If the digit to the right of the place you are rounding to is 4 or less, leave the number in the place you are rounding to the same and change all digits to the right of it to zeros.
If the digit to the right of the place you are rounding to is 5 or more, round the number in the place you are rounding to to the next higher digit and change all the digits to the right of it to zeros.
To round 4.5 to the nearest whole number, look at the digit in the tenth's place. Since it is a 5, round the 4 to a 5. Your answer is 5, or you could write it as 5.0.
If you're rounding to decimal places, you can leave the zeros to the right off in your answer. For example, if you're rounding 6.849 to hundredths place, you could write the answer as 6.85 instead of 6.850 because the zeros are not needed.
Chat with our AI personalities
50
43
46. To "round off" a number, look at the previous digit. Go up one number if this digit is 5 or greater; go down one if 4 or less. So to round 45.6 to the nearest whole number, we look at the ".6" part. This is greater than five, so we increase the number "45" by one to "46".
45 is the smallest number that rounds to 50
The hundred that's nearest to 45 is zero. 45 is only 45 away from that one. The next one ... 100 ... is 55 away.