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1、学习好资料欢迎下载第二单元四则混合运算和应用题“四则混合计算式题”教学设计（一）教学内容：课本第11 页 例 1、例 2 教学目标：通过学习使学生进一步掌握四则混合计算式题的计算顺序，提高学生的计算能力。教学重点：四则混合计算式题的计算顺序。教学关键：良好的计算习惯。教学用具：幻灯、小黑板教学过程：一、准备练习1、写出综合算式（幻灯出示）145 529 31 11341 1080 36 17929150 9 341350 54（）700 3502 200（）（）综合式：综合式：综合式：2、说出下运算各题的运算顺序120144 1835 （15837）（6445）学习好资料欢迎下载第 1 题由学
2、生说教师标运算顺序；第2 题由学生自己标运算顺序。指名讲运算顺序：先乘除后加减，有小括号的先算小括号里面的。二、学习新课1、教学例1 出示尝试题34745 24160 52 学生同桌互说运算顺序学生尝试练习学生反馈做的快的同学板演在黑板上。347908 4378 学生互相评价429 2、教学例2 出示尝试题（5837）（69 9 5）学生同桌互说运算顺序哪两步可以同时计算，为什么？学生尝试练习学生反馈做的快的同学板演在黑板上。95（64 45）95 19 学生互相评价5 3、集体练习文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B
3、8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F1
4、0 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7
5、文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U
6、1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5
7、F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3
8、I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W
9、1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7学习好资料欢迎下载151515（9454 9）1420 58064 21 28 让学生说说运算顺序学生独立运算学生反馈三、文字题练习1、280 减去 320 除以 20 的商，差是多少？学生读题并说明数量关系280商差算式280320 20 2、52 加 65 的和，除以13，商是多少？学生读题并说明数量关系和 13商算式（5265）13 3、比较为什么第2 题要添小括号而
10、第1题却不需要？4、你能把他们改写成文字题的形式。65 345 23 56（33 21）四、课堂作业课本第 12 页 第 2 题的 3、4 两小题。第3 题 共 6 小题。板书设计：四则混合计34745 24160 52 （58 37）（699 5）文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W
11、1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1
12、V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2
13、G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F
14、6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9
15、E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9
16、S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7学习好资料欢迎
17、下载34790 8 95（6445）4378 95 19 429 5 151515（9454 9）142058064 21 2 1、280 减去 320 除以 20 的商，差是多少？280商差算式280320 20 2、52 加 65 的和，除以13，商是多少？和 13商算式（5265）13 文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10
18、ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档
19、编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B
20、8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F1
21、0 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7
22、文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U
23、1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5
24、F10 ZF2Z9S2G3I7学习好资料欢迎下载文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10
25、ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档
26、编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B
27、8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F1
28、0 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7
29、文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7文档编码:CD9F6W1U1B8 HW1A9E1V5F10 ZF2Z9S2G3I7