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高频错题
#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
There was a man playing the piano in a bar.He was a good piano player.People came out just to hear him play.But one night,a customer told him he didn\’t want to hear him just play anymore. He wanted him to sing a song. T
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Sarah often reads books in the morning. (改为疑问句) ______
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Do they play the piano well?(作否定回答) No, ______ ______.
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A:How do you s ______ the word "apple"? B:A-P-P-L-E,apple.
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-- _________ -- He is polite,just like his father.( )
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A:Would you like to come to my home and celebrate Mid-Autumn Day tomorrow? B:Mid-Autumn Day?(1)______ A:You thought right,but this year both holidays happen to fall into the same week. B:(2)______ A:Because the National
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—Your head teacher has set up a WeChat group.Could you tell me ? —It is more convenient to communicate with our parents.( )
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Can you tell me some _______about Peter?( )
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—Do you know ________ a parents\’ meeting this weekend? —Sorry.I\’m not sure.( )
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— ? —He has a round face and two big eyes.( )
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-What\’s the of this school trip? -About 50 yuan per student.( )
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Everyone a dream.( )
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through much make play show it culture what spend education There are many TV programs on Chinese food,but few of them are like A Bite of China Ⅲ(《舌尖上的中国》第三季).It tells us something interesting about what the Chinese eat
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Eric ______quite a few books to the kids in the countryside last year. (捐赠)
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Could you tell me which place would be a good______for me______?( )
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-Do you know ______? -You can speak and read more.( )
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Have you watched the film "Wolf Warriors 2"(战狼2)?It\’s ______ action film.( )
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Generally speaking, tea plants ________ on the sides of mountains.
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Our family went shopping today and at last I ______ a big teddy bear. (选择)
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--Mike,do you know the answer______this question? --It\’s a little difficult for me.( )
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