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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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Here are a lot of photos of my ______(people who are in the same class as you at school).
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William Shakespeare______to be an actor when he finished school.( )
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— How do you usually celebrate birthday in your country? — We usually make a wish before all the candles.( )
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I can\’t r ______the student.What\’s his name?
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You\’ ll get ______(更强壮) and you\’ ll do ______ (更好)in P.E.
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great progress Alice has made!I\’m so proud of her.( )
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ask bad before buy kind know like never speak why what with A man often(1)______ oranges from an old woman.After giving the money,he always takes out one,tries a piece of it and says it tastes (2)______before giving it b
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There are seven ______(颜色) in the rainbow.
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That sign tells us to stop here.It\’s an ______ (instruct)sign.
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—Shh!The baby is sleeping.Don\’t speak . —I\’m sorry.( )
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Those are ID cards. (改为单数句子) ____________ ID card.
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A rich man lived in a small town.He was very (1)______,but his son had started play with bad people.The father tried to (2)______his son about this,but his son wouldn\’t listen. One day,an old wise man came to the town.T
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连词成句:fix,thanks,for,the,me,machine,helping,washing ______
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Life today can be very stressful.Children need a break from the pressures(压力) and demands(需求) of their busy schedule.But(1)i ______ of letting children relax in front of the TV,parents should encourage them to do somethi
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We went c ______ (野营) beside the river last Monday.
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Liu Yang,born in 1978,is China\’s first woman astronaut(宇航员).She wrote a letter to her two children before she went into space(太空) for the second time in 2022.Here is the letter. "I love you very much.I didn\’t want you
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When ______Amy often ______(wash) her clothes?
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I like English. What about ______?( )
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on,Liuyi Road ______
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It often ______ here in summer.Look!It\’s ______ hard now.( )
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