Oh, dude, rounding 21 to the nearest hundred? That's like asking me to find a unicorn in a haystack. But hey, technically speaking, when you round 21 to the nearest hundred, it stays as 21. It's like trying to make a penny into a dollar - just not gonna happen.
100
21 rounded to the nearest hundred is zero. -- The even hundred above 21 is 100. -- The even hundred below 21 is zero. -- 21 is closer to the lower one than it is to the higher one.
100
9000
884600
Rounded to the nearest hundred, 21 is approximately equal to 0.
853 rounded to the nearest 100: 900. 10853 rounded to the nearest 100: 10900.
100
100
0
555 rounded to the nearest 100 is 600.
97 rounded to the nearest hundred is 100. 97 rounded to the nearest ten is 100
100
100
21 rounded to the nearest hundred is zero. -- The even hundred above 21 is 100. -- The even hundred below 21 is zero. -- 21 is closer to the lower one than it is to the higher one.
100
9000