# Rounding

Recall the place value chart. The number 5234 can be written in the place value chart as follows:

Thousands |
Hundreds |
Tens |
Ones |

5 | 2 | 3 | 4 |

Steps for rounding numbers:

To round the number to a given place, locate the rounding digit (which is the digit at the place you are rounding to). Then, check the digit immediately to its right.

- If this digit is 5 or more, then add 1 to the rounding digit (this is called rounding up) and change all digits to its right to 0.

- If this digit is less than 5, then keep the rounding digit the same (this is called rounding down) and change all digits to its right to 0.

**For example: **To round the number 808 to the nearest ten, look at its ones place digit.

It is 8, which is greater than 5. So, we round up.

808 → 810

So, 808 rounded to the nearest ten is 810.

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### Help

The correct answer is

##### Remember :

The smallest number is the one that comes first while counting.

##### Solution :

To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.

21,27,23

21 is the smallest number.