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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
(2023九上·连云港开学考) Don't do your homework too late every night. You can't____.
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完成句子 从那时起我们就没有见过他们。We haven’t seen them (1) (2) . 【小题】 【小题】
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People like to go to this place especially in June .( )
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Zhang Lei knows the destination quite well .划线部分是什么短语?在句子中做什么成分?( )
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They walked along the river,________happily all the way.( )
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I didn\’t believe I could do the work by myself I finished the last part.( )
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My father spends much money on books,______he\’s not rich.( )
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The number of visitors travelling to Harbin has r ______since winter is coming.
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--Has your father passed the driving test? --Yes,_______ my father _______ my mother has.( )
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—Are you interested in soccer or basketball? — .I\’m on a swim team.( )
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-Is your sleeping problem getting better? -No.And ______They gave me wrong medicine this time.Can you believe that?( )
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---I can't believe you finished the work so quickly. ---That's because several classmates helped me.No wonder they say _______.( )
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His father likes keeping dogs and .( )
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The F1 driver is hugely talented, ________ he still works hard to achieve his goals.
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I met Gunter on a rainy September evening.I was rushing to catch the last bus to Prague for a meeting in(1)______ (center) Czech Republic.I got into Gunter\’s taxi and told him where I needed to go.When we arrived at the
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I think Jack has the ______ (able) to deal with the problem well.
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Jack used to in the morning,but now he is used to before going to bed.( )
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twelve,old,Peter,is,years. (连词成句) ______
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Everyone can be a person to make our motherland stronger. (use)
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Thank you very much
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