简单的小数加减法练习教案及练习题

三年级数学知识点《小数加减法》教案三年级数学知识点《小数加减法》教案数字的世界显得冷冰冰且纯净如水晶，它可以给我们带来最为稀缺的事物，那便是“绝对准确”。

2加2总是等于4，在最原始的人类行走在地球表面之前已经是这样，在人类文明彻底消亡以后还会是这样。

下面由课件网为大家整理了关于三年级数学知识点《小数加减法》教案，供大家参考。

《小数加减法》三年级数学教案1教学内容：四年级下册数学95—97页教学目标：1、经历探索小数加、减法计算方法的过程，体会小数加减法与整数加减法在算理上的联系，掌握小数加减法的计算方法。

2、进一步增强运用已有知识和经验探索并解决问题的意识，不断体验成功的乐趣。

教学重点：理解并掌握小数加减法的计算方法。

教学难点：理解小数点对齐，也就是相同数位对齐的道理。

教学准备：多媒体课件。

教学过程：一、联系生活情境导入1、师：小数在我们的生活中很常见，老师手中的这两本书大家一定不陌生吧！一本是语文，一本是品德与社会，这两本书的价钱同样是用小数表示的。

拿出这两本书来，谁来告诉老师这两本书的价格分别是多少（语文：5.69元品德与社会：6.18元）2、师：根据我们发现的这两本书的价格信息，你能提出什么数学问题呢（两本书一共多少元两本书相差多少元）第一个问题用什么方法计算第二个问题呢师：其实，在我们的生活中很多时候都要用到小数的加减，这节课我们就一起来研究小数的加法和减法。

（板书课题：小数的加法和减法）二、尝试计算，构建新知。

1、学生尝试计算。

学生在练习本上计算，先列出横式，再列出竖式。

（指名两位同学到黑板上完成，教师巡视指导。

）师：你是怎样计算的学生交流。

师：刚才同学们都谈到了相同数位对齐，满十进一，不够减向前一位借一，这些方法，我们在什么时候用过呢（整数加减法的时候）师：那也就是说，计算小数加减法其实是按照——整数加减法的计算方法来计算的。

2、观察算式，发现方法。

师：下面请同学们观察一下这两个题，你认为在计算小数加减法时应该注意什么（小数点对齐，相同数位对齐）三、自主编题，内化知识。

人教版三年级下简单的小数加减法课时练习精选1（含答案)学校:___________姓名：___________班级：___________考号：___________评卷人得分一、选择题1．洗衣粉2元6角，毛巾4元8角，衣刷1元9角，妈妈大约带多少元去付款就够了？()A．7B．8C．9D．10【答案】D2．12.3比7.8多（）A．45B．4.5C．0.45【答案】B3．小亮买文具盒用去13元7角，还剩5角，他原来有()。

A．13.2元B．14.2元C．18.7元【答案】B4．小丽有15元钱，买书用去7元5角，还剩多少元钱？()A．7元5角B．8元C．8元5角【答案】A5．在□里填上合适的数字。

【答案】(1)9.8＋3.5＝13.3(2)答案不唯一，如9.9－5.5＝4.4评卷人得分二、填空题6．一根电线，剪下了28.6米，剩下的比剪下的多12.9米，这根电线原来有________.【答案】70.1米7．在一次跳远比赛中，李强跳了3.1米，比王亮近0.2米，赵刚跳得比王亮远0.6米．赵刚跳了多远________.【答案】3.9米8．7.5加上________就等于9。

【答案】1.59．0.4元＋4.9元＝________元________角13.3元－8.6元＝________元________角【答案】534710．小明买了一个价格是3.6元的橡皮，付了5元，应找回________元。

【答案】1.411．一根绳子长9.8米，第一次剪去5.2米，第二次剪去3.7米。

这根绳子比原来短了________米。

【答案】8.912．一根3米长的绳子，用去0.6米后，还剩________米。

【答案】2.413．在○里填上“＞”“＜”或“＝”。

4.03元○4.30元5角5分○0.5元16千克○16.4千克0.81米○8.1分米0.56元○6角5分【答案】＜＞＜＝＜＜14．至少要带（______）张2元，才够买下面的三种食品。

