**Ordering Numbers Up to Billions: From Greatest to Smallest**

Hello 4th graders! Today, we’re going to learn how to order numbers up to billions, from greatest to smallest. Don’t worry—it’s a lot like comparing smaller numbers, but with more digits. Let’s take a look at an example to see how it works.

### Example: Ordering Numbers

Let’s say we have these four numbers:

- 6,401,083,051
- 6,401,046,015
- 6,401,072,286
- 6,401,037,720

Our job is to order them from the greatest to the smallest.

### Step 1: Compare the Billions Place

All four numbers start with 6 billion, so we move on to the next place value.

### Step 2: Compare the Millions Place

Look at the digits in the millions place:

- 6,401,083,051 has 083 million
- 6,401,046,015 has 046 million
- 6,401,072,286 has 072 million
- 6,401,037,720 has 037 million

Now we can start to order them! The largest number is 6,401,083,051 because 83 million is the biggest.

### Step 3: Compare the Remaining Numbers

Next, we compare the remaining three numbers. The next biggest is 6,401,072,286 because 72 million is greater than 46 million and 37 million.

After that, 6,401,046,015 comes next because 46 million is bigger than 37 million.

Finally, 6,401,037,720 is the smallest number because 37 million is the smallest of them all.

### Final Order

Now that we’ve compared all the numbers, the correct order from greatest to smallest is:

- 6,401,083,051
- 6,401,072,286
- 6,401,046,015
- 6,401,037,720

### Remember:

- Start with the leftmost digits (billions place) and compare.
- If they are the same, move to the next place value until you find a difference.
- Keep going until all numbers are ordered from greatest to smallest.

Now it’s your turn! Practice ordering numbers up to billions and see how quickly you can find the right order!

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