11 and 9
91 and 2
44
1 and 82 2 and 41
1 x 43, 43 x 1
1 and 16 2 and 8 4 and 4
It is 99. 99*99 = 9801
For instance 27 and 4.
91 and 2
44
-78
4 and 27
17 times 2 !
The numbers are: 4 -sq rt of 13 and 4 +sq rt of 13
-52
1 and 82 2 and 41
1 x 43, 43 x 1
-7