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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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八年级·英语·单词拼写-单句Unit 6 An old man tried to move the mountains.

Sun Wukong cannot turn himself into a person unless he can h______his tail．

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八年级·英语·填空题Unit 6 An old man tried to move the mountains.

They were very poor when they got______ （marry） ten years ago．

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八年级·英语·填空题Unit 6 An old man tried to move the mountains.

Mary used to be afraid of the dark， but she is a little______（brave ） than before．

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八年级·英语·填空题Unit 6 An old man tried to move the mountains.

Mr． Green lives on the______（ten）floor．

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八年级·英语·填空题Unit 5 What were you doing when the rainstorm came?

Last Friday storm visited villages in Honolulu． It destroyed fourteen homes． Seven others were so badly (1) that their owners had to leave them， and fifteen others had broken windows， doors or roofs． One person was (2) ．

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八年级·英语·完成句子Unit 5 What were you doing when the rainstorm came?

2001年9月11日对每位美国人都有意义． September 11， 2001 has______each American．

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八年级·英语·填空题Unit 3 Could you please clean your room?

At the age of four，our kids began to help us with the housework．They helped (1) their pets and clean the house．Now Tate can make her bed， (2) her clothes and set （布置）the table．Last week，she even helped me (3) ．We were ha

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八年级·英语·选择题Unit 3 Could you please clean your room?

-Why did Mark get to the cinema so early？ -________ get a good seat．（）

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八年级·英语·选择题Unit 3 Could you please clean your room?

-How about this skirt，Cathy？ -It's too expensive and ________ the color doesn't suit （适合）you．（）

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八年级·英语·选择题Unit 3 Could you please clean your room?

-Would you mind ________ the rubbish on the floor，my boy？ -I'm sorry．I won't do it again．（）

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八年级·英语·选择题Unit 3 Could you please clean your room?

It's a ________ to throw good food away and we should try our best to save （节约）food．（）