Answer:
Moving places of a digit changes its value.
We can see the following example.
Say we have a number 1234.
We have 1 at thousand place with a value of 1000.
We have 2 at hundreds place with a value of 200.
We have 3 at tens place, with a value of 30.
We have 4 at ones place with a value of 4.
Say we interchange the numbers and make it 4321.
Now we have 4000 , then 300, then 20 then 1.
We can see that the 4 at ones place is just 4 but at thousand place, its value is 4000.
Hence, it is clear that moving the place of a digit change its value.
