To round 810 to the nearest hundreds, we look at the digit in the hundreds place, which is 8. Since the digit to the right of the hundreds place is 1, which is less than 5, we do not need to round up. Therefore, 810 rounded to the nearest hundreds is 800.
Oh, dude, 810 rounded to the nearest hundreds is 800. It's like if you're at a party with 810 people, and you're just like, "Let's round this off to 800, I can't handle all these extra 10 people, man." So yeah, 810 becomes 800 when you're playing the rounding game.