# Place Value

Throughout history, most (but not all!) human cultures have used a decimal number system, based on the number $10$ .

In our positional decimal notation,
**
digits
**
have different values depending on where they are
**
placed
**
. Each
**
place value
**
is
$10$
times the place value to the right, and one-tenth of the place value to the left.

$\mathrm{96,548,327}$

This number has eight digits.

In the
**
ones
**
place is a
$7$
, with the value
$7\times 1=7$
.

In the
**
tens
**
place is a
$2$
, with the value
$2\times 10=20$
.

In the
**
hundreds
**
place is a
$3$
, with the value
$3\times 100=300$
.

In the
**
thousands
**
place is an
$8$
, with the value
$8\times 1000=8000$
.

In the
**
ten thousands
**
place is a
$4$
, with the value
$4\times 10,000=40,000$
.

In the
**
hundred thousands
**
place is a
$5$
, with the value
$5\times 100,000=500,000$
.

In the
**
millions
**
place is a
$6$
, with the value
$6\times 1,000,000=6,000,000$
.

In the
**
ten millions
**
place is a
$9$
, with the value
$9\times 10,000,000=90,000,000$
.

The total value of the number is the sum of all the place values:

$90000000+6000000+500000+40000+8000+300+20+7=96,548,327$