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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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--What fine weather it is today!We will go on a picnic.Will you join us? --I will if my homework _______.( )
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My twin brother,Jack,and I grew up going to American schools.Well,half a year ago,I was standing in my new home in Zhengzhou. Teachers here are working so hard to teach us.Also,they try their best to help us and give us
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Love,joy,and the warm feeling of pulling together to get through tough times don\’t cost a thing.But gifts do cost money.So,what\’s a poor family to do? When Christmas season rolled around,I told my mother that the only
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Most people consider that being a parent is the most difficult jobs in the world.( )
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—How do you study for a test? —I study for a test by cards and reviewing them after class.( )
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—The government work report____________the achievements in national education. —I\’m really proud of the great changes in our country.( )
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Canton Tower (广州塔)is the highest tower in China.(1)______you stand on the top of the tower,you can get a bird\’s eye view of the Pear!River.Visitors are(2)______in taking photos of the city at the tower. In 2005,workers(
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①Have you ever paid for educational podcasts(播客) or live videos?Ask some people and most of them will say yes. "Pay-for-knowledge"has been fashionable these years.Everything you think of can be found online,skills of tal
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Characters:Evan,Mrs.Bordoni,Mr.Contei,Rita.Marco.Tom Setting:An elementary school Mrs.Bordoni:(Stands at the school gate) Good morning!You need to go straight to your classrooms,children.(A shy boy walks up,looking nervo
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Scarlet never the money and she only thinks of the others.( )
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opposite fun through if work one crowd upstairs what it example In most museums,there are many rules for us to follow.For(1)______,we are often told, "Don\’t cross that rope!Don\’t touch that!"However,the Please Touch Mu
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2021 is called the Year of the Ox by Chinese.But why is it?The oxen have been (1)______ (faith) friends of mankind.They are considered as "boats on land" for (2)______ (they)ability to carry goods.Besides,the whole body
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There are lots of dangerous and terrible insects in Northeastern India,but the tree-bees are the most terrible.They are killers.Unlike most bees which will sting (叮咬)you only if they are disturbed (打扰),tree-bees will att
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We are going to have picnic at top of the hill tomorrow.( )
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Simon was a six-year-old boy.One day he was taking a(1)______class.The teacher asked him, "If I give you one apple and one apple and one more apple,then how many apples will you have?" Within seconds Simon(2)______confid
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Where does your food come from?How is it made?In the past,many people worried about food safety(安全).But foods\’ safety is not a new worry.In 1906,Upton Sinclair wrote The Jungle.The book is about the story of a poor fami
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Mr.Brower always calls me "a tiny little boy",_____I am as tall as he is now.( )
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提示:良好的生活习惯是健康和幸福的前提.青少年阶段是养成良好生活习惯的关键时期.请以"Good Living Habits Make Me..."为题,用英语写一篇短文,介绍一下好习惯带给自己的改变. 要求:(1)请先将题目补全后再作答; (2)语言流畅、书写规范、卷面整洁,词数不少于60个; (3)文中不得使用真实姓名、校名,否则以零分计. ________________
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他把你弟弟和此事联系起来了. He ______your brother ______ the matter.
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