-5 is not a whole number. it is an integer. whole number starts from 0 to infinity.
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If a number has no decimal places it is a whole number, so 5 is a whole number but 1.566 is not.
A whole number is a number that is not a fraction or decimal, and it does not include negative numbers or zero. The whole number of 5 is simply 5. It is a positive integer that can be represented on the number line as a point 5 units to the right of zero.
Rounded to the nearest whole number it is 5
It is 5 when rounded to the nearest whole number.
When rounding a number to the nearest whole number, you look at the decimal place immediately to the right of the whole number. In this case, 5.1 has a tenths place value of 1. Since 1 is less than 5, the whole number remains 5. Therefore, when rounding 5.1 to the nearest whole number, it remains 5.