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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|}=
精选练习题目
Gui Haichao is not only an astronaut but also a teacher of a university.On May 30th,2023,he took the Shenzhou-16 Spacecraft with Jing Haipeng,Zhu Yangzhu and flew to space.And they successfully landed on the earth on Oct
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China sent Shenzhou-16 to space with three astronauts(航天员) on May 18th,2023.Do you know Liu Yang?She is China\’s first woman astronaut.She comes from Zhengzhou.In 2022,she lived in the Tiangong space station for six mont
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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 atta
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He is considered one of the most famous ______ of our time.(act)
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more;less;why;I;however;although;strong;about;in;reach;touch;take People always think that mother\’s love is the greatest love in the word.(1)______ fact,father\’s love is as(2)______as mother\’s.Father\’s love is deep a
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The Sunny Show of All Musicals The sun always shines.It is a story about the love of a father.It is mainly about Mark\’s search for his daughter. Every day you have the time of your life at the world\’s sunniest and most
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Here are a lot of photos of my ______(people who are in the same class as you at school).
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William Shakespeare______to be an actor when he finished school.( )
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①Everyone knows that Spain is home to some crazy festivals.From throwing tomatoes at one another to burning dolls made of cardboard,wood or plastic,the Spanish festivals are quite amazing.You may not have heard of the Ha
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There are many islands in the Pacific O ______.
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— How do you usually celebrate birthday in your country? — We usually make a wish before all the candles.( )
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Please write down those ______ names. (加拿大人)
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You can\’t see Jane here.She_______the guests around our school at the moment.( )
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I can\’t r ______the student.What\’s his name?
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You\’ ll get ______(更强壮) and you\’ ll do ______ (更好)in P.E.
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touch basketball a start them old because good with busy help so My best friend is my cousin,Luke.He is two years(1)______than me.I am twelve years old and he is fourteen now.He is taller than me.He is very friendly and
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阅读下面短文,在空格处填入一个适当的词或使用括号中词语的正确形式填空. Many people dream of traveling into space,but it costs too much (1)______ (make) that dream come true. (2)______ (luck),here is a chance for people who love exploring space.An unusual
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Look! The sunlight can come in the windows and warm up the whole living room.( )
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-Do you know the population of Japan? -Sorry,I\’m not sure.But it\’s______ than that of India.( )
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Once,there was a bus driver in a small village.His job was to take children to school in his red bus.(1)______,he would stop at the village center to pick up the children.Then he would drive them to a nearby village a fe
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