Question

verify the multiplication is commutative for whole numbers

Answer 1

Let two whole numbers be 3 and 2
Commutative property = 3*2 =2*3
6=6
Thus commutative property of multiplication is proved.

Answer 2

Let us take two whole numbers.
Ex: 6 & 7 

6*7=42 and 7*6=42
let us take three whole numbers.
6*7*3=126 & 3*7*6=126