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1、北师大小学数学四年级下册教学设计数学四年级下册教学设计小数的意义教学设计:导入1、师:同学们,我们在日常生活和学习中经常要进行测量和计算,下面老师请两名学生到上面来,用这把米尺测量黑板的长度,其他同学用直尺测量数学书的宽度。(两名学生上来操作,其他学生就位操作)(操作完,让两生说说测量的结果)2、师:用 米作单位,黑板的长度能不能用整数表示出来?(生答:不能)师:量下来是 3 米多一点,余下的不足一米。用米做单位,就不能用小数表示出来,你知道可以用什么数表示?(学生回答的同时,师板书:小数)谁会用小数表示黑板的长度?(学生回答,教师板书)3、师:刚才下面的同学用直尺测量了数学书的宽度,用厘米作
2、单位,数学书的宽度能用整数表示吗?用小数表示是多少厘米?(学生回答)师:同学们真聪明,已经会用小数表示物体的长度了,那么究竟什么数叫做小数呢?这个问题要请同学们和老师一起来探索。(完整板书:小数的意义)评析:这一层次教学是启发诱导,实践感知,讲清小数的产生。在感知测量和计算时往往不能正好得到整数的结果,除了用分数表示外,还可以用小数表示,以此说明小数的产生和应用的广泛性,并激发了学生的学习动机。教学设计:展开新课(一)具体观察,感知小数。观察思考,初步感知。(出示米尺图,引导学生观察并思考。)师:把一米平均分成10 份,每份长多少米?(1 分米)师:用分数表示是几分之几米?(1/10 米,师板
3、书 1/10)用小数表示是多少米?(0.1 米,师板书=0.1)|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 1 页,共 14 页师:其中的 3 份是多少分米?(点击电脑闪烁)(学生回答)用分数表示是几分之几米?(3/10 米,师板书 3/10)用小数表示是多少米?(0.3 米,师板书=0.3)师:0.1、0.3 都是几位小数?(指板书面对学生提问)(生答一位小数)它们都是表示几分之几的数?(手指板书启发)(生答:表示十分之几的数)(师板书)评析:这一层次通过观察米尺图,在教师启迪下,学生积极思维,根据严密的逻辑性,探索出规律。观察讨论,再次感
4、知。(出示米尺直观感知,积极思考,完成填空)(点击电脑闪烁)师:把 1 米平均分成 100 份,每份是多少厘米?(1 厘米)用分数表示是几分之几米?用小数表示是多少米?(学生思考片刻)师:其中的 7 份是多少厘米?(闪烁)用分数表示是几分之几米?用小数表示是多少米?(学生思考片刻)师:15 厘米呢?(思考)(点击出示填空)(指名学生填空,教师板书)师:0.01、0.07、0.15 都是几位小数?(指板书面对学生提问)(生答:两位小数)它们都是表示几分之几的数?(表示百分之几的数)(师板书)评析:这一层次先让学生感知,然后提问,不直接回答,留给学生思考余地。再通过填空的形式把思考过程反馈出来。观
5、察理解,深化感知。(出示米尺图,观察思考,并完成连线)师:把 1 米平均分成 1000 份,每份长多少毫米?(1 毫米)8 份呢?(8毫米)13 份呢?(13 毫米)师:1 毫米、8 毫米、13 毫米都用 米 做单位,分别用分数、小数怎样表示?(出示连线题)师:大家一起来讨论一下,把它们用线连起来?会不会?(讨论片刻,指生回答,师相应板书)师:0.001、0.008、0.013 都是几位小数?它们都是表示几分之几的数?(学生回答,师相应板书)师:当然还可以把1 米平均分成10000份,其中 1 份是 1/10000 米,写成小数是多少米?(板书:1/10000=0.0001)评析:这一层次的教
6、学是通过教师点拨和学生观察、讨论、语言叙述,将规律灵活运用的过程,达到进一步清晰表象的目的。|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 2 页,共 14 页文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4
7、M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4
8、 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4
9、M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4
10、 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4
11、M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4
12、 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2(二)抽象概括,理解意义。再次观察米尺图,结合板书讨论问题。师:刚才我们是把1 米平均分成 10 份、100 份、1000 份的,我们还可以把1 条线段
13、、1 个正方形拿来平均分,我们把1 米、1 条线段、1 个正方形叫做 整体(师板书:整体)师:把 1 个整体平均分成 10 份、100 份、1000份这样的 1 份或几份(师相应地用手点击板书相应的位置)可以用怎样的分数来表示呢?(生答:用分母是 10、100、1000的分数来表示)(结合板书讨论出分数单位,以及相邻两个分数单位间的进率是多少?)(师相应板书:分数单位,10 个 1/1000 是 1/100,10 个 1/100 是 1/10。)师:那么同学们还记得整数每相邻两个计数单位间的进率是多少?(10)所以这些分数也可以仿造整数的写法来写。结合以上讨论结果,探索小数的意义。师:向上面那
14、样,仿造整数的写法,(指着板书)一位小数表示十分之几的数,两位小数表示百分之几的数,三位小数表示千分之几的数,按一定的大小顺序,写在整数个位的右面,用圆点隔开。我们学到这里,谁知道小数究竟是什么数呢?(出示思考题:1、什么是小数?2、小数的计数单位是什么?3、小数每相邻两个计数单位间的进率是多少?)(学生同桌讨论)(通过讨论,依次指名学生回答,师出示:小数的意义 小数的计数单位)评析:这一层次的教学,运用分数和整数的有关知识作迁移,类推出小数的概念,揭示其本质特征。教学设计:巩固练习,加深理解完成 做一做 的第 1 题,通过涂色练习,使学生领会分母是10、100、1000的分数与小数两者的联系
15、与区别。完成 做一做 的第 2 题,通过填空练习,进一步理解小数的计数单位。评析:设计有层次,有坡度,有密度,有针对性的练习,是促使学生抓住知识点,串成知识链;连成知识片,构建认知结构,促使学生形成知识技能。|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 3 页,共 14 页文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 H
16、V8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5
17、O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 H
18、V8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5
19、O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 H
20、V8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5
21、O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2教学设计:全课小结,课堂练习 师:我
