Step by step
The question
Question: put 1,205, 1,250, 1,025 in order, from least to greatest.
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
1,250 and 1,205 are the same in the first 2 places.
Look at the tens: 5 is more than 0.
So 1,250 is greater than 1,205.
1,205 and 1,025 are the same in the first place.
Look at the hundreds: 2 is more than 0.
So 1,205 is greater than 1,025.
3 Write them in order
From least to greatest: 1,025 < 1,205 < 1,250.
4 Check
On a number line, smaller numbers are to the left.
Left to right: 1,025, 1,205, 1,250.
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.