0.057: Round off the (terminating) decimal number to the nearest hundredth (2 decimal places)

0.057 rounded to the nearest hundredth (2 decimal places) = ?

How is the number rounded off? Half Up, Half Down, Half Away From Zero, Half Towards Zero, Half to Even, Half to Odd. To Ceiling, To Floor.

What does it mean to round off a number?

Rounding a number means replacing it with a simpler, shorter approximation, while keeping its value close to the initial one. The rounded number will be less accurate, but easier to work with.


How is the number rounded off? Explanation.

Our number is sitting on the axis of numbers between two 2 decimal place consecutive neighboring numbers:
0.05 < 0.057 < 0.06


Our number is to be rounded off to one of these neighbors, the closer one.


The middle of this interval, the number that is equally close to the either neighbor, is: (0.05 + 0.06) ÷ 2 = 0.055


Our number, 0.057, is larger than 0.055, so it is closer to the larger neighbor: 0.06


Except for 'To Ceiling, To Floor', the rounded off number (both the positive and the negative) will be equal only to this larger neighbor.


Rule of thumb:

Rounding digit. Let's call the digit of the position place that is intended to round off to as the 'rounding digit'. The digit is 5: 0.057


In a positive number, if the digit to the right of the 'rounding digit' is larger than 5, then the number is rounded to the larger neighbor.

The digit is 7: 0.057 ≈ 0.06 rounded to the nearest hundredth (2 decimal places).


Or, even simpler.
In any number rounded to decimal places, if the digit to the right of the 'rounding digit' is 5 (but it is not the last non-zero digit to the right) or more than 5, ie. 6, 7, 8 or 9, then increase the 'rounding digit' by 1 and drop all the digits to the right of it, 5 + 1 = 6:

0.057 ≈ 0.06 rounded to the nearest hundredth (2 decimal places)


Below we round off both the positive and the negative:

Half Up, Half Down, Half Away From Zero, Half Towards Zero, Half to Even, Half to Odd. To Ceiling, To Floor.


Number Round Half Up:

Numbers that are halfway between two neighbors are rounded off to the larger neighbor. 0.057 is not halfway between its neighbors.


0.057 ≈ 0.06


- 0.057 ≈ - 0.06


rounded to the nearest hundredth (2 decimal places)


Number Round Half Down:

Numbers that are halfway between two neighbors are rounded off to the smaller neighbor. 0.057 is not halfway between its neighbors.


0.057 ≈ 0.06


- 0.057 ≈ - 0.06


rounded to the nearest hundredth (2 decimal places)


Number Round Half Away From Zero:

Numbers that are halfway between two neighbors are rounded off to the neighbor which is farther away from zero. 0.057 is not halfway between its neighbors.


0.057 ≈ 0.06


- 0.057 ≈ - 0.06


rounded to the nearest hundredth (2 decimal places)


Number Round Half Towards Zero:

Numbers that are halfway between two neighbors are rounded off to the neighbor which is closer towards zero. 0.057 is not halfway between its neighbors.


0.057 ≈ 0.06


- 0.057 ≈ - 0.06


rounded to the nearest hundredth (2 decimal places)


Number Round Half to Even:
(Gaussian Rounding or Banker's Rounding)

Numbers that are halfway between two neighbors are rounded off to the neighbor with an even rounding digit. 0.057 is not halfway between its neighbors.


0.057 ≈ 0.06


- 0.057 ≈ - 0.06


rounded to the nearest hundredth (2 decimal places)


Number Round Half to Odd:
(Gaussian Rounding or Banker's Rounding)

Numbers that are halfway between two neighbors are rounded off to the neighbor with an odd rounding digit. 0.057 is not halfway between its neighbors.


0.057 ≈ 0.06


- 0.057 ≈ - 0.06


rounded to the nearest hundredth (2 decimal places)


Number Round Ceiling:

All the numbers that are between two neighbors are always rounded off to the larger neighbor.


0.057 ≈ 0.06


- 0.057 ≈ - 0.05


rounded to the nearest hundredth (2 decimal places)


Number Round Floor:

All the numbers that are between two neighbors are always rounded off to the smaller neighbor.


0.057 ≈ 0.05


- 0.057 ≈ - 0.06


rounded to the nearest hundredth (2 decimal places)


More operations like this:

Round off the number 0.058. Round off the (terminating) decimal number to the nearest hundredth (2 decimal places)


All Numbers Are Rounded Off: Half Up, Half Down, Half Away From Zero, Half Towards Zero, Half to Even, Half to Odd. To Ceiling, To Floor. Rounding Off Integers, Terminating Decimals, Pure or Mixed Repeating (Recurring) Decimal Numbers

Round off to whole places or decimal places

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