22、们今天学到了哪些知识?(学生自由回答)(引导学生质疑问答)完成练习二十第1、2 题。课堂作业:练习二十的第3 题。(学生独立完成并批改订正)数学四年级下册教学设计乘除法运算学习目标:1、理解和掌握一个数除以两个数的方法。2、会运用这个除法运算性质,使一些计算简便。学习过程:一、复习导入1、口算56087180036480687209856056180018480(68)720(98)2、简便方法计算609-51-49846-121-2793、动手做24 个圆片平均分成 2 组,再把每组平均分成3 份,求每份是多少。(体会连续等分:可以分了再分,也可以先求出两次一共分成多少份,然后一次分完。)4
23、、引入新课:除法的运算性质。5、出示目标(见学习目标)|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 4 页,共 14 页文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L
24、4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G
25、4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L
26、4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G
27、4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L
28、4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G
29、4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2二、自互学习:(出示例 3)一共有 25 个小组,每个小组种了5 棵树苗。购买树苗花了1250元,每棵树苗多少钱?1、指名读题。2、(出示学习指导)(1)根据题中的信息列出算式,并计算。(2
30、)试一试,你还能想出其它的方法吗?如果有困难,可以与书进行交流。(3)对比一下,两种计算方法有什么不同?你喜欢哪一种?为什么?(4)能用语言概括一下你发现的规律吗?(5)试着用字母表示出这个规律。自学时间 5 分钟。3、学生自学(学生对照学习指导,自学,并完成学习指导的问题,将不会的问题做标注)4、小组互探(自学中遇到不会的问题,小组内互相交流。把小组也解决不了的问题记好,到学生质疑时提出,让其他学习小组或教师讲解)。三、精讲要点1、小组汇报。2、解决各小组中在自学中遇到的不会的问题。3、小结:除法的运算性质。4、练习:教材 P43做一做,指名板演。四、当堂检测1、判断|精.|品.|可.|编.
31、|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 5 页,共 14 页文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1
32、L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3
33、G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1
34、L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3
35、G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1
36、L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3
37、G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2(1)1456-(324+456)=1456-456-324(2)100(254)=100254(3)400(4025)=40040252、怎样简便就怎样算32002542000258350143、有 1440 个玩具,每 24 个装一盒,每 6 盒装一箱,一共要装多
38、少箱?猜你感兴趣:|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 6 页,共 14 页文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C
39、3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B
40、1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C
41、3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B
42、1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C
43、3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B
44、1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2不会变的是你的笑容作文700 字_小学四年级作文那个笑容,总是在我受挫折时鼓励着我;那个笑容,总是会陪着我开心;那个笑容,陪伴了我整整一个初中时代!筱筱,是我最好的闺蜜,她很文静,不会像我一样大大咧咧的,特别是她的笑容,能给人
45、力量,很温柔。同时她也是学霸一枚,在学习上帮了我很多忙,有她在,什么题都难不倒她,也正因是她,让我取得了成功。期末考试就要来了,而我正在为数学而烦恼,不知该怎么办,打了许多草稿。这时筱筱走了过来,问道:“怎么还不去吃午饭,一起吧。”我无精打采的对她说:“不行,我这题还没写出来,而且期末考试快到了,我最头疼的就是数学了,哎。”筱筱说:“身体才是最重要的,还是先去吃饭,一会儿我陪你去图书馆学习,那里安静。”我说:“好吧,谢谢你筱筱,有你真好。”筱筱笑了笑,说:“跟我还客气什么。”吃完了饭,我和筱筱就拿着习题去图书馆了,我不会的就问她,她讲题思路很清晰,一听就会,其实我以前数学还可以的,只是因为一件
46、事就自甘堕落了,那段时间没心思去学习,成绩也就下降了,是筱筱,陪伴这我,以她的笑容陪伴我度过了那段不堪的时光,她的笑容,真的能给人带来力量,我想,她以后会一直带着笑容,给我带来阳光吧!不知不觉,期末考试来了,考试前,筱筱给了我个大大的笑容,说道:“加油!好好考试,相信你自己,你会成功的。”我也回了她一个笑容,说:“你也是加油哦!”随后进入了考场,开始考试了,大家都安安静静的答卷,我也不例外。考试考了三天,终于考完了,我对自己很有信心,相信我可以考好的。筱筱也很轻松,相信她这边肯定又是第一名。看见了她,我飞快的跑过去给了她个大大的拥抱,心里很感谢她。最后,我俩笑盈盈的出去庆功。|精.|品.|可.
47、|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 7 页,共 14 页文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T
48、8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF
49、7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T
50、8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF7C3G4M5O2文档编码:CV9N7T8B1L4 HV8O9N2Z1Q4 ZF