What does number place mean?
The "place" of a digit in a number refers to how many factors of
ten go into it. For example, in the number 123.456, 1 is in the
hundreds place because it's being multiplied by a factor of 100, 2
is in the tens place because it's being multiplied by a factor of
ten, 3 is in the ones place because it's being multiplied by a
factor of one, and so on.
To put it differently, 123.456 is equal to 100 + 20 + 3 +.4 +
.05 +.006, and 100 equals 1 times 100, .4 equals 4 times one tenth,
and .006 equals 6 times one thousandth.