$\"\"$

Statement: Subtraction of whole number is commutative.

Find true or not.

Conculsion: The conjecture is not true.

Counter example:

Check $\"\"$ .

Let $\"\"$ and $\"\"$ .

Check the solution for $\"\"$ value.

$\"\"$ (Substitute $\"\"$ and $\"\"$ )

$\"\"$ (Subtract: $\"\"$ and $\"\"$ )

Subtraction of whole number is not commutative.

$\"\"$

Subtraction of whole number is not commutative.