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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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八年级·英语·填空题Unit 3 Families Celebrate Together
My mother likes collecting things. So she has many ________ (collect) ．
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七年级·英语·阅读理解Lesson 1 Photos of Us
Sonia is a student. She likes collecting things. She has a sports collection( 收藏品 ). She has ten tennis rackets, seven basketballs, four volleyballs and two soccer balls. She likes playing tennis. She plays tennis every
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七年级·英语·填空题Lesson 1 Photos of Us
There are seven days in one week. From Monday to Friday, most people are busy __________ or studying. But __________ the evenings and at weekends they are free and they can enjoy themselves. Some people __________ TV or
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七年级·英语·选择题Lesson 1 Photos of Us
How old __________ your brother? And how old __________ you?
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七年级·英语·单词拼写Lesson 1 Photos of Us
根据中文提示拼写单词 【1】Tom has the ________________(能力) to do the work. 【2】Liu Qian becomes ________________(著名的) for his magic shows. 【3】We hope you can ________________(参加) us soon. 【4】They are watching a ________________(网球) m
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七年级·英语·单词拼写Lesson 1 Photos of Us
单词拼写 【1】Let's p________________ the pictures. 【2】They're playing soccer. Let's j________________ them. 【3】I don't like playing basketball. It's b________________. 【4】All the guests arrived at the party but the host didn'
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九年级·英语·选择题Unit 1 She trained hard,so she became a great player later.
I went to the cinema early，______ I got a good seat．
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九年级·英语·选择题Unit 1 She trained hard,so she became a great player later.
Seven years later,she completed her ______ at the university．
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九年级·英语·选择题Unit 1 She trained hard,so she became a great player later.
When the teacher came in the classroom，all the students stop ______．
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九年级·英语·选择题Unit 1 She trained hard,so she became a great player later.
—______ can you see in the picture? —______．
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九年级·英语·选择题Unit 1 She trained hard,so she became a great player later.
—I want to know ______ Tom gave up the match． —Because he hurt his foot．
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九年级·英语·选择题Unit 1 She trained hard,so she became a great player later.
She as well as you ______ from the same country—China．
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九年级·英语·选择题Unit 1 She trained hard,so she became a great player later.
I decided ______ at the end of this year．
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九年级·英语·句型转换Unit 1 She trained hard,so she became a great player later.
【1】She's my hero because she's one of the best table tennis players in the world．（用so改写） _______________________________________________________________________ 【2】She started playing the piano when she was five．（改为简单句）
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八年级·英语·填空题Unit 4 My Neighbourhood
I would never realize I was quite helpful in my family until 【 1 】 (I) mum became ill. Last month, she went to hospital. The doctor said she needed to stay in bed and have 【 2 】 good rest. My dad works in a restaurant an
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八年级·英语·单词拼写Unit 4 My Neighbourhood
(2020 原创 )I bought a pair of shoes last week. It c ________ me 300 yuan .
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八年级·英语·单词拼写Unit 4 My Neighbourhood
(2020 原创 )Finally we got to the t ________ of the mountain and saw the beautiful sunrise.
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八年级·英语·填空题Unit 4 My Neighbourhood
(2020 原创 )His voice ________ (sound) strange on the phone. What's the matter with him?
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八年级·英语·填空题Unit 4 My Neighbourhood
(2020 原创 )This movie impressed me ________ (deep). I learned too much from it.
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八年级·英语·填空题Unit 4 My Neighbourhood
(2020 原创 )That day, we got together for the ________ (celebrate) of her birthday.
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