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The question is based on a false premise: the opposite of a decimal is not a whole.
A decimal is simply a way of representing a number is such a way that the place value of each digit is ten times that of the digit to its right. Therefore 4 is a decimal, 2.75 is a decimal.
There are different ways of defining opposite. The additive opposites of the two numbers are -4 and -2.75 so one of them is a whole number, the other is not.
The multiplicative opposites are 0.25 and 0.3636... so neither of them are whole.
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The opposite of whole?
the opposite of whole is a half
What are the difference between a decimal and a whole number?
The difference is that all whole numbers are decimal numbers, but not all decimal numbers are whole numbers. For example a whole number such as 1 is a decimal number but a decimal number such as 1.5 is not a whole number.
What are two ways in which whole numbers and decimal numbers are different?
Whole numbers are a proper subset of decimal numbers. All whole numbers are decimal numbers but not all decimal numbers are whole numbers.
Can a decimal number be a whole number?
No. A whole number is a number with no fractional (decimal) part. Therefore a decimal number can not be a whole number. Another view: 35.0 is a whole number AND a decimal. The fact that a number is a decimal does not automatically require it to have a fractional part. Even 35 is a decimal number (without a decimal point).
What is 489334209 rounded the whole decimal?
I'm not sure what a whole decimal is. You could round to a whole number (489334209) or a decimal (489334209.0)
