Step by step
The question
Question: put 45,300, 45,030, 54,300 in order, from greatest to least.
1 Line up the places
We line up the ones under the ones, the tens under the tens, and so on.
2 Compare from the left
Look at the ten thousands: 5 is more than 4.
So 54,300 is greater than 45,300.
45,300 and 45,030 are the same in the first 2 places.
Look at the hundreds: 3 is more than 0.
So 45,300 is greater than 45,030.
3 Write them in order
From greatest to least: 54,300 > 45,300 > 45,030.
4 Check
On a number line, smaller numbers are to the left.
Left to right: 45,030, 45,300, 54,300.
The same order.
Yes!
It works.
Let's look back.
First: line up the places.
Then: compare from the left.
Then: write them in order.
Last: check.