Let us round off these numbers to the nearest 100ġ. If that digit is 5, 6, 7, 8, or 9, you will round up to the next hundred.If that digit is 0, 1, 2, 3, or 4, you will round down to the previous hundred.When rounding off a number to the nearest hundred, look at the TENS DIGIT of the number. However, the numbers that lie between 750 and 799 are closer to 800 due to which they would be rounded up to 800. the numbers between 701 and 749 are closer to 700 as compared to 800. This is because the numbers that lie in red areas, i.e. Similarly, the numbers that lie in the blue areas will be rounded up to 800. The numbers that lie in the red areas will be rounded down to 700. Look for the digit at the hundred’s place. If the number at the hundred’s place is followed by 5, 6, 7, 8, or 9, the number is rounded up.Įxample – We want to round off 54897 to the nearest 100.ġ. It means that we wish to round off the last three digits of a number, i.e.
So, how do we decide how to round off a number to the nearest 100?īefore understanding the rules to round off a number, it is important to understand what does rounding off to 100 mean?
Rounding off can also be termed as a shortcut method.
The exact number of students in the school may be somewhere around 600 which, for convenience we have round off to 600. That does not necessarily mean that there are exactly 600 students in a school. For instance, we may say that there are around 600 students in a school. It helps us give approximate answers where exact values are not required. In order to ease our calculations, we often approximate the numbers to some extent.