Understand Place Value in 2-digit Numbers

In this activity, we will be looking at the value of each digit in a 2-digit number. 

 

A 2-digit number is made up of tens and ones. 

Here we have 52.

52 is made up of the digits 5 and 2 but each digit has a different value. 

 

Let's put 52 into a place value chart:

 

Tens	Ones
5	2

 

The 5 is worth 5 tens which is the same as 5 x 10 = 50 

The 2 is worth 2 ones which is the same as 2 x 1 = 2 

 

So if we partition 52 we will get 50 + 2 

Reminder: the word partition means to split up! 

 

This can be written like this:

 

  

 

Another way we will look at the place value of numbers in this activity is like this:

 

  

 

Here we have 52 split into tens and ones. 

10 + 10 + 10 + 10 + 10 = 50 

1 + 1 = 2

50 + 2 = 52 

 

This can really help us to understand the value of each digit. 

 

Ok, shall we have a go at some questions about place value?

 

If you need to look back at this introduction, just click on the red help button on the screen.