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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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I’ll pick you up at the stop sign where 50meters ahead the two roads .( )
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Alice is a middle school student.Here is the information (信息) about her ________. Playground:big Classroom building:24 classrooms Art rooms:two ( )
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Uncle Li has a farm.There are some________ on the farm.( )
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Millions of______ (tour) come to our city every year.
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There will be rain and wind in the future.(heavy,strong) ______
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A Sunshine School Lunch Menu March 5- March 9 Monday Hamburger Green Salad Bananas Milk Tuesday Sandwich Fruit Salad Cupcakes Orange Juice Wednesday Noodles Broccoli Carrots Yogurt Thursday Hot Dog Potato Chip Milk and C
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Noticeboard Lost A small white cat is missing around Lucky Shop.It\’s a little shy and afraid of dogs.If you see it,please call Mary Brown at 719-767-472. We really miss it very much. Room To Let Here in a big and nice r
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Liu Li,a thin girl,likes French fries,fruit and ice creams.She doesn\’t like rice.She often feels tired and the doctor suggests that she should eat some more meat. Chen Yang,a fat boy,likes hamburgers,hot dogs and pizzas
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—What do you want to do tomorrow,Tommy? —Let\’s go and visit the together,I want to know more about the history of China.( )
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Milan(米兰) is an old city with a long history.It was set up about 2,400 years ago.Milan is in the north of Italy.It is the second largest city in Italy.Milan is often covered in a thick blanket of fog(厚厚的一层雾).There are mo
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rich,be,they,have,write William Shakespeare (1564-1616)was an English writer.He(1)______ lots of famous plays,such as Hamlet and Romeo and Juliet.We can still see(2)______ in English and in many other languages today.Whe
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these,pair ______
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根据所给句子意思,将打乱的字母组合成单词,再将单词填入相应的句子. lucry Tina is a beautiful girl with ______hair.
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______are going to lie on the beach ______ summer holiday.( )
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______(jog) along the lake in the morning is good for us.
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It\’s ______ for us to finish the task in only ten minutes because it\’s too difficult. (possible)
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你想知道Steven叔叔的职业,可以这样问: ______,Steven?
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It is lucky for me to four hours taking a boat trip along the Yangtze River.( )
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—Sorry,Mrs.Smith.I won\’t be late again. —Jack,you should make a of being on time for school.( )
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Look! That is a (China) car.
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