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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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Amy和Millie想要在未来改变她们的生活吗? Would Amy and Millie like ______?
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I ________,so I didn't know where I was.( )
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Elephants are the biggest animals that live on land.They live on grasslands and in forests of Africa and Asia.Elephants have long noses called trunks.They have big ears like fans.Their skin is gray-black.They have some s
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You need to ______ your name at the end of a letter. (signature)
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I\’d like to write a letter to Judy . (对划线部分提问) ____________ you like to write a letter to?
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Sarah is from Canada.She is (1)______ (1.60 metres/160 kilograms) tall.She likes (2)______(does word puzzles/doing word puzzles) and going hiking.She usually comes to school (3)______(walk/on foot).Her school is big and
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His name is John Brown.John is his name and Brown is his name.( )
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True friends are not easy to find,so we should do our best to find a real friendship and keep it. When we are with our friends,we should try to make them closer to us.Smiling is one of the easiest ways.People like to see
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Emma is a middle school student.She loves Chinese paper cutting.She learned about this art when she went to a (1)______ with her family.At the festival,she saw beautiful red (2)______ designs(设计).Emma wanted to know how
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设计师们欣赏各种各样的艺术作品. ______
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The trees are green . (对划线部分提问) ____________are the trees ?
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I like elephants . (对划线部分提问) ______ do you ______ elephants?
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They often swim in the river to take exercise (用now 改写句子) They ______ in the river to take exercise now.
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-Frank, what do you think of physics? -I think it\’s ____ math.( )
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There are 3 ______ (pencil) and some ______ (key) on the desk. (用所给单词的正确形式填空)
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Jack,you\’d better a lesson from this experience.You\’re not a child anymore.( )
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Millie always ______ (say hello to her) teachers when meeting them.
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遇到困难的时候,爸爸经常鼓励我. ______
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A week later,Emma opened her notebook ______(nervous).
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Our family ______ a picnic in the park next Sunday.( )
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