Round 81.85 to the Nearest Whole Number

This is how to round 81.85 to the nearest whole number. In other words, this is how to round 81.85 to the nearest integer.

81.85 has two parts. The integer part to the left of the decimal point and the fractional part to the right of the decimal point:

Integer Part: 81
Fractional Part: 85

Our goal is to round it so we only have an integer part using the following rules:

If the first digit in the fractional part of 81.85 is less than 5 then we simply remove the fractional part to get the answer.

If the first digit in the fractional part of 81.85 is 5 or above, then we add 1 to the integer part and remove the fractional part to get the answer.

The first digit in the fractional part is 8 and 8 is 5 or above. Therefore, we add 1 to the integer part and remove the fractional part to get 81.85 rounded to the nearest whole number as:

82

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