Zero is a an integer and, since all integers are real numbers, zero is a real number.
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It is a negative real number.
Zero is the additive identity in the set of real numbers; when you add zero to any number, the number does not change its identity.
no because zero isn't positive or negative it is neutral
The sum is zero.
A negative real number is any non-imaginary number less than zero. Examples: -1 -2.435 -.0000000000000000111111 -341 -pi