Description

TenMarks teaches you about place value and place value charts through thousands.

Transcript

In this video lesson, let’s learn about place value and charts. We are given two problems. The first one wants us to write the following in a place value chart. Well first, let’s learn what is place value. When we look at a digit, the digit could be 4129 or what is represented here, the place value is the value of a digit and this depends on the position it has in the number. Here is how we do this. We can put place value in a table. You get thousands, hundreds, tens, and ones. These are the four places. Then the place value of a thousand is thousand, the place value of a hundred is a hundred, tens is ten and ones is one. So this is called a place value chart. If we look at problem A, we can see that on the right side, we got 1, 2, 3, 4, 5, 6 individual cubes. Since that is on the rightmost area, I can write the value or the count here. Next, I see a bar of 10, there’s only one bar of 10 so I will put one because remember, the value of this is 10 and there’s only one of these so we put it here. The value of these is one and there are six of those. The value of these is 100 cubes each. There are two of them so I put the number here. So what do we find? This is the place value chart but the value of this digit is 216, that’s what’s represented here. Another way to say this is that the place value of the digit 2 is hundreds and the value of this digit is 200 because it’s 216. Similarly, the place value of 1 is tens and the actual value of the digit equals 10 because there’s only one of them. And similarly, the place value of 6 as a digit is 1 and the actual value of the digit equals 6. Let’s try the next problem. The next problem is 4129. So again, I can write the place value table. We can go thousands, hundreds, tens and ones. The value of this is one, ten, hundred and a thousand of course. And if I look at this number, what do we do? We take the rightmost digit, the rightmost digit is 9, I place it here. The next digit to that is 2, I placed it there, next to that is 1 and next to that is 4. 4129, that’s the digits. Again, if I want to write this down as a placed value statements, the place value of 4 is thousands and the actual value of the digit is 4 x 1000 or 4000. Similarly, the place value of 1 is 100 and the value is 1 x 100 is 100. The place value of the digit 2 is 10 and the actual value of the digit is 20 and the place value of 9 is one and the actual value is 9, 4129.