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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|}=
精选练习题目
Lost Please help us find our dog,Max.It\’s 3 years old.It is white and cute.Max was lost in Central Park on June 10th,Monday.Call Gary at 555 6238. Found Is this your black watch in the school garden? I found it on Frida
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Missing "LOST DOG" Reward:¥ 500 Name:Coco Age:6 years old Description(描述): Coco is a big brown dog.It is very friendly. If you find it,please call Mary at 850697. You can also e-mail her at Mary@mail.com I really want to
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A.Which club do you join? B.What do you do there? C.Why do you join the club? D.I can play the guitar very well now. E.How many students are there in the music club? F.Miss Chen is our teacher in the club. G.How often do
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Suzhou is _____ old city.( )
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在空白处填入1个适当的单词或括号内单词的正确形式。 The summer vacation is over. It is 37. (true) that time flies. In the vacation, the weather was very hot, but I enjoyed 38. (me). I did my homework in the morning. I got up at 6:30 a. m. and too
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琳达的宠物狗丢了,她正在寻找它. Linda is ____________her pet dog.It\’s lost.
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--Nancy, are you reading or watching TV now? -- ______. The book is so interesting.( )
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—Did Millie go to school too early or too late? — .She slept late yesterday.( )
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— Do you like swimming or climbing? — __________.I like all kinds of water sports.( )
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Which of the following sentences is an Alternative Question(选择疑问句)?( )
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-Can your brother sing or dance? -____.( )
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--Can Joan play the guitar or the piano? --________.And she plays it well .( )
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He is one of the most outstanding ______(design) in the world today.
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That\’s ______(real) an important lesson.
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校园生活五彩斑斓,充满了欢乐与激情.在这个大家庭里,我们共同学习、成长.请根据下面的提示,用英语写一篇短文,与大家分享你的校园生活. 注意: (1)表达中必须包含所给要点,并适当拓展,使文章连贯. (2)词数80左右. (3)文中不得出现真实姓名和校名等信息. ______
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I feel n ______before exams(考试).
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在中国,越来越多的人喜欢汉服. ______ like hanfu in China
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王老师教我们英语. Miss Wang ______ English.
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琳达和我是好朋友.事实上,我们上周还一起吃过饭. Linda and I are good friends. ____________ ,we had dinner together last week.
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我的书包在床上. My schoolbag ______ ______the bed.
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