0.99999: Round off the (terminating) decimal number to the nearest ten (2 whole places)

0.99999 rounded to the nearest ten (2 whole 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.

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.

Counting by tens (2 whole places at a time), our number is sitting on the axis of numbers between two consecutive neighboring numbers:
0 < 0.99999 < 10


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 + 10) ÷ 2 = 5


Our number, 0.99999, is smaller than 5, so it is closer to the smaller neighbor: 0


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


Rule of thumb:

Note: Because the number does not have enough whole digits, we add zeros to its left, up to the rounding position place. The number value is not changing.


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 0: 00.99999

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

The digit is 0: 00.99999 ≈ 0 rounded to the nearest ten (2 whole places).


Or, even simpler.
In any number rounded to whole places, if the digit to the right of the 'rounding digit' is less than 5 (0 to 4), then leave the 'rounding digit' as it is and replace all the digits to the right of it with zeros:

00.99999 ≈ 0 rounded to the nearest ten (2 whole 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. 00.99999 is not halfway between its neighbors.


0.99999 ≈ 0


- 0.99999 ≈ 0


rounded to the nearest ten (2 whole places)


Number Round Half Down:

Numbers that are halfway between two neighbors are rounded off to the smaller neighbor. 00.99999 is not halfway between its neighbors.


0.99999 ≈ 0


- 0.99999 ≈ 0


rounded to the nearest ten (2 whole 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. 00.99999 is not halfway between its neighbors.


0.99999 ≈ 0


- 0.99999 ≈ 0


rounded to the nearest ten (2 whole places)


Number Round Half Towards Zero:

Numbers that are halfway between two neighbors are rounded off to the neighbor which is closer towards zero. 00.99999 is not halfway between its neighbors.


0.99999 ≈ 0


- 0.99999 ≈ 0


rounded to the nearest ten (2 whole 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. 00.99999 is not halfway between its neighbors.


0.99999 ≈ 0


- 0.99999 ≈ 0


rounded to the nearest ten (2 whole 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. 00.99999 is not halfway between its neighbors.


0.99999 ≈ 0


- 0.99999 ≈ 0


rounded to the nearest ten (2 whole places)


Number Round Ceiling:

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


0.99999 ≈ 10


- 0.99999 ≈ 0


rounded to the nearest ten (2 whole places)


Number Round Floor:

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


0.99999 ≈ 0


- 0.99999 ≈ - 10


rounded to the nearest ten (2 whole places)


More operations like this:

Round off the number 1.00001. Round off the (terminating) decimal number to the nearest ten (2 whole 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

The latest 13 operations with rounded off numbers:

Round off 0.99999 to the nearest ten (2 whole places) Jul 23 11:09 UTC (GMT)
Round off 2.06666667978666 to the nearest ten (2 whole places) Jul 23 11:09 UTC (GMT)
Round off 2.06666667978666 to the nearest ten (2 whole places) Jul 23 11:09 UTC (GMT)
Round off 14,270 to the nearest thousand (4 whole places) Jul 23 11:09 UTC (GMT)
Round off 182,335 to the nearest hundred thousand (6 whole places) Jul 23 11:08 UTC (GMT)
Round off 855.7 to the nearest one (1 whole place) Jul 23 11:08 UTC (GMT)
Round off 5,764,963 to the nearest hundred (3 whole places) Jul 23 11:08 UTC (GMT)
Round off 1.06798381898993 to the nearest ten (2 whole places) Jul 23 11:08 UTC (GMT)
Round off 1.06798381898993 to the nearest ten (2 whole places) Jul 23 11:08 UTC (GMT)
Round off 354,354 to the nearest ten thousand (5 whole places) Jul 23 11:08 UTC (GMT)
Round off 102.77777779 to the nearest tenth (1 decimal place) Jul 23 11:08 UTC (GMT)
Round off 2.06666668888686 to the nearest ten (2 whole places) Jul 23 11:08 UTC (GMT)
Round off 8.1 to the nearest tenth (1 decimal place) Jul 23 11:08 UTC (GMT)
All the operations with the numbers rounded off by users...

How to round off numbers?

1. Rounding off numbers: definition.

2. How to round off a number to whole places?

3. How to round off a number to decimal places?

4. Mathematical explanation of the rules used in numbers rounding.

5. Special cases. Examples.