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#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·完成句子Unit 8 Growing healthy,growing

Rewrite the following sentences as required. ( 按要求改写句子,每空格限填一词 ) 【 1 】 We are going to visit the Great Wall this Sunday. ( 就划线部分提问 ) _____ are you going to ____ this Sunday? 【 2 】 I met my good friend at the airport yest

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七年级·英语·填空题Unit 8 Growing healthy,growing

Fill in the blanks with the given verbs in their proper forms(用括号中所给动词的适当形式填空) 【1】He_______ (be) back in two weeks. 【2】Martin_______ (read) a book in the library at the moment. 【3】What can we do if there_______ (be) no r

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七年级·英语·填空题Unit 8 Growing healthy,growing

Complete the sentences with the given words in their proper forms. ( 用括号中所给单词的适当形式,完成下列句子) 【1】Shanghai has _________________ a lot in the past 30 years. (change) 【2】You look much ________________ than before. (health) 【3

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七年级·英语·填空题Unit 8 Growing healthy,growing

Choose the right words to complete the sentences. (从括号里选择正确的单词,完成句子) 【1】You should have your meals_______ (regular, regularly). 【2】He used to_______ (smoke, smoking) in the bedroom. 【3】We should take care of ourselves an

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九年级上·英语·选择题Unit 1 Wise men in history

—Don't be late for school next time, ? —No, I won't.

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九年级上·英语·选择题Unit 1 Wise men in history

一 I doubt that he will change his mind.一 If so, you'd better ask him about it directly.

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九年级上·英语·选择题Unit 1 Wise men in history

He has never been to Beijing, ?

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九年级上·英语·选择题Unit 1 Wise men in history

How kind you are! You always do what you can others.

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九年级上·英语·选择题Unit 1 Wise men in history

一 Did you solve the Maths problem by yourself?.— No. Bob helped me with it.

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九年级上·英语·选择题Unit 1 Wise men in history

I don't think the newly directed film by Zhao Wei is as interesting as people say, ?

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九年级上·英语·选择题Unit 1 Wise men in history

We have to finish the work now, ?

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九年级上·英语·选择题Unit 1 Wise men in history

Last week, many trees ________ along the streets to make our city more beautiful.

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八年级·英语·选择题Unit 6 Nobody wins (Ⅰ)

— You don’t look well. You should go to see the doctor. — ________

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八年级·英语·选择题Unit 6 Nobody wins (Ⅰ)

I like to read all kinds of novels ________ detective ones.

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八年级·英语·选择题Unit 6 Nobody wins (Ⅰ)

He can hardly speak any German, ________?

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八年级·英语·选择题Unit 6 Nobody wins (Ⅰ)

We have ________ food. So we will have to find something else to eat.

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八年级·英语·选择题Unit 6 Nobody wins (Ⅰ)

The winter holiday is coming. I ________ my grandparents in Beijing.

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八年级·英语·选择题Unit 6 Nobody wins (Ⅰ)

He ________ to meet his friends at the airport tomorrow.

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八年级·英语·选择题Unit 6 Nobody wins (Ⅰ)

The teacher ________ May and said, “Why are you late today?”

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八年级·英语·选择题Unit 6 Nobody wins (Ⅰ)

Our class teacher is the last one ________ school every day.

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