和值21的号码组合如下:
6 + 7 + 8 = 21
5 + 7 + 9 = 21
4 + 8 + 9 = 21
如果允许使用重复的个位数,则还有以下组合:
2 + 0 + 0 + 2 + 1 = 21
1 + 0 + 0 + 1 + 1 + 1 = 21
1 + 1 + 1 + 1 + 1 + 1 = 21
1 + 2 + 1 + 1 + 1 + 1 = 21
1 + 3 + 1 + 1 + 1 + 1 = 21
1 + 4 + 1 + 1 + 1 + 1 = 21
1 + 5 + 1 + 1 + 1 + 1 = 21
1 + 6 + 1 + 1 + 1 + 1 = 21
1 + 7 + 1 + 1 + 1 + 1 = 21
1 + 8 + 1 + 1 + 1 + 1 = 21
1 + 9 + 1 + 1 + 1 + 1 = 21
1 + 10 + 1 + 1 + 1 + 1 = 21
请注意,这些号码组合是基于特定的数字游戏或彩票系统,例如福彩3D。您可以根据具体的游戏规则选择合适的号码