The nearest whole number is 1, so that could be the best number.
9 is the best estimate whole number
which is the best approximation of
rational
The best estimate for 60.94 would be 61. This is because when rounding a number to the nearest whole number, if the decimal portion is 0.5 or greater, the whole number is rounded up. In this case, 0.94 is closer to 1 than to 0, so rounding up to 61 would be the most accurate estimate.
JLS are the best band. They will never be forgoten. They have the best album and they have the most number of fans in the whole entire world.
Well, darling, if you want to round 69 to the nearest whole number, you'll end up with 69. Why? Because 69 is already a whole number! So, no need to change a thing, just keep on living your best life with that 69 intact.
Which subset of the rational numbers best describes the dimensions of a rectangle
Any time you are comparing portions of a whole, and all the portions add up to 100% of the whole, a pie chart is the best way to go.
An atom's atomic number is best described as the number of protons in its nucleus, which determines its chemical element. It is written as a whole number above the chemical symbol of an element on the periodic table.
For smaller numbers, this is best done by trial and error.
What's "best" depends on what you are going to use this for. You can take a calculator and do the exact calculation. Or you can round the numbers in a way that makes it easy to do the calculations in your head.