My math book has this statement:

Question

"Describe how to use a Ten-Thousand Square to round numbers to the nearest 1000?"

I don't really understand how to answer it.

Answer 1

Is this the answer?:

If the number in the thousands place is greater than 5, you round up. If the number is less than 5, you round down.

Answer 2

10,000 squared (10,000^2) is 10,000 times 10,000. Since the answer has only zeros, no rounding is needed.

Round up if the value is 5 or greater.

I hope this helps. Thanks for asking.