Commutative property of mathematical multiplication of integers

The commutative property of mathematical multiplication of integers says that multiplication of numbers in any order results into same answer.
In other words we can multiply numbers in any order without changing the result. 
The commutative property of mathematical multiplication of integers can be represented as following

ab = ba

OR

a x b = b x a

To understand commutative property of mathematical multiplication of integers we can try multiplying numbers in different orders and note the results. 
For example,

If a = 5 and b = 3

Then 5 x 3 = 15 and 3 x 5 = 15

So, 5 x 3 = 3 x 5 as 15 = 15

Another example,

If a = 9 and b = (-5)

Then 9 x (-5) = (-45) and (-5) x 9 = (-45)

So, 9 x (-5) = (-5) x 9 as (-45) = (-45)