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In this worksheet, we will learn how to round a decimal number to the nearest whole number.
Method
To round a decimal to the nearest whole number, check the digit in the tenths column.
If the tenths digit is 5 or more, round UP.
If the tenths digit is 4 or less, round DOWN.
Examples
19.742 is between the whole numbers 19 and 20.
The 7 tenths tell us to round UP to 20.
19.742 rounds up to 20.
19.342 is between the whole numbers 19 and 20.
The 3 tenths tell us to round DOWN to 19.
19.342 rounds down to 19.
