他喜欢游泳和玩拼图。
The ______boy ______ . ______. He ______ ______ and ______ ______.
七、用括号中的词的适当形式填空。
1. Tome usually _______ (play) football after school.
2. How old _______ (be) he? He ______ (be) eleven.
3. sit ________ (quiet), Nancy.
4. He _______ (live) in a small town near Nanjing.{五年级英语(上)国庆假作业}.
5. Pingping ________ (write) an e-mail to his English friend.
2. Look, this pretty dress is ________ ( my sister doll).
3. Let’s ________ ( watch) TV now.
4. Shall we ________ (go) to see the doctor?
5. What ________ you ________? I can ________ (draw) a panda.
6. We ________ ( have) two ________ (library) in our school.
7. The cat ________ (like) ________ (run) after the mouse.
八、阅读理解。
Mary is a little girl. She is only five years old. She is not at school. She doesn’t know how to read or write. But her sister Joan is a schoolgirl. She is ten. She knows how to read and write.
One day, Joan sees her little sister in the room. She is at the table. There is a pencil in her hand. She is writing. “What are you writing, Mary?” She asks. “I’m writing to my friend, Rose.” “But how can you? You don’t know how to write.” Says her sister. “Well,” says Mary, “It doesn’t matter. Rose doesn’t know how to read, either.”
( ) 1. Is Mary a schoolgirl?
A. Yes, she is. B. No, she isn’t. C. We don’t know.
( ) 2. Who can read and write?
A. Mary. B. Rose. C. Joan.
( ) 3. what’s in Mary’s hand?
A. There’s a pen. B. There’s a pencil. C. There’s a crayon.
( ) 4. What’s Mary doing?
A. She’s drawing. B. She’s writing to her friend. C. She’s singing.
( ) 5. Can Rose read and write?
A. No, she can’t. B. Yes, she can. C. We don’t know.
根据短文内容判断对错。
John and Jim are good friends. They’re eleven. They’re in Class Three, Grade Five in No. 1 Primary School. On Sundays, they like going to the park and flying kites. But they don’t like the same sport. John likes playing football and Jim likes playing table tennis. John likes singing and dancing. Jim likes drawing and reading.
( ) 1. John and Jim are about nine.
( ) 2. They’re in No.1 Middle School.
( ) 3. John and Jim like flying kites in the park.
( ) 4. Jim likes drawing and reading.
( ) 5. They’re good friends.
五年级国庆假期作业
2016年五年级国庆假期作业
列竖式计算(家长检查批阅,有错请补反面) 每题2分 学生: 家长: 总分:
12.5×42= 1.8×23= 0.37×0.4=
1.06×25=
27×0.43=
0.37×8.4=
21×2.84=
7×8.06= 1.7×0.45= 0.86×1.2= 4.32×8= 0.6×0.39= 1.2×1.4= 2.34×0.15= 6.8×25= 1{五年级英语(上)国庆假作业}.
2.1×2.15= 5.2×2.9= 26.4×0.063=
25.2÷6=
1.8÷1.2=
6.3÷0.14=
34.5 ÷1.5= 7.83÷9= 72÷15=
5.6÷0.04= 4.08÷0.8= ÷7= 2
1.8÷12= 0.54÷0.6= 24÷1.5= 14.21
1.26÷18= 43.5÷29= 18.9÷0.27= 1.35÷15=
328÷1.6= 1.35÷27= 7.65÷0.85=
2.1÷0.4= 2.56÷32= 50.18÷38.6=
14.7÷0.07= 5.4÷15= 124.8÷0.24=
0.544÷0.025= 203.5÷11= 24÷15=
3
12.6÷0.28= 4.68÷75= 23.4÷585= 3.64÷52=
五(上)周末作业4(国庆大假作业)
厦门英才学校小学部五年级国庆大假作业
班级: 号数: 姓名: 书写分: 成绩:
一、小博士。
1、0.57×2.05的积是( )位小数,保留两位小数是( )。
2、( )的小数点向左移动两位后是5.8,这个数缩小到了原数的( ),与原数相差( )。
3、根据1.2×35=42直接在括号里填数。
12×350=( ) 0.12×3.5=( ) 1.2×0.35=( ) 12×35=( ) 12×3.5=( ) 1.2×3.5=( )
4、两个非零因数,一个因数不变,另一个因数扩大80倍,积( )。
5、在○里填上“>”、“<”或“=”
25.4×5○25.4×4 4.05×10○45 2.8×7.2○7.2×2.8
3.65×0.99○3.65 0.61×2.4○2.4 9.9×0.98○0.98
6、不计算,说出下面各算式的积是几位小数。
2.45×5 125 ( ) 6.32×0.51( ) 0.37×0.15( )
7、4.9095保留一位小数是( ),保留两位小数是( ),保留三位小数是( )。 8、8.8×1.01=8.8+8.8×( )是简便算法。3.1×1.25×8=3.1×(1.25×8)运用了乘法( )律。3.6×4.5+3.6×5.5=。3.6×(4.5+5.5)运用了乘法( )律。
9、一个二位小数四舍五入后是2.4,这个两位小数最大是( ),最小是( )。
(1)明明乘出租车行了6.5千米,应付( )元。
(2)红红乘出租车从会展中心到中山路付了26元,从会展中心到中山路大约( )千米。
二、火眼金睛,辨别真伪。(对的打“√”,错的打“X”)
1、一个数乘小数,积一定比这个数小。 ( )
2、两个数相乘,一个因数扩大到原数的10倍,另一个因数乘0.1,积不变。( )
3、近似数4.0和4的大小相等,精确度不同。 ( )
4、大于1.7而小于1.8的小数只有一个。 ( )
5、计算4.25×0.32的简便算法是4.25×0.8×4=13.6。 ( )
三、精挑细选
1、1.6×3.9去掉两个因数的小数点,积( )。
A、扩大10倍 B、不变 C、扩大100倍 D、缩小100倍
2、下列算式中,积最小的算式是( )。
A、3.64×2.36 B、0.364×236 C、36.4×23.6
3、两数相乘,积大于第一个因数,则另一个因数( )。
A、大于1 B、小于1 C、等于1
4、两个因数的积是87,其中一个因数扩大10倍,另一个因数的小数点向左移动一位,积是( )。
A、87 B、0.87 C、870 D、8.7
5、×的积是( )位小数。
150 90
A、24 B、25 C、26 D、27
二、神算手、细又巧。
1、列竖式计算。
1.36×1.2 2.7×0.34 0.74×5.8
(保留两位小数) (保留两位小数) (保留一位小数)
2、正确合理地计算,能简算的要简算。(不能简算可不要„„)
2.5×6.3+0.37×25 25×5.5×0.4×2 12.5×3.2×2.5
0.65×201 6.5×9.9 3.6×17.8+3.6×83.2-3.6
5.5×4.4-44×0.33-0.44×22 7.5+2.5×4 2.5×4.2-0.2
五、试一试。
(
)年作为访问学者去英国剑桥大学工作,后又去过美国,1950年回国。他发表研究论文( )多篇。1985年( )月在日本讲学时逝世,享年( )岁。
六、走进生活,解决问题。
1、 购买水果。
水蜜桃 葡萄 樱桃
6.85