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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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Maria,Grade Seven ______
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It\’s hard to make good use of time at junior high.A to-do list can help you plan your day and remember important things! Step 1:Make a list Write down all the things you want to do or need to finish. For study Doing hom
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The basketball the bed isn\’t mine.( )
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—I can\’t find the mistakes in my report.Can you ______ for me? — Sure.Let me take a look.( )
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-What do you have _____your neighbourhood? -Supermarkets,restaurants,a school and a hospital.( )
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Do you have in your schoolbag?( )
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Nils was a very naughty little boy.He went to school in winter,and looked after the farm animals when it was summer.He was very naughty.Sometimes he chased the swans and when he caught them,he pulled their feathers off.T
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—________fine weather today! —Yes,we can enjoy the sunshine.( )
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Catherine likes to share what she has with others.How she is!( )
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-I didn\’t have the _______ to go out alone at night when I was a little child. -But now you are brave enough.( )
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The earlier kids learn to be independent,the ________ it is for their future.( )
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Ann can sing well.It seems that she was born ________ a great talent for singing.( )
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根据短文内容,从选项中选出能填入文中空白处的最佳选项,选项中有一项为多余选项. Driverless cars have long appeared in science fiction movies and books,but with the development of technology,things have changed a lot.(1)______ The development of the driverless
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Almost everyone has experienced the feeling of discomfort when their actions do not agree with their inner values.A man,for example,values work-life balance yet works 80 hours every week,caring little about his own healt
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Just now,Mark a ______ to Tim for fighting with him this morning.
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One of the students ______ cartoons because ______ interesting.( )
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有一句非常有名的英语谚语:"A friend in need is a friend indeed(患难见真情)."请你以"My friend and I"为题,用英语写一篇短文,介绍一下你和你的朋友. 内容包括: ●the similarities(相同点) or differences between you and your friend ●a story between you and your friend ●you r id
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剧院:戏剧n. ______
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John长大后想当一名社会工作者. ______
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His grandparents ______/reɪzd/him after his parents died.
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