Answer
Find out the 3.06 rounded to the nearest tenth .
To prove
As given
As the number given in the question be 3.06 .
Now by using the rounding off rules.
(1) Find the place value you want (the "rounding digit") and look at the digit just to the right of it.
(2) If that digit is greater than or equal to five, add one to the rounding digit and drop all digits to the right of it.
thus in 3.06 the digit next to 0 is 6 which is greater than the 5 .
Therefore the number becomes 3.1 ( rounded to the nearest tenth) .