Video Transcript
Find the value of the nine in the
number 192.
We’re given a three-digit number in
this question. And it’s made up of the digits one,
nine, and two. Now, we know that a digit’s
position in a number gives it its value. And in this question, we’re
thinking about the digit nine. It’s in the middle of our number,
isn’t it? But what’s its value? Let’s use a place value grid to
help us.
We know that three-digit numbers
are made up of hundreds, tens, and ones. Now, our number, which is made up
of a one and nine and a two, has a one in the hundreds place and nine in the tens
place and the digit two in the ones place. We could also use place value
equipment to model this number: one hundred, nine tens, and two ones.
Now, if we want to think about the
digit nine in our number, we need to think about the middle column, don’t we? The nine is worth nine tens. Now, what’s the value of this? 10, 20, 30, 40, 50, 60, 70, 80,
90. We read our number as 192. And because the digit nine is in
the tens place, we know that it has a value of 90.
