If I think your asking the question how I think your asking it, then any number 5 and above you round up. If its below 5 you round down. :-)
5
Look at the digit after the ones digit - the tenths digit; if it is 5 or more round up, otherwise it is less than 5 so round down. The tenths digit (the one after the decimal point) is a 9 so round up: 986.91 → 987 to the nearest whole number.
To round a number look at the digit to the right of the place you are rounding to. If the digit is 5 or more, round the number to the left to the next higher number. If the digit to the right is less than 5, leave the digit the same. Change all digits to the right of the place you are rounding to to zeros. 1,2848 rounded to the nearest tenth is 1.3
To round to the nearest whole number the tenths digit (the one after the decimal point) is the deciding digit whether to round up or down - if it is less than 5 round down, otherwise round up. The tenths digit of 9.13 is 1 which is less than 5 so round down 9.13 → 9 to the nearest whole number.
Sometimes it is advantageous to express a value in round numbers. To round to a particular place, look at the digit immediately to the right of the one you want to round to, in this case, the second number. If that digit is 4, 3, 2, 1 or 0, zero it and everything to the right of it out. If that digit is 5, 6, 7, 8 or 9, increase your target digit by one and zero everything to the right of it out. If your target digit is 9, it will become a zero and increase the digit to the left of it by one.
The digit in the hundreds is a 2, so we round the number down to get 3000 as the answer.
The digit immediately to the right of your target.
The digit immediately to the right of the one you are rounding to.
The digit immediately to the right of your target.
If I think your asking the question how I think your asking it, then any number 5 and above you round up. If its below 5 you round down. :-)
When rounding to a specific place, take a look at the digit immediately to the right of the target. If that digit is 4 or less, zero everything to the right of the target out. If that digit is 5 through 9, increase the target by one and zero everything to the right of it out. If the target is a 9, increasing it will turn it to zero and increase the digit to the left of the target by one.
if you have a number with a five as the last digit you round up.
The key to rounding any number to the nearest ten does not use the decimals at all. In fact, you only need to check the digit in the ones place. If the number in the ones digit is below 4, then round down. If the number in the ones digit is 5 or larger, round up. Some Examples: 563 ---> 560 - The ones digit is a three, you round down 27 ---> 30 - The ones digit is above five, you round up 145 ---> 150 - The ones digit is a five, you round up 890 ---> 890 - The ones digit is a zero, you do nothing because it is already a ten.
323.3
A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. So, a decimal number will always round to a decimal number.
999 - 1000
If the underlined digit in the number 677 is 6, you would round the whole number to 700. If the first 7 is underlined it would be 680.
There are certain rules to follow when rounding a decimal number. Put simply, if the last digit is less than 5, round the previous digit down. However, if it's 5 or more than you should round the previous digit up. So, if the number you are about to round is followed by 5, 6, 7, 8, 9 round the number up.