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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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weather we are having today!We have to stay at home.( )
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— excellent volleyball player the boy is! —I can\’t agree more.He is really great.( )
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Once,there was a bus driver in a small village.His job was to take children to school in his red bus.Usually,he would stop at the village center to pick up the children.Then he would drive them to a nearby village a few
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What news it is!Everyone is excited about it.( )
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All the students went to their teacher's birthday party Jack. What a pity!( )
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Everyone is here_______ Li Lei. He is at home.( )
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We all passed the exam __________ Wang Lei. He felt very sad.( )
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-It's a top secret. -Yes,I see.I will keep it_______you and me.( )
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The office is open _______ ______ Sundays.( )
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We are all here _______ Alice.She is traveling with her parents in Beijing now.( )
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romantic movies, she also likes to watching scary movies.( )
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Every summer,I volunteer at a golf summer camp.I(1)______(play) golf since I was six years old.As an experienced golf player,I can be an assistant coach.My job is to make sure that (2)______(we) little campers(aged 6 to
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She wasn't ____ and made many mistakes in his homework.
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Many children like eating ice cream because it tastes so (well).
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Sometimes I really don't understand some of the arts. (现代的)
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We call our friend William Will. (改为同义句) Our friend William ____________Will.
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Christmas Day is a (特殊的)festival for people in the USA
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The price of the new computer is .(昂贵的)
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What's the (总计的) number of the students in your class?
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I saw Li Ming ______ near the river on my way home.( )
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