2022年人教版一年级下册数学知识点总结 .pdf

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1、最新可编辑word 文档人教版一年级数学下册知识点总结第一单元认识图形1、平面图形的拼组 区分正方形和长方形长方形的特点：相对的两条长边相等，相对的两条短边相等。正方形的特点：四条边 长度都相等。正方形（四条对称轴）长方形（两条对称轴）（2）常见拼组：两个完全相同的长方形可拼成正方形和长方形。两个完全相同的正方形可以拼成长方形。四个完全相同的小正方形，可拼成正方形和长方形。2、立体图形的拼组（1）区分正方体和长方体长方体：有 6 个面，相对的面相同。正方体：有 6 个面，每个面都相同，都是正方形。（2）常见拼组 两个完全一样的长方体，可以拼成长方体。八个完全一样的正方体可以拼成一个大的正方体。

2、当有好多个正方体重叠在一起的时候，不要忘数最底层或者最后面被遮掉的小正方体。最新可编辑word 文档文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9

3、Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 Z

4、F5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9

5、Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 Z

6、F5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9

7、Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 Z

8、F5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3最新可编辑word 文档第二单元20以内的退位减法1、方法：相加算减分解法过程：如：129=3 12 9=3 把 12 分解成 10 和 2 过程：想9+3=12 先算：10-9=1 则 12-9=3 10 2 再算：1+2=3 1 2、应用题：已知条件里知道

9、了其中一部分和另一部分，求总数，用加法计算。问题里常见的关键字：一共、共、总的、原有等。已知条件里知道了总数和其中一部分，求另一部分，用减法计算。问题里常见的关键字：还剩、还有、应找回等。第三单元分类与整理1、理解分类的含义，掌握分类计数的方法，学会自主分类，并会用简单的统计表呈现分类计数的结果。2、学会单一标准的分类和按不同标准的分类，特别是不同分类标准，分类结果也不一样。文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF

10、5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q

11、1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF

12、5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q

13、1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF

14、5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q

15、1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF

16、5V6Y2P3P3最新可编辑word 文档第四单元 100以内数的认识1、10个十是 100，读作一百。100 是由 10个十或 100个一组成，它是一个三位数。2、数数时，可以一个一个的数，也可以二个二个的数，五个五个的数，十个十个的数。3、从右边起，第一位是个位，第二位是十位，第三位是百位。百十个（右边）第三位第二位第一位4、读数和写数，都从高位起。当计数器上个位或十位一颗珠子都没有时，就写 0 占位。5、用计数器表示一个数时，计数器各数位上的珠子数和这个数的个位，十位，百位上的数字相对应。6、只有个位的数是一位数，如5、7、2；最大的一位数是9。有个位、十位的数是两位数，如32、20；最

17、小的两位数是10，最大的两位数是 99。有个位、十位、百位的数是三位数，如100。100 是最小的三位数。7、一个数，个位上是几，表示有几个一；十位上是几，表示有几个十。反之，这个数有几个一，个位上就是几；有几个十，十位上就是几。8、数的顺序百数图1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I

18、4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:

19、CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I

20、4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:

21、CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I

22、4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:

23、CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I

24、4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3最新可编辑word 文档举例：以 33 34 35为例：和 34 相邻的两个数是33 和35；33 和 35 中间的数是 34。比 34少 1 的数是 33，比 34多 1 的数是 35。34 前面的数是 33，后面的数是 35；35 比 34 多 1，33 比 34少 1。以 52为例：52 和 60 之间的数是：53、54、55、56、57、58、59；（即大于 52 小于 60的所有数）52 前面的五个数是：51、50、49、48、47；后面的五个数是：53、54、55、56、5

25、7。52 前面的第五个数是：47；后面的第五个数是：57。9、两位数比较大小，先看十位，十位上大的数就大，当十位相同时，就比个位，个位大的数就大。10、多得多、少得多、多一些、少一些的用法。两个数相差很大时就用多得多，少得多。相差很小时就用多一些，少一些。例如：37 6 34 相比较后，37和 6 相差很大，就说37比 6 多得多或 6 比 37 少得多。37和 34 相差很小，就说 37 比 34多一些或 34比 37 少一些。11、整十数加一位数及相应的减法如：30+2=32（想：3 个十和 2 个一组成的数是32。）32 2=30（想：32 里去掉 2 个一，剩下 3 个十）41 42

26、43 44 45 46 47 48 49 50 51 52 53 53 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:

27、CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I

28、4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:

29、CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I

30、4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:

31、CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I

32、4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3最新可编辑

33、word 文档口算方法：个位相加，十位不变；个位相减，十位不变。文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5

34、 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6

35、T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5

36、 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6

37、T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5

38、 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6

39、T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3最新可编辑word 文档第五单元认识人民币五、认识人民币1、1 元=10角（1 元钱可以换 10 个 1 角）1角=10分（1 角可以换 10 个 1分）1元=100分（1 元钱可以换 10 个 10分，即 100分）2、简单的计算：单位相同，才能相加减。也就是元和元，角和角，分和分单位都相同的

40、才能计算。课本 51 页。3、小数表示法。小数点左边是几表示几元，小数点右边第一位是几表示几角，第二位是几表示几分。写作几元几角几分时，是0 的可以不写出。左右元 .角分小数点第六单元100 以内的加法和减法1、100以内的加减法的口算，相同数位相加减，从个位算起，个位加减个位，十位加减十位。要算得即对又快，必须分清不进位，进位，不退位，退位。进位加法可用接数法计算。2、用竖式计算进位加法时：数位对齐，即个位对齐个位，十位对齐十位。从个位算起，个位满10向十位进 1。十位要加上个位进上来的1。如：24+8=32 十 个文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3

41、P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 H

42、Q5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3

43、P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 H

44、Q5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3

45、P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 H

46、Q5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3

47、P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3最新可编辑word 文档 2 4+1 8 3 2 3、用竖式计算退位减法时：数位对齐，即个位对齐个位，十位对齐十位。从个位算起，个位不够减，向十位退1，个位作 10，个位计算完成后，十位要减去 1。如：368=28 十 个.10 3 6 8 2 8 4、各类分解法（1）两位数加、减一位数。不进位：35 +2 =3 7 想：先算：5+2=7 30 5 再算：30+7=5 7 进位：35 +8 =43 35+8=43 想：先算：5+8=

48、13 想：先算：35+5=40 30 5 再算：30+13=43 5 3 再算：40+5=45 13 40 不退位：35 2 =3 3 文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5

49、V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1

50、L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5V6Y2P3P3文档编码:CY6T9Q1L8D5 HQ5M5C3I4E5 ZF5