When we look at rounding a number, we want to look at the number just to its right. All of the numbers to the left will remain the same. So right now, we have the first two digits, 21. The hundreds can be either an 8 or a 9 depending on whats in the tens position. If the number in the tens position is 5 or greater we round up to 9. If it's lower, we round down to 8. The number in the tens position is an 8, so we round up. We now have 3 digits, 21,9. We now just fill in the remaining places with zeroes, so we end up with 21,900.
2130000021300000
900
700
21
21.3 rounded to the nearest whole number = 21
21 rounded to the nearest hundred is 0.
Rounded to the nearest hundred, 21 is approximately equal to 0.
0
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.
The answer depends on the degree of rounding. To the nearest whole number, it is 21. To the nearest hundred (or larger), it is 0.
2130000021300000
900
21 over 40 rounded to the nearest fourth is 0.5
20.954 rounded to the nearest cent is 21 cents.
700
21
You are either 669 or 687 .