Place value is WHERE.
Value is HOW MUCH.
Count the places from the RIGHT.
Ones, tens, hundreds, thousands — always in that order, always starting at the
right-hand end.
Zero is not nothing. It holds the place. Take the 0 out of
47 205 and it collapses to 4 725 — every digit to its left slides down.
Same digit, different worth. In 55 555 every digit is a 5, and
no two of them are worth the same amount.