What do you mean by Whole Number in math?

An online whole number definition

A whole number belongs to the set of integers that are equal to or greater than zero.

For example, the set of numbers were 0, 1, 2, 3, 4, 5,6 etc

There was a difference between Whole numbers, Natural Numbers, and Integers.

Natural numbers were {1, 2, …},

Integers were {… -1, 0, 1, …}

Whole numbers were {0, 1, 2, …}

Yes zero is a whole number.The sum of whole numbers were 0, 1, 2, 3, 4, 5 etc

Are all postive numbers,including zeroes which do not include any fractional or decimal parts.

whole number is always a non-negative integer

R – Real Numbers

Z – Integers

N – Natural Numbers

Q – Rational Numbers

P – Irrational Numbers