小学四年级数学《小数加减法》优质教案范文五篇小学四年级数学《小数加减法》优质教案范文一一、学习目标(一)学习内容《义务教育教科书数学》(人教版)四年级下册第72页例1及做一做。

在三年级，学生已经学习了一位小数加减法的计算。

在此基础上，本课时继续学习小数加减法。

例1以本单元主题图的买书情境为线索展开教学，自然引入数位相同的小数加减法的学习，重点解决的是列竖式时小数点应对齐的问题，突出计算的算理理解。

为进一步学习数位不同的小数加减法夯实基础。

(二)核心能力通过自主探索、交流讨论的过程，理解“小数点对齐就是相同数位对齐”这一本质，培养迁移推理能力和运算能力，发展数感。

(三)学习目标1.借助熟悉的生活情境，通过自主探索、交流讨论理解“小数点对齐”的道理，掌握竖式计算的方法，并能正确计算数位相同的小数加减法，养成良好的计算习惯。

2.通过计算、比较等活动经历把整数加减法计算经验迁移到小数加减法计算的过程，培养学生运用迁移规律的意识。

3.通过解决实际问题，感受到小数加减法在生活中的广泛应用，提高应用意识，增强学习数学的信心。

(四)学习重点掌握竖式计算的方法，并能正确计算。

(五)学习难点理解“小数点对齐就是相同数位对齐”这一本质。

(六)配套资源实施资源：《小数加减法(例1)》名师教学课件二、教学设计(一)课前设计1.预习任务想一想：一位小数加减法的计算方法是什么?请你任意写出几个一位数加减法的算式，并进行计算。

(二)课堂设计1.复习导入(1)口算，并说出口算的方法。

2.5+0.9=1.2-0.5=7.8+1.6=4.7-2.8=11.7+2=8.6-5.3=1.2+0.8=7.5-2.5=(2)列竖式计算3685+279=3685-279=师：你能说一说计算整数加减法时要注意什么吗?预设：生1：相同数位对齐，从个位加起，哪一位上的数相加满十，就向前一位进一。

