Which one of the following is a whole number but not a natural number?
1) 0
2) 22
3) -12
4) 3
3) -12 is a whole number but not a natural number.
Which set of numbers is the largest family group that includes all of the others?
1) irrational numbers
2) natural numbers
3) rational numbers
4) real numbers
4) real numbers is the largest family group that includes all of the others.
A whole number is a number that is positive, negative, or zero, with no decimal or fractional parts.
A natural number is a counting number that starts from 1 and goes to infinity, so it does not include zero or negative numbers.
Given the options, the number 0 is a whole number since it does not have any decimal or fractional parts. However, it is not considered a natural number since it does not start from 1 and includes only positive integers.
Therefore, the answer is 1) 0.