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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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After a serious disease(疾病),Raghu Makwana lost his legs. He had to walk with the support (支持)of his (1)h______. One day,Raghu and a few friends thought of (2)d______a small act of kindness. Raghu offers help to a lot of
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The electricity station in our community happened to be repaired last Saturday, so the workers cut off our electricity that day. We all thought that it must be a very (1)b______ day. Without electricity, we could do noth
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Write a passage of at least 55 words on the topic “The most important things in my life”(以“我的生活中最重要的事情”为题写一篇短文,词数不少于55个): Suggested outlines: 1. What are the important things in your life? 2. Which one do you think is th
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Imagine the situation. You are driving along a desert or on a mountain. You have no idea where you are. You passed the last house two hours ago. Then your car breaks down. It is night and it is cold. You have no mobile p
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Several bridges have been built _____ Huangpu River.( )
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Look up in the sky.You can see a plane flying _____the city.( )
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In spring,we can hear the birds singing happily _____the tree.( )
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They hid behind some brushes and kept silent. (画线提问) ______did they ______ and kept silent?
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The steel bars rose slowly from the ground . (改为一般疑问句) ______the steel bars ______ slowly from the ground?
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The girls are good singers. (改为感叹句) ______the girls sing!
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He didn't tell me anything about it. (保持原意) He ______ me about it.
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_____Gork is still looking for the aliens in his cave.( )
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John was so tired that he _____ down his bed and almost _____ asleep at once.( )
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I'm sure I've put my key____in this room.( )
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My uncle can't walk because there is with her legs.( )
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— You don’t look well. You should go to see the doctor. — ________
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I like to read all kinds of novels ________ detective ones.
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He can hardly speak any German, ________?
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We have ________ food. So we will have to find something else to eat.
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The winter holiday is coming. I ________ my grandparents in Beijing.
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