# Comparing Three Digit Numbers

First compare the hundreds digit. If the hundreds digits are same, then compare the tens digit. If tens digits are same then compare the ones digits.

For example: Let's compare 324 and 380.

Notice that both the numbers have three digits.

324 ____ 380

We start comparing from the hundreds digits.

Hundreds |
Tens |
Ones |

3 |
2 | 4 |

Hundreds |
Tens |
Ones |

3 |
8 | 0 |

Observe that, in both the numbers hundreds digit is three.

Now, compare the tens digits.

Hundreds |
Tens |
Ones |

3 | 2 |
4 |

Hundreds |
Tens |
Ones |

3 | 8 |
0 |

The tens digit in 324 is 2 and in 380 is 8.

Now, 2 is less than 8.

So, 324 **is less than** 380.

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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.