What is an expanded form of a number?

The expanded form of a number is when you break down a number based on the place value, showing the value of each digit in the number. The expanded form is usually written with the value of each digit and a plus sign in between each one. The opposite of expanded form is called standard form and it is the normal way we write numbers like 324. (More in How to use this concept?)

How to use this concept?

You can use the concept of expanded form of a number to break down any number (any number that has an end to it!). Here’s a simple example showing the expanded form (or in other words a break-down) of the number 324:

So, the expanded form of 324 is 300 + 20 + 4. As shown above, each digit in 324 is treated as either ones, or tens or hundreds etc. What’s more is that it doesn’t only have to stop at hundreds or ones, but it can go on to thousands or hundredths of a number like (13,124 or 34.124). You can repeat this same process for any number you like or given in a problem.