The additive opposite of the additive opposite is the number itself. The multiplicative opposite of the multiplicative opposite is the number itself, unless the number was 0, in which case the first opposite is not defined.
A counting number is the numbers you lear as a little kid, counting numbers are one and up. Integers include the counting numbers, 0, and the opposite (negative) of counting numbers. So yes, a counting number or the opposite of a counting number is an integer.
A counting number is the numbers you lear as a little kid, counting numbers are one and up. Integers include the counting numbers, 0, and the opposite (negative) of counting numbers. So yes, a counting number or the opposite of a counting number is an integer.
If by "opposite" you mean its additive inverse, the answer is 0. If by "opposite" you mean its multiplicative inverse, for the number x, it will be (x+1/x).
A non-integer.
An integer less than 0 would be at the same distance from 0 as its positive equivalent, but would lie on the opposite side (left) of the 0.
still zero
The opposite of 243 is -243.
An Integer
Yes, there is a greatest negative integer. It is -1 because -1 is the only negative number before 0 and negative numbers are the opposite of positive numbers.
How about zero = 0 which is an integer but not a whole number
no, integer is 0 or positive / negative whole number