生2：相同数位对齐，从个位减起，哪一位上的数不够减，就从它的前一位退一当十，和本位上的数合并在一起，再减。

17.6 + 0.1 =12.8 - 4.8 =9 + 1.2 =9 - 0.6 =0.7 + 2.6 =0.2 + 0.2 =11.8 - 3.7 = 6.9 + 3.6 = 1.7 + 9.9 =17.7 - 1.6 =9 + 4.3 = 6.7 + 6.8 =7 - 6.3 = 5 - 4.5 =11.5 - 6.8 =10.1 + 6.1 =10 - 6.5 =10.4 - 9.1 =10.3 - 7.3 =15 + 0.2 = 5.4 + 7.4 =2 + 7.3 =8.6 + 4.1 =12.3 + 3.1 =6.5 + 5.2 =13 + 4.6 = 2 - 1.3 =6 + 9.9 =10.8 - 6.3 =16 + 2.9 =6 - 0.3 =12.8 - 2.1 = 5.9 - 5.3 =4.1 - 0.4 = 5 + 0.7 = 5 - 1.7 =5 - 1.2 =10 - 1.4 =10 + 1.1 =10 - 7.4 = 5 + 4.9 =8.8 - 5.5 =12.6 + 0.2 =6.1 + 2.4 =0.6 + 6.3 =练习范围：简单的小数加减法 题数：100月 日姓名: 分秒成绩:14 + 0.2 =10 - 6.3 = 2 + 2.9 =9 + 4.4 =10.1 - 2.1 =7 + 8.3 =10.5 + 2.7 =9.8 - 7.9 = 2 - 0.9 = 12 + 1.5 =10 - 9.4 = 1 + 3.5 = 9.5 - 2.3 = 1 + 6.9 =14.1 - 6.5 = 14.1 - 2.5 =9.5 + 3.9 =12.1 + 6.7 = 11.4 - 7.1 =10 + 3.5 =8.2 + 4.3 = 6 - 1.4 =0.2 + 6.8 = 3.7 - 0.4 = 2 + 1.2 =7.5 + 2.3 = 3.3 + 9.8 = 11 + 3.9 =9 - 2.1 =9.4 + 6.4 = 3.8 - 0.3 =0.6 + 6.4 = 5.5 + 5.1 = 6 - 2.1 =0.9 + 4.5 =9.3 - 1.4 = 4.7 + 6.2 =15.7 + 4.1 =7 - 2.9 = 7.1 - 0.1 =8 + 7.8 = 2.8 + 1.5 = 5.7 + 1.6 =8.6 + 5.7 = 1 + 9.3 =8 - 5.9 = 2 + 2.8 = 5 + 7.8 = 15 + 4.2 = 4 - 0.4 =12 + 5.1 =9 - 0.8 = 5.1 - 4.9 =10 + 0.2 =10.8 - 5.2 =4.6 + 1.6 =5.9 - 5.3 =13.7 - 7.6 =8 - 2.1 = 6 - 5.4 =7.8 - 1.3 =10 + 8.1 = 4 + 3.1 = 5.8 + 2.7 =7.1 + 3.7 =13.4 - 2.4 =9.7 + 5.3 =7.5 - 3.9 =10 - 7.4 = 1 + 9.9 =7 + 5.1 =8.8 -6.6 =8.2 + 6.9 =9.5 -7.5 =17.9 - 0.5 = 4.1 + 6.4 =14 + 0.9 =11 + 2.8 = 5 + 0.3 =19.6 - 0.9 = 3 +8.8 =11.1 + 6.1 =5.4 + 7.4 =15 + 4.2 =9 + 4.4 =5 + 0.7 = 2 - 0.7 =9 + 1.9 =14.3 + 3.3 =8 - 6.2 =9 - 1.4 =17.2 + 0.7 = 4.7 + 6.2 =9 + 3.7 =9 - 1.7 =10 -9.4 =0.7 + 2.6 =4 - 1.1 =17 + 2.7 =2 + 1.4 =练习范围：简单的小数加减法 题数：100月日姓名: 分秒成绩:0 + 6.2 =7.5 + 2.3 =17.2 - 2.5 = 9.9 - 5.3 =12.1 - 1.2 = 2 + 2.3 = 17.7 - 1.6 =14.1 - 2.5 =18.3 - 8.8 = 9.8 - 7.9 =11 + 3.9 =12.1 + 1.7 = 9 + 7.7 =17.7 - 4.9 =10 - 3.6 = 7 + 0.7 =10.2 - 7.6 =10 + 6.8 = 9 + 0.3 =19.9 - 5.2 = 3.7 - 0.4 = 11.4 + 1.9 = 3 - 0.2 = 6.7 + 6.8 = 10.1 - 0.1 =10.4 - 9.1 = 5 + 4.9 = 12.6 + 0.2 = 3 + 1.1 =7 + 2.7 =7 - 0.3 =10.8 - 6.3 =0 + 0.6 = 12.2 + 6.6 = 3.3 + 9.8 = 3.1 - 0.5 = 4.7 + 2.8 =9.7 + 1.3 = 6.9 + 2.1 = 9 - 2.1 =10 - 4.2 = 4.7 + 7.1 = 13.8 - 5.2 =7.3 + 4.2 =9.2 - 8.4 = 2 - 1.3 =8.4 - 4.6 =13.9 + 3.4 = 2 - 0.9 =12 + 2.3 =10 + 3.5 = 4 + 5.7 =9.7 - 7.6 = 4.5 + 4.5 = 2 + 1.2 =13.6 + 2.7 =7.5 + 5.6 =8 - 5.8 =10.4 + 7.3 = 5 - 2.1 = 3 - 2.8 =8 - 6.6 = 1.9 + 5.6 =10.2 - 6.6 =13 + 1.2 =16.9 - 1.3 =12 + 5.4 =15 + 3.7 = 4 + 5.7 =17.6 - 5.9 =11.8 - 6.1 =10 - 8.8 = 4.4 + 0.3 =9 + 2.5 =15 + 0.1 =16.3 - 4.5 =5.7 + 7.4 =13 + 1.8 =11.2 + 0.6 =1.5 + 4.5 =8 - 2.1 =7.2 - 2.8 =11.2 - 6.3 =11.9 - 2.2 =9 - 6.6 =6.8 - 4.1 = 5 + 7.4 =10 - 0.8 =6.4 - 4.2 = 6.7 + 4.4 =14 + 0.2 =15.8 - 2.5 =9 + 1.6 =16 + 3.6 =17 + 1.6 =16.2 - 2.8 =9.7 - 8.5 =1.2 + 9.8 =7 - 3.7 =5 - 3.5 =练习范围：简单的小数加减法 题数：100月日姓名: 分秒成绩:13.4 - 8.4 = 6.6 + 2.6 = 6 + 2.2 =4 - 3.4 = 3.4 - 0.2 =14.1 + 1.7 = 11 + 8.8 =5 + 6.1 =18 + 1.1 = 10 - 4.3 = 4 + 2.2 = 2.7 + 0.8 = 3.8 + 9.1 =10 - 3.3 =10 - 7.9 = 10 - 2.8 = 4 - 1.5 =10.5 + 2.3 = 10 + 5.4 =19.4 + 0.2 =18.5 + 0.4 = 6.7 - 0.7 = 2 - 1.7 =0.9 + 0.1 =10 - 5.8 = 6.2 - 1.4 =9.7 - 9.6 =11 + 4.7 =15 + 3.3 = 2.3 - 0.1 = 6 - 1.6 =16.7 - 1.7 = 3 + 3.2 = 8.5 - 5.9 =18.8 - 4.1 =8 - 0.8 =7 - 4.9 = 3.5 + 5.8 =0.8 + 3.8 = 13 + 4.3 =9 - 3.4 =11 + 5.8 = 10 - 8.2 =12.9 - 7.7 =10 + 7.5 = 1 - 0.2 = 5 - 4.5 = 6 - 5.1 = 15.1 + 0.9 = 5 + 6.9 =16 + 1.2 = 11 + 1.6 =8 - 4.3 = 4.2 + 9.5 = 10 + 7.7 =12.7 + 3.3 =0 + 2.1 =9 - 2.1 =15 + 4.2 = 4.6 + 1.6 =9.8 - 7.9 =10.8 - 6.3 =13.6 - 1.7 =9 - 5.8 =15 + 0.9 = 3 + 3.9 =0 + 7.2 =9.6 - 7.4 = 3 - 0.6 =9 - 1.9 =7 - 6.3 = 1 + 6.9 =9 + 0.3 =0.2 + 5.3 = 3 + 7.4 =10.8 - 5.2 =9 - 7.5 =12.6 + 7.1 =10 + 4.4 =16.5 - 9.3 =9 - 1.6 = 4.6 + 5.5 =0.2 + 6.8 =7.1 + 8.1 = 5 + 9.7 =4 + 2.6 = 6 - 4.6 = 2 + 1.4 =5.1 - 4.9 =7 - 0.9 =12.6 + 0.2 =0.6 + 6.4 =14 + 2.2 = 2 + 8.9 =4 - 0.4 = 6.7 + 6.8 =11.3 - 9.2 =5 + 1.6 =5 + 4.9 =15.8 - 4.8 =练习范围：简单的小数加减法 题数：100月日姓名: 分秒成绩:2.8 + 1.5 = 5.9 - 5.3 = 2 - 1.3 =6 - 1.4 =13.4 - 2.4 =0.7 + 2.6 = 10 + 0.2 =13.9 + 3.4 =11 + 2.4 = 8.7 - 0.1 =9 - 1.1 = 6 + 9.1 = 19.4 - 7.3 =17.7 - 1.6 =12.8 + 6.5 = 9.7 + 1.3 =19.7 - 6.3 =0 + 7.4 =3 + 6.7 =11 + 3.9 =10 - 6.9 = 13 + 4.6 =8 - 6.7 = 5 + 8.1 =9 - 1.4 =10 + 3.8 =8.6 + 4.1 = 3.8 - 0.3 = 5 - 0.7 =0.4 + 3.4 = 5 + 6.1 = 4.3 + 8.8 =10 - 7.4 = 2.4 + 7.1 =18.3 - 8.8 = 2 - 1.5 =1 + 6.7 =15 + 0.2 =11.1 + 6.1 = 19 + 0.3 =14.6 + 4.1 = 2 - 0.6 = 17.2 - 6.7 =9 - 7.9 =8 - 5.9 =3 + 1.8 =13.4 + 3.4 =19.6 - 7.9 = 6 - 3.3 =17.4 - 4.8 =17.7 - 3.7 =5 + 6.3 = 5 - 4.5 =10 - 9.2 = 14 + 0.2 =1.3 + 3.5 =9 - 3.2 =14.1 + 1.7 =9 - 6.7 =2.6 - 0.9 =18.2 - 4.5 =9 -3.4 =10.2 - 3.6 = 5 + 9.6 =6 - 3.8 =10.5 - 8.5 = 6.6 + 7.4 =7.7 + 9.8 =17.8 - 9.2 =8.6 - 7.3 =5.3 - 2.2 =9 + 6.1 =18.3 - 3.6 =8 - 5.6 = 2.8 - 0.7 = 6 - 2.2 =10 + 6.3 =16.4 - 5.2 = 3 + 5.8 =2.4 - 1.8 =11 + 1.4 =15 +4.1 =11.7 - 6.6 =7.4 + 0.3 =9 + 7.9 =1 + 2.8 = 2.4 + 4.2 =16 + 0.2 =7 - 4.3 =8.7 - 2.3 =8 - 4.9 =16.6 - 1.6 =12 + 4.8 =10 + 8.5 =2 +5.7 =17.2 - 4.7 =0.8 + 0.5 =1.8 +6.1 =11.7 + 4.1 =8 - 0.2 =练习范围：简单的小数加减法 题数：100月日姓名: 分秒成绩:3 - 1.4 = 6.6 - 6.5 = 3.1 + 2.2 = 16.3 + 0.1 =11.9 - 7.1 =8 - 0.7 = 7.5 - 3.8 = 3 + 1.9 =8 + 8.8 = 10 - 0.7 = 2 - 0.1 = 1 + 4.1 = 0.1 + 3.7 = 5.6 + 8.2 = 5.4 + 6.3 = 8.8 + 7.8 = 5.3 + 5.6 =15.4 - 0.2 =5.6 - 2.1 =12.1 + 7.9 =12 +6.6 =6.8 + 4.3 = 4.8 - 2.6 = 3.8 + 1.6 =8.9 + 0.5 =11 + 1.6 =9 + 9.2 =9.6 + 5.5 =17.8 - 2.2 =11.9 - 3.1 = 5.2 + 9.3 = 5 - 4.2 = 6 + 0.8 = 3.8 + 4.6 =12 + 3.2 =11.7 + 3.9 = 8.6 - 8.4 =9.3 + 0.1 = 6 + 8.6 =4 + 4.5 =10 - 0.5 = 1.5 + 7.8 = 17.6 - 6.3 =9.5 - 7.8 =7 - 6.1 =4 - 1.4 =9 + 8.2 =7 - 5.9 =1 + 6.4 =17.8 - 2.7 = 4 - 1.1 =2 - 0.3 = 3.8 - 