To round a number to a particular digit, look at the digit immediately to the right of your target, in this case, the tens place. If that digit is 4 or lower, zero it and everything to the right of it out. If that digit is 5 or higher, increase the target digit by one and zero everything to the right of it out. If your target digit is a 9, increasing it will turn it to zero and increase the digit to the left of it by one.
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.
555
-12
7649
Yes, it's just like 115 to the nearest hundred is 100. If the last two digits is less than 50 you have to round down. -15 to the nearest hundred is also 0. -95 to the nearest hundred is -100. -115 to the nearest hundred is -100. I'm not sure what -50 to the nearest hundred is, though!
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.
5600
A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above. 8400 is the answer
Remember, we don't necessarily round up or down, but to the hundred that is closest to 2153. When rounding a number like 2153 to the nearest hundred, we use the following rules: a) We round the number to the nearest hundred if the last two digits of the number are 50 or more.
First, 54 rounded to the nearest hundred is: 100.We round the number up to the nearest hundred if the last two digits in the number are 50 or above.
555
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.
555
-12
To round to the nearest hundred in 8143 you look to the last three digits 143 and if the number are less than 150 than you round down if the numbers are above 150 you round up so the answer to 8143 would be 8100.
278879 rounded to the nearest hundred - is 278900. The last two digits (79) are greater than 50 so you round up.
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.