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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|}=
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---How many students are there in each group? ---Usually each group _______ six students in our class.( )
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—How many students are there in your class? — Let me see.It ____________21 boys and 20 girls.( )
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Neither the detective nor the police___________out any proof yet.( )
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Don't eat the cake.It in the fridge for more than a week.( )
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---Jim, could you please answer the question? ---Sorry, I______. Could you say it again?( )
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I still remember my happy childhood when my mother __________ me to Disneyland at weekends.( )
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I a camera two weeks ago but I haven't had a chance to use it.( )
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—Could you please help me take out the rubbish? —Sure.I will do it I finish my book report.( )
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I want to see pandas I go to Chengdu.( )
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The Sunshine Park has something for all of you in the coming days.You can have a good time going boating here.There is also a water park,a monkey island and of course delicious food such as chocolate,ice-cream and hambur
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We usually write " ______" at the end of the letter.(you)
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Reading poems is good for us.It can make us think about some things. Poet:Li Qingzhao Poem:Last Song 《夏日绝句》 Li is one of the few famous women poets in China\’s history.She uses the story of a great hero Xiang Yu to show
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Our Chinese teacher rides to work every day. (改为同义句) Our Chinese teacher goes to work ______ every day.
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