Answer:
513
Explanation:
To get the answer to this problem, all you have to do is subtract 487 from 1000.
1000 - 487 = 513
Now, we can switch the places of 487 and 513; meaning we subtract 513 from 1000.
⇆
1000 - 513 = 487
Does this answer the problem? Yes! 1000 - 513 does equal 487.
Hope this helps! Let me know if you have any other questions. :)