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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
Many people are trying to save the earth with special days like "Meatout Day","Earth Day"and"Buy Nothing Day". "Meatout Day"is on March 20th.Many people around the world don\’t eat any meat for one day.In this way,they\’
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Jack keeps exercise healthy every day .( )
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There were many ______ (受伤的) soldiers in the war.
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I a message to my friend last week,but she hasn\’t replied yet.( )
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Teachers at No.3 Middle School want to know about how the students of Grade Eight spend their weekends.100 eighth-grade students gave their answers.They also asked these students\’ parents what they wanted their children
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Can you show________ ,please?( )
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When I am reading a newspaper at home,my friends call me," Will you (1)______ here and give us some help?"I throw the (2)______ away and run to them. My friends are playing a basketball game in the (3)______.And the ball
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李华昨天从墙上跌落下来了. Li Hua ______ from the wall yesterday.
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Thomas ______(选择) to go abroad by plane finally.
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Liangliang is boy.He goes to school on a ropeway to cross the river to school.( )
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Julia is a middle school student.( )
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Scientists think that there is life on the Earth for millions of years.However,we can\’t find life on other planets. The Earth is a planet and it goes around the Sun.Seven other planets also go around the Sun.None of the
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-Uncle Wang,what do you do to keep healthy? -I do______sports and eat ______ fast food.( )
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______ Frank is only six,he can remember seeing it on TV.( )
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— Are there any bookcases? (作否定回答) — No, ____________ .
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A: ______ is to become an architect in the future?(补全对话) B:Wang Yiming\’s dream is become an architect in the future.
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It is smart of you to check the time and things before you______the train station.( )
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Helen:Hello! Beth:(1)______! Helen:I\’m Helen.What\’s (2)______ name? Beth:(3)______ name(4)______ Beth. Helen:Beth, (5)______ this (6)______ English? Beth:It\’s a (7)______ . Helen:(8)______ it,please. Beth:M-A-P,map. H
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There are many ______[tʃeəz] in the classroom.
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从上面一篇文章里,我们知道了Emei Kung Fu Girls,其中作为代表受访的马赵凌云是她们的大师姐,她是一个怎样的人呢?请根据以下图片和表格中要点的至少三点写一篇英文短文给大家介绍一下这位峨眉派传人吧!要点提示: 姓名:马赵凌云 年龄:26 外貌:big eyes,tall …(可根据图片添加细节) 性格:kind,outgoing, ... 爱好:峨眉功夫,acting(演艺)…(可根据简答题文章添加细节) 最爱的食物:Map
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