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高频错题
#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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The world\’s(1)______(one) large language model(LLM) for moon study is coming!It makes studying the moon much(2)______(easy). "We call the LLM the \’smart brain\’ for the digital moon,(3)______ it has the most moon infor
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You can see five ______(钥匙)on the table.
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Mary and I ______ in the same grade.(be)
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Let\’s ask Tina to go to the park with us. (改为反意疑问句) Let\’s ask Tina to go to the park with us, ____________?
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—Is a cute dog in the picture? 一No,there isn\’t.( )
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— What does your father do,Li Hua ? — He is a .He works at a university.( )
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你想知道Tom在几班,你可以这么问( )
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用三笔写完的大写字母是 .( )
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One day five fishermen go fishing.They are lucky.Each fisherman gets a big fish. "What a fine dinner we will have!"says one fisherman."Now let\’s go home." "Are we all here?Let me count first,"says another. "One,two,thre
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He is a_______basketball player.He does_______in playing basketball.( )
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I\’m a rock music lover and I play the electric guitar in the school band.Sometimes I write songs and share t(1)______ online.There is so much f(2)______ in music.Music is also my grandpa\’s hobby.He likes playing the er
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Maria,Grade Seven ______
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It\’s hard to make good use of time at junior high.A to-do list can help you plan your day and remember important things! Step 1:Make a list Write down all the things you want to do or need to finish. For study Doing hom
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The basketball the bed isn\’t mine.( )
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—I can\’t find the mistakes in my report.Can you ______ for me? — Sure.Let me take a look.( )
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-What do you have _____your neighbourhood? -Supermarkets,restaurants,a school and a hospital.( )
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you to wishes Best(.) ______
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What about______ (go) to the shop?
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The twins ______ (be) fond of the new idea in the magazine article.
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I am John.I like(1)______on big trips.I usually(2)______on a trip on my summer holiday.I often go to London(3)______my parents.Because my grandparents live there.But last summer holiday.I(4)______go to London.My parents
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