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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
My friend ______ me in many ways.(和……相似)
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Do you often have a cold or headache?If you say, "Yes",you may have a eating problem.Now answer my (1)______ please.Do you like hamburgers,French fries or chips?Do you (2)______ ice cream or soft drinks?Do you often eat
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当他走过我的课桌时,经常把我的眼镜撞到地上. ______
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she,hair,straight,has,long(连词成句) ______
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—Why did your mother look so tired these days? — Because she looked after my grandfather ______ his illness.( )
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—Where ______ you last Sunday? —l ______ at home.( )
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Jack borrowed the dictionary from his sister Jane. (同义句) Jack's sister Jane ______ the dictionary ______ Jack.
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He didn't give the bike away.He kept it. (把两句合为一句) He kept the bike ______ giving it away.
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—Daniel,you have got first prize in the competition.Good job! — .But I really did a lot of training before it.( )
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A serious disease caused his ______ (the condition of being unable to see) last year.
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There a cinema here.But now people are building a viaduct here.( )
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A:Is Nelly as tall as Vera? B:No. ______
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Have you your parents?( )
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The t ______to the swimming game is not expensive.It\’s only $30.
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—What was the weather like yesterday? —It was terrible.It rained so ________ that we could ________ go outside.( )
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-He didn\’t write____,though he had____. -So it seemed impossible for him to get a good grade.( )
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This TV show is very_____,and you can learn many things.( )
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Everyone should know how ______ (save) themselves when the fire breaks out.
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Our classroom is as as theirs.( )
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(2022八上·江北开学考) A____boy named Zhang Jiacheng played basketball well though he only has one arm.
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