Take a few examples and check whether subtraction is commutative for whole numbers or not?

Take a few examples and check whether- Division is commutative for whole numbers or not?

Take a few examples and check whether division is commutative for whole numbers or not?

Take at least five more examples and check whether division is associative for integers.

Subtraction of whole numbers may not be closure. Reason?

Check whether 5sqrt2 is irrational numbers or not ?

Take atleast 5 different pairs of integers and see if subtraction is commutative.

Check whether x+3 is irrational numbers or not?

Take atleast 5 pairs of integers and observe whether the division of integers is commutative or not ?

Is (8-:2)-:4=8-:(2-:4) ? Is there any associated property for division? Check if the property holds for subtraction of whole numbers too.

Is (16-:4)-:2=16-:(4-:2) ? Is there any associative property for division? Check if the property holds for subtraction of whole numbers too.