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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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根据汉语提示完成句子。 【1】她说话的声音很大,我在这边都听到了。 She spoke_______loudly_______I heard her even from here. 【2】你能看出天空中有什么异常的东西吗? Can you see ______ _______ in the sky? 【3】你练习得越多,犯的错误就越少。 ______ _______ you practice, ______ _______mistake
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New rules and behavior standards (行为规范) for middle school students came out in March. Middle school is going to use a new way to decide who the top students are. The best students won’t only be the ones who have high mar
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A kind of little cars may be seen in the streets in the future. People will like this kind of small cars better than the big ones. The car is as small as a bike. But it can carry two people in it. Everybody can drive it
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根据每小题所提供的图画情景和提示词,写出一个与图画情景相符的句子。 【1】work________________________________________________________________ 【2】chat ________________________________________________________________ 【3】school, provide_______________________
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Each nation has many good people who help to take care of others.For example,some high school and college students in the U.S.A. often spend many hours as volunteers in the hospitals,orphanages(孤儿院)or rest homes.They rea
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Mr. and Mrs. Harris had always spent their summer holidays in a small hotel at the seaside near their hometown. One year, however, Mr. Harris made a lot of ________ in his business, ________ they decided to go to a forei
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As middle school students, we should live a healthy life. But how can we live 【 1 】 healthy life? Here is some advice that can help you well. Firstly, we should have enough sleep, or we will feel 【 2 】 (sleep) the next d
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(2020 原创 ) Can you help me take ______ the garbage? I'm a little busy.
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(2020 原创 ) Tom stands out in the f ______ of English. He is good at English.
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(2020 原创 ) Don't make too much noise in p ______ place. It's impolite.
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(2020 原创 ) Linda has made a ______ (decide) to go abroad to visit her aunt this summer holiday.
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(2020 原创 ) Lu Xun is one of the most famous ______ (write) in China. He influences us a lot.
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Would you like to challenge yourself to speak _______ public?
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