It is the additive identity.
The square root of 0 is 0, which is a real number.
No, 0 does not have a reciprocal, yet 0 is a real number.
No, 0 is a real number and is considered a part of the number system.
0 is a real number.
It is a real number because for example water freezes at 0 degrees Centigrade
yes it is
Yes; 0 ∈ ℝ
A real answer is a number that consists of these numbers: 1,2,3,4,5,6,7,8,9 or 0)
Digit is not a real number unless it is 0-9
The number 0.
Yes.
No.