2.5 =4 - 3.2 =7 - 0.5 =7 - 0.3 =7 + 7.7 = 3 - 1.5 =7.7 + 1.9 =16 + 2.2 =7 + 1.6 =2 + 7.7 =0.7 + 2.3 = 1.1 + 8.3 =5 - 3.6 = 1 + 3.2 = 2.4 + 6.4 =9 - 8.9 =13.3 - 2.6 = 3 - 1.9 =8.3 + 7.8 = 2.9 - 0.1 =8.8 - 6.2 =6.2 - 5.1 =9 + 4.8 = 4 + 7.9 =9.5 - 7.9 =14.7 + 1.8 = 4.9 + 5.6 =6 - 4.9 = 4.6 + 3.5 =7 - 0.9 =9 - 5.5 =16.2 - 3.2 = 5 - 0.8 =18.8 - 2.3 =0.3 + 2.2 =0.7 + 1.1 =11.1 - 9.2 = 4 - 3.2 = 6.4 + 2.7 =10 - 8.9 =17.5 - 7.2 =9 - 4.8 =3.3 + 0.3 =10 - 6.3 =7.9 + 1.2 =1 + 3.9 =7 + 3.9 =3 + 0.2 =练习范围：简单的小数加减法 题数：100月日姓名: 分秒成绩:6.1 - 5.2 = 4 + 0.2 = 2 + 5.7 = 15.2 - 0.6 = 5 + 3.2 =7 + 9.5 = 19.4 - 4.6 =15 + 3.2 =16.1 - 3.8 = 16.7 + 1.8 =8.7 - 1.7 =7 - 5.8 = 6.6 - 3.4 = 6 +7.4 =18.9 - 0.8 = 8.5 + 1.9 =10 - 3.8 = 3 + 4.4 = 17.9 - 2.8 =10 - 3.4 = 4.5 + 3.4 = 17 + 2.4 = 4.6 + 0.9 =8 - 3.6 = 11 + 2.7 =11 + 0.6 =9 - 6.2 = 10.6 - 1.8 =10.8 + 3.8 = 5 - 1.3 =9 - 2.8 = 5.9 + 6.4 = 2.5 + 3.8 = 7.6 - 0.9 = 3 + 2.9 =10 + 1.7 = 2.8 + 8.3 =10.3 + 2.8 =16 + 3.4 = 5 - 1.7 =7.3 + 3.6 =7 - 1.3 =8 + 4.5 =8 - 4.5 =13 + 1.2 = 19.9 - 4.2 =14.6 - 3.4 =10 + 0.5 = 12 + 7.5 =13.9 - 0.2 =8.7 + 3.5 = 5 + 0.6 =16.3 - 9.6 =0 + 7.6 = 11.9 - 4.4 =4 + 3.1 =9.9 - 5.3 = 1 + 3.5 =0.3 + 0.9 =17.5 - 9.7 = 5.9 - 5.3 =7 - 6.3 = 5 - 3.6 =16.5 - 9.3 =10 - 4.4 =12.8 - 4.2 = 4.6 - 1.1 =10 + 6.8 = 3 + 5.1 =10.7 + 6.6 =6 - 5.4 =8 - 7.8 =9 - 0.4 =11 + 1.2 =9 + 1.9 =8 - 2.5 =8 - 4.5 = 4.9 - 3.2 =14.1 + 4.2 =5 + 8.1 = 2 - 1.3 = 2 - 0.9 =3 - 2.8 =10.4 - 9.1 = 2 + 1.5 =10 - 1.4 = 5 + 0.7 =17.4 - 6.9 =5 + 4.9 =7 + 8.3 =9 + 3.8 =14 + 0.2 =0 + 2.8 =10.9 - 0.3 =12.9 - 4.7 =12.7 + 3.3 =13.7 - 7.6 =9.2 - 4.3 =4 - 0.4 =1 + 6.1 =练习范围：简单的小数加减法 题数：100月日姓名: 分秒成绩:17.3 - 7.4 = 3.3 + 9.8 = 5 - 4.9 =1 - 0.4 = 4 - 1.7 =13.4 - 2.4 = 3.7 - 0.4 =8 - 1.9 = 6.7 + 6.8 = 9 + 0.3 =2 - 0.2 =14 + 3.6 = 11.1 + 6.1 =9 + 4.4 = 6 - 2.9 =5 - 4.5 =12 + 1.5 = 1.5 - 0.8 = 9.8 - 7.9 =17.4 - 4.5 =0.2 + 6.8 = 8 - 6.2 =10 + 3.5 =11.7 - 1.3 = 11.3 - 1.1 =13.1 - 4.9 =11.3 - 5.3 = 13.6 - 3.4 =8 + 6.6 =18.7 - 4.3 = 12.4 - 6.5 =10 + 9.4 = 3 - 1.1 = 7.5 + 2.3 =0.7 + 2.6 = 6 - 5.2 = 13 + 5.9 =12.7 + 0.2 = 2 + 1.2 = 9.7 + 1.3 =17 + 0.9 =19.9 - 5.2 =13.9 + 3.4 = 2 - 1.2 =0 + 8.5 =14.4 + 0.2 =13 + 4.3 =7 + 0.7 = 12.6 + 0.2 =9.3 - 1.4 =17.7 - 1.6 = 9.1 + 7.4 =14.6 + 2.5 =10 - 3.6 = 7.2 + 6.7 =8 - 1.2 =17.2 - 6.3 =10 + 2.3 =11.5 - 8.3 =10.5 + 2.6 = 4 + 7.2 =6 + 6.3 =8 + 3.5 =9.1 + 7.3 =0.1 + 1.9 =15.3 - 8.9 =7 - 1.4 =8 - 6.2 = 4 + 8.1 =10.3 - 3.9 =3.7 + 5.6 = 3 + 8.8 =10.5 - 9.5 =8 + 2.7 = 3 + 5.3 = 3.2 + 8.1 =16.4 - 6.6 =10 + 1.5 = 4 - 3.5 =9 - 0.2 = 3 + 4.9 = 5.2 + 8.2 =10 - 8.1 =9 - 4.8 =15.5 - 2.8 =2 - 0.7 =9 + 1.1 = 2.9 + 7.1 =17.1 - 2.8 =8 - 6.8 = 3 + 8.9 =1 + 2.4 =12.5 + 7.4 =9 - 7.7 =0 + 4.6 =9 - 8.6 =19.9 - 2.2 =18.5 - 0.4 =7 - 5.6 =15.4 + 1.6 =练习范围：简单的小数加减法 题数：100月日姓名: 分秒成绩:2 + 8.7 =11.7 + 7.6 =8.2 - 7.4 = 12.4 + 7.6 =10 + 0.8 =9 - 2.4 =8 - 1.1 =13 + 4.8 = 6 - 2.1 = 3.1 + 0.6 =10 + 4.7 =9.4 - 2.8 = 9.1 - 6.7 = 3 + 6.9 = 5 - 0.3 =4 - 2.1 = 6.7 - 3.6 = 6 + 9.8 = 14.5 - 6.8 =0.1 + 2.1 =14.2 - 3.8 = 9.1 + 9.3 =7.9 - 6.7 = 2 + 8.4 = 15.5 - 7.5 =16.7 - 2.2 =6 + 1.8 = 7.3 + 4.5 =15.2 + 4.5 =19.5 - 7.9 = 10 + 5.8 =10 - 5.5 =8 + 1.3 = 8.6 - 6.2 =13 + 3.2 = 1 - 0.2 = 19.6 - 5.7 = 1 + 7.9 = 2.5 + 0.7 =8 + 0.8 =7.9 - 6.6 =18.5 + 1.5 = 7 - 6.6 =9.1 + 2.9 =9.5 + 1.5 = 10 - 2.5 =9 - 0.8 =8.6 - 4.4 = 6 - 3.8 =8 - 0.3 = 4 + 3.8 =6 - 0.4 = 4.7 + 6.9 =11.9 - 1.2 = 18 + 0.4 =4 - 3.1 = 3.5 + 4.7 =17.4 - 3.1 =10.9 - 7.1 =18 + 1.4 =8 - 1.4 =9.5 + 6.6 =8.2 + 9.2 = 6 - 0.2 =0.1 + 1.7 =13.5 + 1.8 = 3 + 6.9 =1.2 + 1.8 =9.8 + 6.3 = 1 + 0.3 =6 - 2.6 = 4 + 0.2 = 1.7 + 6.5 =4.2 + 3.4 = 5 + 9.9 =9.3 - 1.5 =7 + 7.7 =10.9 + 0.5 = 4 - 0.3 =9 + 5.1 = 6 - 4.8 =9 - 2.1 =14.8 + 4.6 = 5 + 7.2 =16.6 - 7.5 =17 + 0.9 =18 + 1.7 =8 + 8.3 =1 + 6.1 =9.8 + 4.2 =11.1 - 8.3 =0.3 - 0.1 =10 - 3.7 =8.6 + 2.2 =10 - 7.8 = 6 - 0.6 = 5.9 + 0.9 =17.2 - 7.6 =0.3 + 9.4 =10.3 + 4.7 =练习范围：简单的小数加减法 题数：100月日姓名: 分秒成绩:16.1 - 2.6 = 6 + 7.4 =8 - 0.4 = 12.8 + 2.2 =9 - 8.9 = 6 + 9.9 = 16 + 0.9 =15.8 + 2.8 =8 - 4.5 =0 + 0.9 =7 - 4.2 = 1.5 + 5.3 = 14.9 - 7.7 = 1 + 2.5 =8 - 6.4 =6 + 6.1 =11.8 - 9.3 = 4.4 + 6.4 = 2 + 5.6 =14 + 5.1 =9 - 3.7 = 4.8 + 0.6 = 3.5 + 9.6 =10.9 - 8.7 = 9.1 + 4.3 =11 + 8.8 = 2.4 - 1.5 = 14.7 + 3.9 = 5 - 4.6 = 4 - 0.4 = 18.2 - 9.3 =8.3 + 1.4 =17.8 - 0.8 = 3 + 3.8 =17.4 + 1.3 = 6 + 6.9 = 12 + 3.8 =14.5 - 0.6 =10.9 + 6.9 = 10 - 7.1 =14.2 - 6.2 =9 - 5.8 =7 + 4.6 = 4 - 0.6 = 2.8 - 1.5 = 12 + 1.6 = 5.3 + 5.2 =9.6 + 0.9 = 6 - 3.7 =11 + 1.8 =15.8 - 3.7 = 11.1 - 1.7 = 4 + 1.8 =9.4 + 3.2 = 10 - 5.7 =1.2 - 0.5 =10 - 4.6 = 1 + 9.7 =3 - 1.7 =10 + 5.9 =8 - 6.3 =14 + 4.6 =10.6 - 4.7 =10 - 5.2 =10.1 + 1.5 =8.6 +2.4 =9 - 6.4 =7 - 0.5 =7 - 6.4 =9.5 - 1.4 =8.4 - 2.7 =19 + 0.8 = 5 - 0.8 =2.9 + 1.6 = 4.3 - 2.4 = 5 + 7.7 =14.2 + 5.4 = 6.8 + 5.6 =12.2 - 1.3 =13.2 - 3.2 =18.2 - 0.3 = 6.5 + 0.8 =8.1 + 0.7 =11.2 - 6.7 = 2 + 0.4 =7 - 1.5 = 2.8 +4.2 = 6.2 + 6.1 =2 + 6.4 = 3 - 2.9 =17.2 - 1.5 =6 - 0.9 = 2.9 + 7.8 =13 + 2.1 =1 + 3.3 =11.8 + 7.2 =10 - 0.8 =4.6 +5.8 =8 - 3.8 =9 - 8.7 =练习范围：简单的小数加减法 题数：100月日姓名: 分秒成绩:18.8 - 3.6 = 2.2 - 1.5 = 5 - 1.3 = 11.1 - 3.3 =12 + 3.8 =8.3 - 4.3 = 2.3 + 2.5 =15.1 - 6.5 =11.7 + 1.5 = 1.1 + 0.6 = 4 - 0.4 = 4.5 + 3.8 = 11.7 + 5.4 =11.4 + 7.1 =14.3 + 1.4 = 11 + 0.1 = 6.9 + 2.3 = 5 - 0.6 =8 + 2.2 = 3.6 + 3.3 =9.3 - 6.7 = 5 - 3.4 = 2 + 4.4 = 6 + 7.8 = 13.9 + 4.3 = 6 + 2.1 =7.6 - 5.6 = 6 + 9.8 = 3.9 - 2.9 =18.8 - 5.2 = 11 + 1.4 =7 - 4.1 =12.8 + 7.2 =7.9 - 1.3 = 2 - 1.3 =9.3 - 3.6 =8.8 + 5.3 =7 - 0.1 =16.1 - 9.9 = 13.7 - 3.4 =11 + 5.9 =17.7 + 2.2 = 9 - 3.1 =17.5 + 1.3 =19.4 - 1.3 = 16 + 3.9 = 5.8 + 5.9 =0 + 2.8 = 9.5 + 4.5 =11.6 + 7.4 =12.7 - 5.3 = 8 - 5.4 =13 + 1.1 =9 - 1.9 = 10 - 7.3 =。