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从0.1.2.3.4.5.6中选出三个数(可重复).它们的和是6 .一共有几组

来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/10/06 22:48:28
从0.1.2.3.4.5.6中选出三个数(可重复).它们的和是6 .一共有几组
一共28组
1:0+0+6 = 6
2:0+1+5 = 6
3:0+2+4 = 6
4:0+3+3 = 6
5:0+4+2 = 6
6:0+5+1 = 6
7:0+6+0 = 6
8:1+0+5 = 6
9:1+1+4 = 6
10:1+2+3 = 6
11:1+3+2 = 6
12:1+4+1 = 6
13:1+5+0 = 6
14:2+0+4 = 6
15:2+1+3 = 6
16:2+2+2 = 6
17:2+3+1 = 6
18:2+4+0 = 6
19:3+0+3 = 6
20:3+1+2 = 6
21:3+2+1 = 6
22:3+3+0 = 6
23:4+0+2 = 6
24:4+1+1 = 6
25:4+2+0 = 6
26:5+0+1 = 6
27:5+1+0 = 6
28:6+0+0 = 6