- 3 5
= 1 5
+ 1 8
= 1- 5 8
= 2+ 101
=3 5
+ 5 8
= 3 8
+ 121
= 127
- 7 8
= 3 8
+ 201
= 209
+ 4 9
= 2 9
- 2 9
= 0+ 1 9
= 312
+ 157
= 158
3 |
5 |
1 |
5 |
2 |
5 |