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#1 · 常错题

#2 · 常错题

将循环小数化为分数:整数、有限小数、循环小数都可以化成分数,整数和有限小数化成分数容易,循环小数如何化成分数呢?请看下面的例子. 将循环小数$0.288\ldots $化成分数:将$0.288\ldots $分别乘$10$和$100$,得$2.88\ldots $和$28.88\ldots $,两个得数相减得$26(两个得数小数部分相同)$,而相减所得的$26$应该是$0.288\ldots $的$\left(100-10\right)

#3 · 常错题

今年市委市政府积极推进创建“全国文明城市”工作,市创城办公室为了调查初中学生对“社会主义核心价值观”内容的了解程度\((\)程度分为:“\(A-\)十分熟悉”,“\(B-\)了解较多”,“\(C-\)了解较少”,“\(D-\)不知道”\()\),对我市一所中学的学生进行了随机抽样调查,根据调查结果绘制了两幅不完整的统计图如图,根据信息解答下列问题: \((1)\)本次抽样调查了多少名学生; \((2)\)补全条形统计图和扇形统计图; \

#4 · 常错题

#5 · 常错题

一批水果的标准质量是$30$千克,超出标准质量记为正,低于标准质量记为负,现记录如下:$+8$,$-9$,$-5$,$+7$,$-8$,$-6$,$+7$,$+10$. $(1)$这批水果总共有多少千克? $(2)$第一天按每千克价格$5$元卖出了这批水果的一半,第二天为了吸引顾客把第一天卖水果的价格降价$20\%$后作为新的价格,卖完了剩下的水果,请计算一下这批水果一共卖了多少钱?

#6 · 常错题

分类讨论思想是数学的重要思想,在学习有理数的过程中,也深有感受$!$ $(1)$当$ab \lt 0$时,若$b \gt 0$,$|a| \lt |b|$,则$a+b \_\_\_\_\_\_0$; $(2)$当$abc \lt 0$时,若$ab \gt 0$,则$c \_\_\_\_\_\_0$; $(3)$已知$a$,$b$,$c$是非零有理数,则$\frac{a}{|a|}+\frac{b}{|b|}+\frac{c}{|c|}=

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七年级·英语·选择题Unit 6 Food and lifestyle

My family always _______ a party _______ the evening of 31st October.

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七年级·英语·选择题Unit 6 Food and lifestyle

--- Let’s go to see a film this evening. --- ________. I’d be glad to.

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九年级·英语·书面表达Unit 1 Asia

【题目】 书面表达 假设你是李明,你的外国网友 Eric 在网上看到几幅中国剪纸( Chinese paper-cutting),Eric 对此很感兴趣,给你发来邮件询问有关中国剪纸的信息,请你根据下表提示给他回复邮件。 Chinese Paper-cutting long history over 2,000 years very popular in different parts of China,young or old,be

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九年级·英语·阅读理解Unit 3 Language in use.

Chinatown is the name given to an area in the middle of London. It is a large Chinese community with a lot of Chinese restaurants, supermarkets and shops. In the 1950s, it was a poor area and everything was very cheap. A

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八年级·英语·填空题Unit 3 Could you please clean your room?

At the age of four,our kids began to help us with the housework.They helped (1) their pets and clean the house.Now Tate can make her bed, (2) her clothes and set (布置)the table.Last week,she even helped me (3) .We were ha

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八年级·英语·选择题Unit 3 Could you please clean your room?

-Why did Mark get to the cinema so early? -________ get a good seat.( )

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八年级·英语·选择题Unit 3 Could you please clean your room?

-How about this skirt,Cathy? -It's too expensive and ________ the color doesn't suit (适合)you.( )

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八年级·英语·选择题Unit 3 Could you please clean your room?

-Would you mind ________ the rubbish on the floor,my boy? -I'm sorry.I won't do it again.( )

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八年级·英语·选择题Unit 3 Could you please clean your room?

It's a ________ to throw good food away and we should try our best to save (节约)food.( )

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八年级·英语·选择题Unit 3 Could you please clean your room?

Mr.Li likes ________ the floor but hates to ________ the dishes.( )

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八年级·英语·选择题Unit 3 Could you please clean your room?

-Jenny is ________ the difficult math problem. -I'm sure she'll ________.( )

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八年级·英语·选择题Unit 3 Could you please clean your room?

-Could you please ________ the rubbish,Mandy? -OK.I'll do it right away.( )

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八年级·英语·单词拼写-单句Unit 2 I'll help to clean up the city parks.

They____________ (分发) food to some homeless people yesterday.

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八年级·英语·单词拼写-单句Unit 2 I'll help to clean up the city parks.

I'll visit the sick kids in the hospital to__________________ (使他们振奋起来).

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八年级·英语·单词拼写-单句Unit 2 I'll help to clean up the city parks.

We'll help to____________ (打扫) the streets in our town.

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八年级·英语·填空题Unit 2 I'll help to clean up the city parks.

Do they have any good ideas______(help) the homeless people?

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八年级·英语·填空题Unit 2 I'll help to clean up the city parks.

Mr. Green told the boy not______(come) to school late again.

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八年级·英语·填空题Unit 2 I'll help to clean up the city parks.

I'd like______(drink) a cup of coffee.

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八年级·英语·填空题Unit 2 I'll help to clean up the city parks.

The workers wear dark glasses______ (keep) their eyes safe.

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八年级·英语·填空题Unit 2 I'll help to clean up the city parks.

We often hear the girl______(sing) in the next room.

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