The difference of two natural numbers is a natural number?

No. The difference can be a negative integer which is not a natural number.

Difference of two natural numbers is not always a natural number. For any two natural numbers a and b, a-b = natural number only when a>b. Otherwise the result is a integer. No, e.g. 6 - 10 =...

Yes. Natural numbers, or counting numbers, cannot produce non-natural numbers, or complex numbers, through methods of multiplication or addition. However 5 divided by 3 creates the complex number...

No. Example: The difference of 2/5 & 1/3: 2/5 - 1/3 = 1/15 ∈ ℚ (is a rational number) ∉ ℕ (is not a natural number).

All negative integers are whole numbers but not natural numbers. Mathematicians are not agreed about whether 0 is a natural number or not.