# Compare 4-digit numbers

## Learning focus

Learn how to compare 4-digit numbers.

This lesson includes:

- a catch-up quiz
- a learning summary

# Quiz

To get started, let's see how well you know this topic already. Take the catch-up quiz below to find out.

# Learn

When comparing numbers, use the greater than (**>**), less than (**<**) or equal to (**=**) signs.

Look carefully at the digits in each place value column. Numbers can look very similar and use the same digits but in a slightly different order!

Comparing 4-digit numbers is exactly the same as comparing 3-digit numbers, but you also have a digit in the thousands column.

## Example 1

**Which symbol < or > should go in the gap?**

9732 __ 9723

Both numbers use the same digits. Look carefully at each place value column.

**9732**has 9 thousands, 7 hundreds, 3 tens and 2 ones.**9723**has 9 thousands, 7 hundreds, 2 tens and three ones.

Since both numbers have the same amount of thousands and hundreds, you have to look at the **tens** to decide which has a larger amount - 9732!

9732 > 9723

## Example 2

**Which is the second smallest number here?**

6278 | 6129 | 6452 | 6124 |

All numbers are in the 6 thousands, so you should look at the **hundreds** column to help you order them from smallest to largest.

Since two of them have the same amount of hundreds and tens, look at the **ones** to compare.

6124 | 6129 | 6278 | 6452 |

Now they are in ascending order, you can see that 6129 is the second smallest number in the list.

# Play

Play **Guardians: Defenders of Mathematica** to learn more and sharpen your skills on this topic.

# There's more to learn

Have a look at these other resources.