40
6999999
213
3400 We round the number up to the nearest hundred if the last two digits in the number are 50 or above. We round the number down to the nearest hundred if the last two digits in the number are 49 or below. If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.
To round to the nearest hundred thousand, you consider the digit that is 5th from the right. If it is 5 or greater, you add one to the digit 6th from the right, carrying if need be, and then replace the last five digits with zeros. In conclusion, 1,760,000 rounded to the nearest hundred thousand would be 1,800,000.
642
27222722
2722
6999999
The number would be 2666. 6 is repeated 3 times. Rounded to the nearest hundred is 2700 and rounded to the nearest thousand is 3000.
900 When rounding to the nearest hundred, like we did with 850 above, we use the following rules: A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above. B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below. C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.
213
Remember, we did not necessarily round up or down, but to the hundred that is nearest to 321. First, 321 rounded to the nearest hundred is: 300 When rounding to the nearest hundred, like we did with 321 above, we use the following rules: A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above. B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below. C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.
3400 We round the number up to the nearest hundred if the last two digits in the number are 50 or above. We round the number down to the nearest hundred if the last two digits in the number are 49 or below. If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.
An Estimate is basically a guess. Rounding is when you have an answer and you shorten the answer to a given number of digits. eg $27482 would round to $27500 to the nearest hundred dollars.
900000
To round to the nearest 100,000, you drop the last five digits - i.e., replace them by zeros. If the leftmost digit is a 5, 6, 7, 8 or 9, you then add one to the first (rightmost) digit that you didn't drop. The same procedure applies to rounding in general; except for the number of digits dropped.
To round to the nearest hundred thousand, you consider the digit that is 5th from the right. If it is 5 or greater, you add one to the digit 6th from the right, carrying if need be, and then replace the last five digits with zeros. In conclusion, 1,760,000 rounded to the nearest hundred thousand would be 1,800,000.