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Lesson 5: Round whole numbers

# Rounding whole numbers to nearest hundred

Sal rounds 24,259 to the nearest hundred. Created by Sal Khan and Monterey Institute for Technology and Education.

## Want to join the conversation?

• How Do I Round Off To The Nearest Ten thousand. for ex. 137000 how can i rouund of to the nearest ten thousands...
• Round up to 140,000
• what if you were rounding a negative? Would it be reverse?
• Nope... treat the negative number in the same way that you treat a positive number.
For example
-5652 rounded on hundred place = -5700
-5643 rounded on hundreds place = -5600
Hope this helps.
• vote if u like dogs
• i love dogs u monster
(1 vote)
• what is 10,000 rounded to the nerest 10,000?
• that would be 10,000
• why does 5 round up i think it us supposed do round down
• The reason 5 rounds up is because 0, 1, 2, 3, and 4 are part of the "lower half" which round down and the next greater place value is not influenced. 5, 6, 7, 8, and 9 are part of the "upper half" which round up and the next greater place value is increased by 1.

[R]
• what if you had to round 2999 to the nearest hundred
• If you underline the first 9, the second 9 tells you to round up, so rounding up to a 10 means 20+10 = 30, so 3000. Or if you round up the 9 to a 0, you have to add one to the next digit (2+1).
• can i have 25 votes for sum
• whats yo dc
• how do you go on rounding
• So, if you were to round the number 17 to the nearest 10th what would it be?
Would it be 10 or 20? Well, we look at the number to the right to figure that out.
- If the number is 5, 6, 7, 8, or 9, then you would round the number to 20 and say: "it is about 20".
- If the number is 1, 2, 3, or 4, then you would round the number to 10 and say: "it is about 10".
So, in this case the number to the right is 7... that would mean we would round the number to 20.

Let's look at another example... if you were to round 132 to the nearest 100th what would it be?
100 or 200? Again the numbers to the right will help us understand.
- If the number is 50 or higher (51, 52, 53... to 99) it would be rounded to 200.
- If the number is 49 or lower (48, 47, 46... to 1) it would be rounded to 100.
So, in this case the numbers to the left are 32... that would mean we would round it 100.

Hope this helps you maybe understand this better...