What are the gaps in this sequence 25 36 64 81?

Answer 1

The gaps are 26, 27, 28, ... , 33, 34, 35 and

37, 38, 39, ... , 61, 62, 63 and

65, 66, 67, ... , 78, 79, 80.

Or,

30.25, 42.24, 49, 56.25, 72.25.

Cannot think of any other simple way to find gaps - that is, more than one number missing within the range of numbers.

Answer 2

49 96

Answer 3

56 92