Can you please tell me what you get when you subtract 1000 miles from 231.05 miles. Thanks!

what is 231.05 - 1000 ?

You have to decide if a negative distance has a meaning within the context of your question or problem.

Well the person in the word problem wants to run a total of 1000 miles in a year and within a 2 month process she ran a total of 231.05, so now they are asking how many more miles she has to run in the year to reach her goal of 1000 miles. So I think I should subtract 231.05 miles from 1000 miles.

then you would subtract 231.5 FROM 1000,

not "..subtract 1000 miles from 231.05 miles" the way you stated it.

that is
type in 1000 - 231.5 =

So I would get 768.50 if I did it on a caluclator, but on paper, if i put 1000 on top, how do I align the 231.50 ?

write it this way,

1000.0
-231.5

make sure the decimal place lines up in the same column

To subtract 1000 miles from 231.05 miles, you simply need to subtract the two numbers. Here's how you can do it:

Step 1: Write down the numbers vertically, aligning the decimal points:
231.05
- 1000.00

Step 2: Start with the rightmost column (the ones place).
Subtract 0 from 5: 5.
Write down the result below the line.

Step 3: Move to the next column (the tenths place), and subtract.
Subtract 0 from 0: 0.
Write down the result below the line.

Step 4: Now, subtract the thousands place column.
Subtract 1 from 1: 0.
Write down the result below the line.

Step 5: Lastly, subtract the whole numbers column.
Subtract 2 from 2: 0.
Write down the result below the line.

Step 6: The final result is 0.05.

Therefore, when you subtract 1000 miles from 231.05 miles, you get 0.05 miles.