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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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﹣ do you go to Putian Library? ﹣ Once a week.( )
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Dave swam in the pool last summer vacation. (对划线部分提问) ____________ Dave swim last summer vacation?
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--_____do you exercise ? --I exercise twice a week.( )
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housework,often,helps,Tom\’s,with,brother ______.
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-I can\’t believe you made it to the top of the mountain! -Yes,it is hard work.I didn\’t believe I could do it ______I reached the top.( )
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"A friend in need is a friend indeed."is one of my favorite ______(谚语).
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My brother always writes stories in English on the weekend.( )
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—I\’m worried about the math test. —Nothing is as long as you study hard.( )
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The box is very ,so I can\’t carry it by myself.( )
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With the teacher\’s help,Susan\’s English has progressed r ______(快速地).
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is,name,what,your,please (, ) (?) ______
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—I don\’t know if it will be sunny tomorrow. —If it ________ tomorrow,I will stay at home.( )
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Correct one mistake. Example:I is a student. is →am There will have a sports meeting if it doesn\’t rain next Friday. ______
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—Where is Jimmy? —He________in the classroom.( )
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—How long have you the basketball team of the school? —For about two years.( )
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A:Hello,this is Jane speaking. (1)______ B:Jane,this is Linda speaking. A:Linda,I didn\’t see you at school for days. (2)______ B:I was ill last week.I had to stay at home for several days. A:Oh,I\’m sorry to hear that.H
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Mary\’s parents her a bicycle as her birthday present last week.( )
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-We all went to the cinema except your last night.Why didn\’t you come? -Because I______that movie twice.( )
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Telephone Message Date:November 4,2024 Time:9:35 From:David Green To:Mia Smith Caller\’s number:685—8766 Telephoned √ Will call again Wants to see you Please call back √ Message:He wants to know what time you are meeting
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will be difficult,if you keep trying your best.( )
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