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example 4: Round off 4962 to the nearest hundreds.
Solution: th H T O th H T O
4 9 6 2 5 0 0 0 Nearer to 5000 than 4900
4950
6 > 5 4900 4962 5000
4962 5000
4962 rounded off to the nearest hundreds is 5000.
Fast Check
Select the correct round off to the nearest 100 for the following facts. Cross-Curricular Learning
1. The height of Mount Everest is 8,848 m. 8,900 m or 8800 m
2. The length of the river Ganges is 2,525 km. 2,500 km or 2,530 km
3. The diameter of the Earth is 12,742 km. 12,700 km or 12,740 km
4. Light travels 2,99,792 km in one second. 2,99,790 km or 2,99,800 km
rounding off to the nearest thousands
When we round off a number to
the nearest thousands, we look for Challenge Question Critical Thinking
the digit in the hundreds place. A 6-digit number becomes 3,82,000
If the digit in the hundreds when rounded to the nearest thousands, but
place is less than 5, keep the becomes 3,81,900 when rounded to the nearest
thousands place digit as it is hundreds. What could the number(s) be?
and replace the hundreds, tens and ones place digits with 0.
If the digit in the hundreds place is 5 or greater than 5, increase the thousands
place digit by 1 and replace the hundreds, tens and ones place digits with 0.
example 5: Round off 24382 to the nearest thousands.
Solution: tth th H T O tth th H T O Nearer to 24000 than 25000
2 4 3 8 2 2 4 0 0 0
24000 24382 25000
3 < 5
24382 24000
24382 rounded off to the nearest thousands is 24000.
example 6: Round off 96704 to the nearest thousands.
Solution: tth th H T O tth th H T O Nearer to 97000 than 96000
9 6 7 0 4 9 7 0 0 0
96000 96704 97000
7 > 5
96704 97000
96704 rounded off to the nearest thousands is 97000.
Mathematics-4 23
