The nearest hundred to 3500 is 3500 itself. When rounding to the nearest hundred, you look at the digit in the tens place. If it is 5 or greater, you round up; if it is less than 5, you round down. In this case, the digit in the tens place is 5, so you would round up to 3500.
3500
3500
3500
3500
It is 3500
3500
3500
3500
3500.
3500
3486 rounded off to the nearest hundred is 3500.
The answer is 3500.