Answer:
251,000.
Explanation:
We have been given a number 251,031.
First of all, we will find the place value of our given number as:
Ones: 1,
Tens: 3
Hundreds: 0
Thousands: 1
Ten thousands: 5
Hundred thousands: 2
We can see that the thousands digit is 1 and hundreds digit is 0. Since the value of hundreds digit is less than 5, so we will round down our number to nearest thousand that is
.
Therefore, our required number would be 251,000.