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\\September 30, 2025 9:37 AM Bharat Arora P-9 Reader _________________________ Date: ___________________74
rounding off to the nearest tens
To round off a number to the nearest tens, we look at the digit in the ones place.
If the digit in the ones place is less than 5, keep the tens place digit as it is and
replace the ones place digit with 0.
If the digit in the ones place is 5 or greater than 5, increase the tens place digit
by 1 and replace the ones place digit with 0.
example 1: Round off 624 to the nearest tens.
Solution: H T O H T O Nearer to 620 than 630
6 2 4 6 2 0
620 624 630
4 < 5
624 620
624 rounded off to the nearest tens is 620.
example 2: Round off 3765 to the nearest tens.
Solution: th H T O th H T O Moving forward to 3770
3 7 6 5 3 7 7 0
3760 3765 3770
5 = 5
3765 3770 Be Aware
3765 rounded off to the nearest tens is 3770. If a number is exactly between two tens, it
is always rounded to the higher tens.
rounding off to the nearest Hundreds
When we round off a number to the nearest hundreds, we look for the digit in the
tens place.
If the digit in the tens place is less than 5, keep the hundreds place digit as it is
and replace the tens and ones place digits with 0.
If the digit in the tens place is 5 or greater than 5, increase the hundreds place
digit by 1 and replace the tens and ones place digits with 0.
example 3: Round off 8249 to the nearest hundreds.
Solution: Nearer to 8200 than 8300
th H T O th H T O
8 2 4 9 8 2 0 0
8200 8249 8300
4 < 5
8249 8200
8249 rounded off to the nearest hundreds is 8200.
22 Mathematics-4
