Question

the place value of never changes​

Answer 1

Place values ( Units, tens, hundreds,….. ) are fixed in a number system. They do not change.

A digit has an intrinsic value which is multiplied by the place value to arrive at its contribution to the number.

Example: In 23, the place value of 2 is 10. Multiplied by its intrinsic value, its contribution is 20.

0, in view of its intrinsic value, when multiplied by any place value, contributes nothing