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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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This is a guide dog.Its ______(own) can\’t see.
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He was _______ tired _______ go riding.( )
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The story is_________and all of us are_________in it.( )
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Don\’t the door when you go out.( )
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— Have you watched the latest film You Only Live Once? — Of course!I have watched it twice.I have never watched a(n) film than it.( )
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Though I live in the forest _____ I don\’t feel _____.
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just now ______
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—Would you please tell me ______ use this camera? —No problem,but you\’d better read the instructions first.( )
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Helen\’s Health Problem What the problem is A bad (1)______ Why the problem is The (2)______dinner last night What she had for lunch Some(3)______ Where she\’ ll go tomorrow To the (4)______ What will happen if she\’s st
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When the national hero came into the hall,everyone became_______and stood up to welcome him.( )
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能在那些人面前讲话,你真勇敢. It was ______ of you to speak in front of all those people.
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Name Hobbies In the past Now Nancy She was a movie fan (1)______years ago. She\’s fond of (2)______ music. Tom He used to go fishing. He\’s interested in (3)______ flowers. Maria She loved keeping (4)______. She prefers
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You\’d better ______ (not talk) so loudly since your mom is sleeping.
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Running is a good way to keep .My family all like running.( )
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我们经常在周六晚上去闲逛. We often ____________on Saturday night.
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Mr Black was a fisherman.He usually set off in the early morning and got all the tools (1)r ______for work.One day,the fisherman went to catch fish as usual.When his boat(2)r ______the right place in the sea,he threw a l
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—Hello!May I speak to Jack? —Sorry.He to the library.( )
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在我们四个人当中,她在家庭作业上花费的时间最少. ______
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-I don’t know when ______tomorrow. -I will call you as soon as he _________.
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-Do you know how to spell word "square" in English? -Yes. It begins with "s".( )
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