一年级10以内分成

《一年级10以内分成》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、23456789101112131415161718192122232425262728313233343536374142434445465152535455616263647172738182912                                      读作：2 可以分成1和1，1 和1 合起来就是21  12  3          3            读作：3可以分成1 和2 ，1 和2 合起来就是3                           ／＼       ／＼                3 可以分成2

2、 和1 ，1 和2 合起来就是31          2       2   1＼／       ＼／3          3  4           4          4      读作：4 可以分成1 和3 ，1 和3 合起来就是4／＼        ／＼       ／＼          4 可以分成2 和2 ，2 和2 合起来就是41         3       2   2      3   1         4 可以分成3 和1 ，3 和1 合起来就是4 ＼／        ＼／       ＼／4            4   

3、        4  5          5          5         5         读法同上依次类推／＼       ／＼       ／＼      ／＼ 1         4      2   3      3   2     4   1＼／       ＼／       ＼／      ＼／ 5          5          5         5  6          6          6         6         6 ／＼       ／＼      ／＼       ／＼      ／＼1  

4、      5      2   4     3   3      4   2     5   1＼／       ＼／      ＼／       ＼／      ＼／ 6          6         6          6         6   7          7          7          7        7        7／＼       ／＼       ／＼       ／＼     ／＼      ／＼1        6      2   5      3   4      4   3    5   2

5、     6   1＼／       ＼／       ＼／       ＼／     ＼／      ＼／7          7          7          7        7         7    8          8          8          8        8         8         8／＼       ／＼       ／＼       ／＼     ／＼      ／＼      ／＼1        7      2   6      3   5      4   4    5   3  

6、   6   2     7   1＼／       ＼／       ＼／       ＼／     ＼／      ＼／      ＼／ 8          8          8          8        8        8         8   9          9          9          9         9       9       9        9／＼       ／＼       ／＼       ／＼      ／＼    ／＼     ／＼     ／＼1        8      2 

7、  7      3   6      4   5     5   4   6   3    7  2    8   1＼／       ＼／       ＼／       ＼／      ＼／    ＼／     ＼／     ＼／9          9          9          9         9       9        9       9  10         10        10         10        10       10       10／＼       ／＼      ／＼       ／＼  

8、    ／＼      ／＼      ／＼1        9      2