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Lesson 1: Rounding to nearest 10 or 100

Rounding to nearest 10 and 100

Learn to round up to 4-digit numbers to the nearest ten and hundred. Created by Sal Khan.

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• What is 880 to the nearest ten
• If a number is already a multiple of 10, then rounding it to the nearest ten won't change the number. 880 is a multiple of 10 (88 * 10 = 880), therefore 880 rounded to the nearest 10 is 880.
• What the easiest way to Round?
• Note that 1, 2, 3, and 4 get rounded down(toward zero) and 5, 6, 7, 8 and 9 get rounded up(toward ten).
So change 1, 2, 3, and 4 to 0 and 5, 6, 7, 8 and 9 to 10.
Let's suppose that you have 8,346.
If you round 8,346 to the nearest ten, 6 becomes 10, so 8,346 becomes 8,350.
If you round 8,346 to the nearest hundreds, 4 becomes 0, so 8,346 becomes 8,300.
If you round 8,346 to the nearest thousands, 3 becomes 0, so 8,346 becomes 8,000.
• Why does any 5 round up?
• Because there has to be some number to be the lowest number for rounding up and in most problems it makes more sense to round up, so it makes sense to give rounding up the extra number.
• can you round decimals?
• Yes, decimals can also be rounded. For example, 5.76 rounded to the nearest tenth is 5.8 .
• How do you round 449 to the nearest hundred？
• If you are below 450 then it's 400 if it's higher than 450 it's 500
• Round 351,562 to nearest ten
• Is "62" closer to "60" or "70"?
This could be compared to, 'is "2" closer to "0" or "10"?'
You only will change the last one or two digits on a problem like this.
• What is 615 rounded to the nearest hundred??
• 615 rounded to the nearest hundred is 600.
• How to round to the nearest 100 if the number was 100 ..