Q: Is negative 81 a whole number?

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It isn't. The square of any real number is positive. (negative 9)2 = positive 81. Did you mean negative (92) ? Well, 92 = 81, and the negative of that is negative 81.

You do nothing. A negative number is a whole number.

6 is a whole number -47.03 is a negative number -179 is a negative whole number

Yes, it is.

79 & 81, or any whole number from 1 to 79 with any whole number greater than 81.

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It isn't. The square of any real number is positive. (negative 9)2 = positive 81. Did you mean negative (92) ? Well, 92 = 81, and the negative of that is negative 81.

Whole Number : Set of counting numbers along with zero. i.e. W = {0,1,2,3...} Therefore, 81 is a whole number.

81/9 = 9

There is no whole number - 81/90 in its simplest form is 9/10 !

You do nothing. A negative number is a whole number.

6 is a whole number -47.03 is a negative number -179 is a negative whole number

Negative 0.6 is not a whole number.

Yes, it is.

Yes, it is.

79 & 81, or any whole number from 1 to 79 with any whole number greater than 81.

They can be. For example, -3 is a negative whole number.

integers are basically any whole number, a negative integer is a negative whole number...such as -12