The answer is 2 and 3
26 falls between 25 and 27.
58 falls between 57 and 59.
18 falls between 17 and 19.
35.9999999999 and 36.0000000001
The square root is between 5 and 6.
The square root of 73 is between 8 and 9.
5 and 6
They are; 8 and 9 but the square root of 68 is about 8.246211251
4 and 5 because the square root of 18 is about 4.242640687
-5 and -4 or 4 and 5
1
25 and 49.