4+1= 4-2= 1+3= 2+2=
5-3= 2+3= 5-1= 3-1=
1+1= 5-2= 3+2= 5-4=
2+1= 4-3= 1+4= 4-1=
1 2 3 |
3 4 5 |
5 6 7 |
7 8 9 |
45 43 25 31 22
5 |
4 |
|
|
1 |
|
2 |
3 |
|
5 |
比,比多。
比多。( )
3+=
5-=