If 5-4=23, 6-16=32, 9-9=78 and 3-9=6 then 3-61=??

Question

If
5-4=23,
6-16=32,
9-9=78,
3-9=6
then
3-61=??

Answer 1

5 - 4   = 23 (5^2 - sqrt(4))
6 - 16  = 32 (6^2 - sqrt(16))
9 - 9   = 78 (9^2 - sqrt(9))
3 - 9   = 6  (3^2 - sqrt(9))
3 - 61  = 1.**********  (3^2 - sqrt(61))

Answer 2

Answer is 1.19
Method is sq(first no.) - sqrt(second no.) = ans
5-4 = 5^2 - sqrt(4) = 25-2 = 23
6-16 = 6^2 - sqrt(16) = 36-4 = 32
9-9 = 9^2 - sqrt(9) = 81-3 = 78
3-9 = 3^2 - sqrt(9) = 9-3 = 6
3-61 = 3^2 - sqrt(61) = 9-7.81 = 1.19