Answer :
The second number is reverse of the first number in each pair
32
52
43
45
I know this because if I do 23 minus 32 I get a negative number, however if I do 32 minus 23 I get a positive number meaning 32 is bigger
32
52
43
45
I know this because if I do 23 minus 32 I get a negative number, however if I do 32 minus 23 I get a positive number meaning 32 is bigger