It is already rounded to the nearest ten as 450
Oh, honey, that's an easy one. 450 rounded to the nearest ten is 450. Why? Because it already ends in a zero, so it's already as round as it's gonna get. Next question, please!
450
450
You do nothing. 450 is already rounded to the nearest ten.
450
450
As is. It is already rounded to the nearest tens place.
440
450
453
450
Oh, dude, you're hitting me with the big math questions, huh? Okay, so, like, when you round 450, you're looking at the digit right after the 5, which is 0. And since 0 is less than 5, you just leave the 5 as is. So, 450 rounded is still just 450. Easy peasy, right?
450