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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
这个决赛将于本周五举行. ______
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We will do ______ for you because you need do it by yourself.( )
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昨天聚会上我感觉自己像个孩子一样. I ____________ a child at the party yesterday.
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Are you a shy kid?If you think you are too shy,just try the following things. ★Be open to others.There is no need to hide(隐藏) the fact that you are shy.When they know you are a shy kid,they can know you better. ★Try to s
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I don\’t know how I can practise______ (speak) English.
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Shanghai is bigger than in Jiangsu and bigger than in China.( )
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How fine the weather is!We are ______(计划) to have a picnic.
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Tina is a music teacher at a primary school in Wuhan.She believed her student Joe had a special (1)______ after hearing him play the drums on a bucket (桶). Joe used to have his own drum set at home,but he (2)______ it in
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Oil paper umbrellas have a history of over 1,000 years in China.Once they were everywhere.However,as umbrellas with metal ribs(金属伞骨)(1)______(become)more popular in the last century,people used the hand-made umbrellas le
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Ailao Mountain is far_____my home,but my uncle\’s home is close ______ it.( )
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—Tom really has a talent English. —Yes,he is also good other subjects.( )
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Our town is a great place(1)______((enjoy) my free time. There (2)______(be) three libraries.They are all good,but the one near my house is the(3)______(good).I often go to read books there with my classmates on weekends
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Great changes in the city, and a lot of factories .( )
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"Where\’s Papa going with the ax?"said Fern to her mother as they were setting the table for breakfast. "Out to the hog house," replied Mrs.Arable."Some pigs were born last night." "I don\’t see why he needs an ax,"conti
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Great!You have ______ (deal) with so much work in such a short time.
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The moon was behind a cloud.And there weren\’t many stars in the sky.It was a dark night.I saw a glow(光)in my neighbor\’s kitchen.I thought he was having a night meal.So I went back to my bed. Soon there was a smell of b
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Mike offered to help the d ______woman who lost her arms last year.
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I put the______ (湿的) clothes on the desk just now.
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also;so;wait;attention;well;them;of;make;interest;chance;connect;second Are you learning a foreign language?Everyone is born with the ability to learn.Do you know how to learn English (1)______? First of all,successful l
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你一定听说过贝多芬(Beethoven) 这位伟大的音乐家吧.请根据以下信息写一篇80词左右的短文介绍他. 提示: (1)贝多芬是世界上最伟大的音乐家之一; (2)1770 年12 月出生于波恩(Bonn); (3)五岁开始学习弹钢琴,七岁开始当众(in public)演奏; (4)年轻时开始失去听觉(deaf 聋的); (5)1827 年去世.
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