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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|}=
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I, right, he, don't, think, is _____________________________________ .
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family, tallest, he, is, his, the, in _____________________________________ .
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sister, thinner, are, you, than, your _____________________________________ ?
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as fluently as, she, read, can, me _____________________________________ .
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When I was a young boy, I was so shy that my classmates often 【 1 】 (laugh) at me. I was sad but could do nothing. Later, something changed my life. It was 【 2 】 English speech contest. My mother asked me to take part in
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An“unmanned” , fully automated( 自动的 )bank opened on Monday in Shanghai. It has received positive feedback from customers, especially younger ones. The equipment, set up by China Construction Bank's Shanghai Branch on Jiu
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At the beginning of this term, my PE teacher suggested to me that I should take part in the marathon( 马拉松赛跑 ). I was very surprised because I was never a good runner. In order to _____ me, he said that if I took part in
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(2020 原创 ) She is s ______ kind and friendly that all of us like her.
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(2020 原创 ) Tom, can you run slowly? I can't catch up ______ you.
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(2020 原创 ) Team s ______ is very important in a group. Everybody should realize it.
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(2020 原创 ) There are many kinds of fruits on the table, ______ (include) apples, bananas and pears.
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(2020 原创 ) This pair of shoes is the ______ (cheap) one I have ever known.
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One of the hottest places on the earth is Death Valley. It's a desert valley in North America. The animals in Death Valley don't use technology to keep cool. They have special abilities that help them live there. The kan
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Do you know what makes lightning( 闪电 )? Why does lightning strike( 击打 )? Lightning strikes happen when ice and water in clouds rub( 摩擦 ) together, and cause atmospheric( 大气层的 ) changes. When this happens, it creates a st
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wallet, yesterday, my, lost, was ________________________ .
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arrived, my, has, home, brother ________________________ .
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kind, this, car, of, was, China, made, in ________________________ .
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for, I, been, have, years, in, England ________________________ .
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水上公园 I love going to water parks for fun. However, many people think that water 【 1 】 (park) waste water. There is not too much drinking water in our p 【 2 】 , so people think water shouldn't be used just to have fun. Wa
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(2020 原创 ) There are five apples on the table ________ total. You can pick any two of them.
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